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Five-Membered Hetarenes with One Chalcogen and One Additional Heteroatom
From 4-Benzamido-3-1,2-dithiole-3-thione
other
Author(s):
G. V. Boyd
Publication date
(Online):
2002
Publisher:
Georg Thieme Verlag KG
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Karger: Endocrinology
Author and book information
Book Chapter
Publication date (Print):
2002
Publication date (Online):
2002
Page
: 1
DOI:
10.1055/sos-SD-011-00623
SO-VID:
deeb89b8-e071-4900-a1df-ceac28550835
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Book chapters
pp. 1
By Hydrolysis of 2-(Benzoylamino)selenazoles
pp. 1
Arylation of 1,3-Dithiole-2-thiones or -selones
pp. 1
Fragment S—C—S—C—C
pp. 1
Alkylation of 1,3-Dithiole-2-thiones
pp. 1
From Other Heterocycles
pp. 1
Replacement of One Carbofunctional Group by Another
pp. 1
From 2-Acylbenzenesulfonamides or 2-(Sulfinyl)benzamides
pp. 1
From [Amino(nitroamino)methylene]dithiocarbamates and "Acidic" Methyl Halides
pp. 1
Selenazolidines from Selenoureas and α-Halo Carboxylic Acids
pp. 1
Aryl and Heteroarylisothiazoles from Isothiazolamines
pp. 1
Cyclization of -(2-Hydroxyphenyl)amidines
pp. 1
From Cyanomethyl Carbimidothioates
pp. 1
Oxidation of Alkylidene Derivatives of 2-Hydrazinoselenazoles to Quinonoid Dyes
pp. 1
Cyclization of -Propargylamides and -β-(Acylaminomethyl)-β-iodovinyl Phenyl Sulfones
pp. 1
By Formation of Two C—C Bonds
pp. 1
Elimination of a Methoxy Group from 2-Methoxy-1,3-oxathioles
pp. 1
From Selenocarboxamides and α-Halo Carbonyl Compounds
pp. 1
From 1-Aryl-Substituted 2,2,2-Trichloroethanols and Aminothiocarbonyl Compounds
pp. 1
Diazo Coupling
pp. 1
1,6,6aλ-Trithia-3-azapentalenes
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
With Thioureas
pp. 1
By Formation of One O—C and One N—C Bond
pp. 1
Halogenation
pp. 1
From 1,3-Dithioles
pp. 1
Reduction of Thiazole 3-Oxides
pp. 1
By Halogens
pp. 1
From 1-Aminopropan-2-ones, 1-Aminopropene-2-nitriles, or 2-Arylethene-1,1-dicarbonitriles
pp. 1
2,3-Dihydrothiazoles
pp. 1
By Annulation to the Isoxazole Ring
pp. 1
By Cycloaddition of Nitrile Oxides to C=C Bonds, Accompanied by Elimination or Dehydrogenation
pp. 1
From 2-Diazo-1,3-diketones and Phosphaalkynes
pp. 1
From Bromo-Substituted Acetones
pp. 1
Via Substitution of an Oxygen Substituent: From -(2-Oxoalkyl) Thiocarbamates (or Thiocarboxylates)
pp. 1
Of a Pyrimido[4,5] System
pp. 1
From Thiobenzamides
pp. 1
By Decarboxylation
pp. 1
By Elimination
pp. 1
From 1,2-Dithiolium Salts
pp. 1
From But-2-ynedinitrile or But-2-ynediamide
pp. 1
From α-Azido Ketones or Esters, Acyl Halides, and Triphenylphosphine
pp. 1
Catalytic Decomposition of Aryldiazoacetic Benzoic Anhydrides
pp. 1
Fragments P—C, C and O—C
pp. 1
By Carbofunctional Groups
pp. 1
Replacement of Lithium by Sulfur- or Phosphorus-Containing Reagents
pp. 1
Annulated 1,2-Dithiolium Salts
pp. 1
From α-Thiocyanato Ketones
pp. 1
Protonation and Complex Formation
pp. 1
Synthesis by Substituent Modification
pp. 1
Nucleophilic Additions to Exocyclic Double Bonds
pp. 1
Elimination of Alkanethiolate Ions from 1,3-Thiaselenoles
pp. 1
From Vinylene Carbonate and Amides
pp. 1
1,6,6aλ-Triselenapentalenes
pp. 1
Protonation of 1,6-Dioxa-6a-thiapentalenes
pp. 1
From 4-Thiopyran-4-thiones
pp. 1
By Cycloaddition of Thiazyl Chloride to a Furan or a Pyrrole
pp. 1
Annulated 1,3-Dioxolium Salts
pp. 1
By Formation of Two N—C Bonds
pp. 1
From Heteropentalenes
pp. 1
From 3-Aminoprop-2-enenitriles
pp. 1
By Formation of One S—C and One N—C Bond
pp. 1
Replacement of Sodium by Carbon Electrophiles
pp. 1
Substitution of One Nitrogen Substituent by Another
pp. 1
N-Alkylation: 3-Alkylselenazolium Salts
pp. 1
Replacement of Halogen by Hydrogen
pp. 1
By Oxidation of 3-1,2-Dithiole-3-thiones
pp. 1
Replacement of Halogen by Carbon Nucleophiles
pp. 1
By Formation of One S—S and One N—C Bond
pp. 1
Fragments Se—C—N and C—C
pp. 1
2,1-Benzoxatellurolium Compounds
pp. 1
By Metals
pp. 1
By Annulation to an Arene
pp. 1
C=C Bond Migration
pp. 1
By Carbon Groups
pp. 1
By Ring Contraction of Heterocycles
pp. 1
Fragments O—C—N and C—C
pp. 1
Reduction of Substituents
pp. 1
Of Hydrogen
pp. 1
Rearrangement of Substituents
pp. 1
Cyclization of 2-Tellanyl--acetylanilines
pp. 1
From Alkyl Isocyanides and S—C Synthons
pp. 1
From Ketones Halogenated In Situ and Aminothiocarbonyl Compounds
pp. 1
Arenotellurazoles
pp. 1
From 2-(Hydroxyimino)alkyl Carbamodithioates or 2-[2-(Hydroxyimino)alkyl]isothioureas
pp. 1
By Formation of One Se—C Bond
pp. 1
Of Halogen
pp. 1
From α-Bromoacyl Chlorides and Selenocarboxamides
pp. 1
By Oxidative Ring Closure of 3-Aminopropenethioamides or 3-Aminoprop-2-enethiones
pp. 1
From Cyanoimidothioates, -Methyl--cyanoisothioureas, or Dimethyl Cyanocarbonodithioimidoate and Sulfanylacetic Acid Derivatives
pp. 1
By Formation of One S—N Bond
pp. 1
Reductive Cyclization of 2-Nitroalkenyl Ketones and 2-Nitroalkenylnitriles
pp. 1
Cyclization of (Acylcarbamoyl)carbenes
pp. 1
Replacement of Halogen by Oxygen or Sulfur
pp. 1
From α-(Thioacylamino)carbonitriles
pp. 1
From 1,4-Quinones and 4-(2-Phenylethanethioyl)morpholine in the Presence of Aryl Aldehydes
pp. 1
From Carbonylnitrenes and Alkynes
pp. 1
Fragments C—O—C—C and P
pp. 1
From α-Halo Ketones and Thiocarboxamide Derivatives
pp. 1
From -(2-Oxoalkyl) Dithiocarboxylates
pp. 1
S-Alkylation of Thiazole-2(3)-thiones
pp. 1
From Isothioureas
pp. 1
With a Leaving Group in the 2-Position
pp. 1
Of Heteroatoms
pp. 1
From α-Functionalized Ketones or Ketone Derivatives and Aminothiocarbonyl Compounds
pp. 1
From Acetylenic Ketones or Aldehydes and Hydroxylamine -Sulfonic Acid
pp. 1
By Annulation to an Arene or Hetarene
pp. 1
Replacement of Hydrogen by Magnesium, Aluminum or Zinc
pp. 1
From 2-Methylanilines
pp. 1
With Acyl Chlorides
pp. 1
From 2-Sulfanylphenol and Carboxylic Acid Derivatives or Equivalents
pp. 1
From Chlorothioacetic -Acid and Nitriles
pp. 1
Cyclization of 2-(Methylselanyl)benzamides
pp. 1
Cyclocondensations of Thiocarbamate (or Dithiocarboxylate) Derivatives
pp. 1
From 2-(2-Bromo-1-phenylethylene)malononitrile and Aminothiocarbonyl Compounds
pp. 1
Of Hydrogen
pp. 1
By Reactions of Hydroxylamine with α,β-Dihalo Ketones, Esters, and Nitriles
pp. 1
By Formation of One P—C and One O—C Bond
pp. 1
From -(Tosylmethyl)-′-tritylcarbodiimide and Aldehydes
pp. 1
From α-Hydroxy Carbonyl Compounds and Thiocyanic Acid
pp. 1
Acid Cleavage of Selenazol-2-yl Ketones to 2-Unsubstituted Selenazoles
pp. 1
Addition Reactions
pp. 1
Reactions of Benzoselenazolium Salts
pp. 1
Oxidation of 4-Aryl-2-hydrazinoselenazoles to 2-Unsubstituted Selenazoles
pp. 1
Ring Closure of a 2-Tellurium-Functionalized Arylaldehyde with a Nitrogen Source
pp. 1
Replacement of Sulfur by Oxygen
pp. 1
By Reactions of Hydroxylamine with α,β-Acetylenic Carbonyl and Related Compounds
pp. 1
Aromatization
pp. 1
2-Imino-2,3-dihydroselenazol-3-amine Derivatives
pp. 1
Synthesis by Ring Transformation
pp. 1
Beckmann Rearrangement of 2-Hydroxy-Substituted Acetophenoneand Propiophenone Oximes
pp. 1
By Formation of One N—C Bond
pp. 1
5-Fluoroselenazoles
pp. 1
From 3-[2-(Dialkylamino)vinyl]-1,2-dithiolium Salts
pp. 1
By Rearrangement of 1,1-Dihalo-4-1-benzotellurin-4-ones
pp. 1
From an Azetidinone
pp. 1
With Imidoyl Chlorides and Derivatives
pp. 1
Protonation of 1,3-Dithiol-2-ylidenes
pp. 1
Reactions of Oxime-Derived Dianions with Amides
pp. 1
With Isothiocyanates
pp. 1
Addition of Electrophiles to 1,3-Benzodioxol-2-one
pp. 1
From -Imidoylthioureas or Thiocarbamoylimidates and "Acidic" Methyl Halides
pp. 1
Isoxazol-3-ols by Cyclization of Hydroxamic Acids Derived from Protected β-Oxo Esters
pp. 1
Electrophilic Substitution
pp. 1
From Disulfides
pp. 1
By Formation of Two S—C Bonds
pp. 1
Reactions of [2-(Alkylsulfanyl)alk-1-enyl] Ketones with Hydroxylamine
pp. 1
Aminoisoxazolobenzazines by Reaction of Nitrobenzazines with Potassium Cyanide in Methanol
pp. 1
From 2-(-Acetylaminoaryl)mercury Chlorides
pp. 1
From 3-(Alkylsulfanyl)-1,2-dithiolium Salts
pp. 1
Fragments C—N—C—S and C
pp. 1
Reduction of Nitroisoxazoles
pp. 1
Monocyclic Mesoionic 1,3-Dioxolium-4-olates
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
By Oxygen Functionalities
pp. 1
From α-Halooximes and Thiocyanates
pp. 1
Synthesis by Substituent Modification
pp. 1
From α-Bromo Ketones and Alkanethiocarboxamides in the Presence of Aryl (or Cinnamyl) Aldehydes
pp. 1
Replacement of Oxygen by Sulfur
pp. 1
From a Selenocarboxylate and an Arylamine
pp. 1
From [1-(Alkylsulfanyl)alkylidene]-dimethylimidamidium and -guanidinium Salts
pp. 1
From Amides
pp. 1
By Formation of One Heteroatom—Carbon and One C—C Bond
pp. 1
Rearrangement of -3-(Arylselanyl)propenoyl Chlorides
pp. 1
Isoxazolodiazines
pp. 1
Bromination
pp. 1
From 2-(Selenocyanato)phenyl Ketones
pp. 1
Elimination of Alkaneselenolate Ions
pp. 1
From 1,2-Dithiols
pp. 1
By Formation of One S—N and One N—C Bond
pp. 1
Substitution of Existing Substituents
pp. 1
2,1-Benzisothiazoles
pp. 1
By Heteroatoms
pp. 1
Ring Expansion
pp. 1
From α-Halo-Substituted Aldehydes and Aminothiocarbonyl Compounds
pp. 1
Substitution of Existing Substituents
pp. 1
From 5-Aryl-1,2,3-dithiazoles
pp. 1
By Formation of One O—N Bond
pp. 1
From α-Aminonitriles and Carbonyl Sulfide, Carbon Disulfide, or Isothiocyanates
pp. 1
With Orthoesters
pp. 1
From 2-Sulfanylacetophenone Oximes
pp. 1
From Other Heterapentalenes
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Mesoionic Selenazolium Compounds from Diselenides
pp. 1
By Formation One Te—N and One N—C Bond
pp. 1
From -Phenylbenzamide and Selenium
pp. 1
Cyclization of β-Hydroxyimino Carbonyl Compounds
pp. 1
Fragment Se—C—N—C—C
pp. 1
Condensation at Alkyl Groups of Alkylthiazoles, Alkylthiazolium Salts, and Thiazole 3-Oxides
pp. 1
Condensation in the Side Chain by Aldehydes
pp. 1
From Enamines and Aminothiocarbonyl Compounds
pp. 1
Addition Reactions
pp. 1
N-Alkylation
pp. 1
By Electrophiles Other Than Carbon Electrophiles
pp. 1
Fragments Se—C—C—C and N
pp. 1
From a 1,3-Dichloropropenylium Chloride
pp. 1
Of a Pyrido[4,3] System
pp. 1
From a Pyridin-3(4)-one
pp. 1
Fragments S—C, N—C, and C
pp. 1
Monocyclic 1,2-Oxatellurolium Compounds
pp. 1
3-(Selenazol-4-yl)alanine
pp. 1
With Carboxylic or Thiocarboxylic Esters
pp. 1
2-Chloro-4,5-diphenylselenazole
pp. 1
By Oxidation of 2-Aryl-4-(hydroxymethyl)selenazoles
pp. 1
Fragments Te—C—C—C and N
pp. 1
From 3-Alkylidene-3-1,2-dithioles
pp. 1
By Cyclization of 2-Hydroxyaryl Aldoxime -Carbamates
pp. 1
Acylation
pp. 1
Hetero-Ring Size Retained Overall
pp. 1
Aziridine Formation
pp. 1
Acylation and Alkylation
pp. 1
Addition of Electrophiles to 1,3-Dioxol-2-one
pp. 1
From Alkyl Isothiocyanates and S—C Synthons
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
From Ketones and N-Substituted -Chloroisothiocarbamoyl Chlorides
pp. 1
Via Radical Reactions
pp. 1
Reduction of Oxazole 3-Oxides
pp. 1
In Situ Preparation of Thioureas from Isothiocyanates
pp. 1
Replacement of Phosphorus Groups by Hydrogen
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
From 2-Aminoalkanethioic Acids and 'One-Carbon' Reagents
pp. 1
N-Alkylation
pp. 1
Fragment Arene—N—C—Se
pp. 1
Synthesis by Substituent Modification
pp. 1
From 2-Oxoalkyl -Dialkyldiselenocarbamates
pp. 1
Thermal Decomposition of 2-Azidoaryl Carbonyl Compounds
pp. 1
Chlorosulfonation and Sulfonation
pp. 1
By Rearrangement of 2-(2-Arylhydrazino)thiazoles
pp. 1
From Enaminonitriles and Thiocarboxamides
pp. 1
Desulfurization of 2-Thio-3-1,2-thiaphospholes
pp. 1
Protonation and Complex Formation
pp. 1
By Ring Enlargement of Three- or Four-Membered Heterocycles
pp. 1
From Phenacyl Thiocyanates and Nitriles
pp. 1
Addition Reactions
pp. 1
Modification of Side Chains
pp. 1
By Rearrangement of Substituents
pp. 1
By Formation of One O—Te Bond
pp. 1
From 3-Haloalk-1-enes or 3-Haloalk-1-ynes and Aminothiocarbonyl Compounds
pp. 1
From α-[(Iminomethyl)sulfanyl] Ketones
pp. 1
Modification of Substituents in the α-Position
pp. 1
Ionization of 2,2-Dichloro-1,3-benzodioxole in the Presence of Nucleophiles
pp. 1
Isotellurazoles (1,2-Tellurazoles)
pp. 1
From 2-Seleno-Substituted Aldehydes or Ketones
pp. 1
Nucleophilic Substitution
pp. 1
From 2-Seleno-Substituted Arenecarbonyl Compounds and a Nitrogen Source
pp. 1
Nitration
pp. 1
1,3-(Benzo)Ditellurolium Salts
pp. 1
Ring Closure of a 2-Tellurium-Functionalized Enal with a Nitrogen Source
pp. 1
Fragment Se—C—S—C—C
pp. 1
Replacement of a Carbon Substituent by Nitrogen
pp. 1
By Oxidation of Preformed 3-2,1-Benzoxatelluroles
pp. 1
By Reactions of Hydroxylamine with 3-Oxoaldehydes
pp. 1
Aromatization by Rearrangement (Isomerization)
pp. 1
From 3-[Dibromo(methyl)-λ-tellanyl]prop-2-enals and Arylamines
pp. 1
From 1,4-Dithiin-2,3,5,6-tetracarbonitrile
pp. 1
From 1,4-Quinones and Thioureas
pp. 1
Replacement of Sufur by Sulfur
pp. 1
Modification of Other Substituents
pp. 1
Oxirane Formation
pp. 1
From Selenocarboxamides and 2-Chlorooxiranes
pp. 1
By Formation of Two S—C Bonds
pp. 1
Elimination of Hydride from a 1,3-Benzoxathiole
pp. 1
From Derivatives of Isocyanoacetic Acid and Arylsulfanyl Chlorides
pp. 1
By Formation of Two S—S and Three S—C Bonds
pp. 1
Rearrangement of -(2,4,6-Trihalophenyl) ,-Dimethylthiocarbamates
pp. 1
Fragments O—N—C and C—C
pp. 1
1,3-(Benzo)Thiatellurolium and 1,3-(Benzo)Selenatellurolium Salts
pp. 1
From α-Diazo Ketones and Aminothiocarbonyl Compounds
pp. 1
Of a Pyrimido[5,4] System
pp. 1
From Tris(ethoxycarbonyl)methanimine and Dichlorocarbene
pp. 1
Cycloelimination from Dihydroisoxazoles
pp. 1
By Formation of One O—S, One S—S, and Two S—C Bonds
pp. 1
Aromatization by Addition Reactions
pp. 1
Synthesis by Substituent Modification
pp. 1
From 1,4-Benzothiazines and Derivatives
pp. 1
From -Acyldithiocarbamates or -Acylcarbamates and "Acidic" Methyl Halides
pp. 1
Fragment C—C—S—C—N
pp. 1
From 1,1-Disubstituted 3-Acylselenoureas and Active Halomethylene Compounds
pp. 1
From 4-Hydroxy-3-1,2-dithiole-3-thiones
pp. 1
Replacement of a Nitrogen Substituent by Hydrogen
pp. 1
From 1,6,6aλ-Trithia-3-azapentalenes
pp. 1
From α-Bromoketimines and Ammonium Thiocyanate
pp. 1
From Isocyanides
pp. 1
Replacement of Metals by Other Groups
pp. 1
Cyclocondensation of a 2-Oxoalkyl Benzoate in the Presence of Hydrogen Sulfide
pp. 1
Fragments N—Hetarene and Se—C
pp. 1
From (Aminosulfanyl)arenes
pp. 1
By Ring Contraction
pp. 1
By Formation of One Se—Se and Two Se—C Bonds
pp. 1
Replacement of Nitrogen Substituents by Halogen
pp. 1
From 2-Halonitrobenzenes
pp. 1
Fragments N—C, C—C, and S
pp. 1
By Reaction of 4-(Chloromethyl)- and 4-(Iodomethyl)selenazoles
pp. 1
Replacement of Hydrogen by Silicon or Tin
pp. 1
From -(1-Iminoalkyl)thioglycolic Acids
pp. 1
Substitution of Carbon Functionalities
pp. 1
Synthesis by Ring Transformation
pp. 1
From 1,2-Dithiolium Salts
pp. 1
From α-(Hydroxyamino)phenylacetic Acid and Aldehydes
pp. 1
Modification of NSubstituents
pp. 1
From Isocyanides and Carbonyl Compounds
pp. 1
With Benzoylsulfanylcopper
pp. 1
With Carboxylic Acids
pp. 1
From 2-Chlorohetarenecarbonitriles and Thiourea
pp. 1
By Oxidation of Substituted 2-Benzylselenazoles
pp. 1
By Formation of One C—C Bond
pp. 1
From 3-[2-(Methylsulfanyl)vinyl]-1,2-dithiolium Salts
pp. 1
By Reaction of 2-Substituted 4-Formylselenazoles with Diazomethane
pp. 1
Fragments C—N—C and S—C
pp. 1
From 2-Substituted Nitro(het)arenes and a Sulfur Component
pp. 1
By Nitrogen Functionalities
pp. 1
From Propane-1,2,3-triones
pp. 1
From Thiolates
pp. 1
By Formation of One S—N or One N—C Bond
pp. 1
Synthesis by Ring Transformation
pp. 1
From 3-(Methylsulfanyl)-1,4,2-dithiazines
pp. 1
Protonation
pp. 1
Modification of Substituents
pp. 1
Replacement of Hydrogen by Deuterium
pp. 1
Rearrangement of Nitrothiazoles
pp. 1
By Reactions of Hydroxylamine with Miscellaneous Analogues of 1,3-Dicarbonyl Compounds
pp. 1
From Ethene-1,1-dithiolates
pp. 1
From α-Hydroxy Ketones and Carbamic Acid Derivatives
pp. 1
From 1-Acyl-1-1,2,3-triazoles
pp. 1
By Formation of One S—C Bond and Two N—C Bonds
pp. 1
Synthesis by Ring Transformation
pp. 1
α-Hydroxyalkylation
pp. 1
Other Rearrangements and Ring Cleavages
pp. 1
O-Alkylation, O-Acylation and S-Alkylation
pp. 1
From 2-(Benzoylamino)-Substituted Triphenylphosphonium Salts
pp. 1
With Ring Contraction
pp. 1
1,3-Oxathiolium-5-olates
pp. 1
From 1,3,4-Oxathiazoles
pp. 1
Synthesis of Isoxazolamines by Reactions of Hydroxylamine with 2-Cyano Esters
pp. 1
From 1,4,2-Dithiazines
pp. 1
Modification of Substituents
pp. 1
Reaction with Aldehydes and Oxidation of the Intermediate
pp. 1
Substitution Reactions
pp. 1
Exchange of Heteroatoms
pp. 1
From α-Thioacylamino Ketones, α-Thioureido Ketones and α-Thioacylamino Acetals
pp. 1
From 2-Oxoalkyl -Dimethylselenothiocarbamates
pp. 1
Hetero-Ring Size Retained Overall
pp. 1
By Formation of One N—C Bond
pp. 1
Elimination of Alkanolate Ions from 1,3-Ditelluroles
pp. 1
Fragments S—C, C—C, and N
pp. 1
Reaction with Phosphaalkynes or Phosphaalkenes
pp. 1
From 1,5-Benzothiazepines
pp. 1
Isoxazolopyridines
pp. 1
By Hydrolysis of 2-(Isopropylidenehydrazino)selenazoles
pp. 1
Alkylation under Cyclization
pp. 1
From Isoselenocyanates and α-Lithiated Isocyanides
pp. 1
With Carbon Disulfide
pp. 1
Of the Thiazole Unit
pp. 1
From Hypervalent Alkynyliodonium Salts and Aminothiocarbonyl Compounds
pp. 1
Condensation with Acyl Chlorides
pp. 1
Deoxygenation of 2-Nitroacylbenzenes
pp. 1
From β-Thioxo Ketones
pp. 1
2-Aryl-4,9-dioxonaphtho[2,3-]selenazoles from Sodium Salts of 2-Amino-3-selanylnaphtho-1,4-quinone
pp. 1
With Ketene Acetals
pp. 1
By Oxidation of 2-Hydrazinoselenazoles
pp. 1
Reduction of Carbonyl Compounds
pp. 1
From Other 1,2-Dithiole Derivatives
pp. 1
Synthesis by Ring Transformation
pp. 1
Intramolecular Aza-Wittig Reaction of β-(Acyloxy)vinyl Azides
pp. 1
1,2-Diselenolium Salts and Related Compounds
pp. 1
Formed In Situ from -(2-Nitroaryl) Dithiocarbamates
pp. 1
Of Hydrogen
pp. 1
Reactions Involving Deprotonation of Isoxazolium Salts
pp. 1
Substitution of the 2-Methylsulfanyl Group of 3-Methyl-2-(methylsulfanyl)benzoselenazolium Iodide by Formic Hydrazide
pp. 1
Synthesis of Isoxazol-5-amines from α-Halooximes and Isocyanides
pp. 1
Thieno[3,2-]selenazoles from Thienyl Selenoates
pp. 1
By Dehydration and Dehydroamination of Dihydrothiazoles
pp. 1
Fragments C—N—C—Se and C
pp. 1
With Activated Ketones
pp. 1
Protonation
pp. 1
From 3-Chloroprop-2-eniminium Salts, Sodium Selenocyanate, and Ammonia
pp. 1
Fragments C—S—C—N and C
pp. 1
Cyclization of β-(Acyloxy)-,-bis(trimethylsilyl)enamines
pp. 1
N-Alkylation or N-Acylation of 3-Hydroxythiazol-2(3)-imine
pp. 1
Bis(selenazol-2-yl)methane and Oxazol-2-yl(selenazol-2-yl)methane Derivatives
pp. 1
From Aminomalononitrile and Carboxylic Acids or Their Derivatives
pp. 1
By Deuterium
pp. 1
From α-Halo Ketones and Amides
pp. 1
Reaction of Haloisoxazoles with Alkoxides
pp. 1
With Acyl Chlorides Using Salts of the Thiol
pp. 1
Transmetalation
pp. 1
By Formation of One Se—C Bond
pp. 1
2-[(3-1,2-Dithiol-3-ylidene)methyl]-1-oxa-6,6aλ-dithiapentalenes
pp. 1
From 1,2,4-Benzothiadiazines
pp. 1
By Formation of One Heteroatom—Carbon Bond
pp. 1
Oxidation
pp. 1
Substitution of Existing Substituents
pp. 1
Reaction of 2-Alkyl-1,3-dithiolium Salts with Aldehydes
pp. 1
From 1,2-Dithioles and Related Compounds
pp. 1
α-Oxygenation
pp. 1
From α-(Acylamino)carbothioamides
pp. 1
Reduction of Isoxazolecarboxylic Acids via Mixed Anhydrides
pp. 1
Reaction with Carboxylic Acid Derivatives
pp. 1
Modification of Substituents
pp. 1
Nitration and Nitrosation of Thiazoles
pp. 1
Fragments N—C—C—C and Se
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Photochemical Rearrangements
pp. 1
Masked as a Cycloadduct with Azides
pp. 1
By Formation of One Se—Se Bond
pp. 1
By Formation of One Te—N, One Te—C, and One N—C Bond
pp. 1
Substitution by Bromination
pp. 1
Fragments C—O—C—C and N
pp. 1
Of Heteroatoms
pp. 1
Fragments C—N, C, C, and S
pp. 1
From Nitrile Ylides and S—C Synthons
pp. 1
With Simultaneous Annulation of a Phenyl Substituent
pp. 1
From 3-Chloro-1,2-benzisoselenazolium Salts
pp. 1
From α-Functionalized Carboxylic Acid Derivatives and Aminothiocarbonyl Compounds
pp. 1
From α-Sulfanyl Ketones and Nitriles
pp. 1
Fragment Te—Arene—C—N
pp. 1
By Cyclization of 2-Methoxy-, 2-Diazo-, 2-Amino-, and 2-(4-Tosyloxy)aryl Ketoximes
pp. 1
By Formation of Two S—S, Three S—C, and One C—C Bond
pp. 1
Replacement of Silyl or Stannyl Groups by Carbon Electrophiles
pp. 1
Direct N-Alkylation
pp. 1
From 4-Benzamido-3-1,2-dithiole-3-thione
pp. 1
From 2-(2-Nitroarylsulfanyl)cycloalkanones
pp. 1
From 5-(Arylimino)thiatriazoles
pp. 1
Rearrangement of 3-Substituted Thiazol-2(3)-imines and Thiazole-2(3)-thiones
pp. 1
Elimination of a Methoxy Group from a 2-Methoxy-1,3-dioxole
pp. 1
N-Alkylation and N-Acylation
pp. 1
Of Carbon Functionalities
pp. 1
From N-Substituted 2-[(Thioacyl)sulfanyl]acetamides
pp. 1
Methoxylation
pp. 1
Of Halogen or Alkylsulfanyl Groups
pp. 1
Synthesis of Thiazoles from Metalated Thiazoles
pp. 1
From 2-(Hydroxyimino)alkyl Dithiocarboxylates and Carbonodithioates
pp. 1
Reaction of the Methyl Group in 2-Methylbenzotellurazolium Salts
pp. 1
By Metals
pp. 1
By Palladium-Catalyzed Cross Coupling
pp. 1
By Cyclization of 2-[(Isopropylideneamino)oxy]benzonitriles
pp. 1
From Phenacylammonium Salts and Carbon Disulfide
pp. 1
Oxidation of a Monothio β-Diketone
pp. 1
Ring Contraction
pp. 1
Replacement of Oxygen or Selenium by Halogen
pp. 1
Annulation of a Six-Membered Ring
pp. 1
Cyclization of -Acylhexafluoropropan-2-imines
pp. 1
From Benzyl α-(Hydroxyimino)imidothioates
pp. 1
2-Alkyl- and 2-Arylselenazoles
pp. 1
Modification of Substituents
pp. 1
Oxidation of Oxazolylmethanols
pp. 1
From ,-Diacylimines and Nitriles
pp. 1
Annulation of a Five-Membered Hetarene
pp. 1
From 3-1,2-Dithiol-3-ones or 3-1,2-Dithiole-3-thiones by Halogenation
pp. 1
From Phosphaalkynes and Isomünchnones
pp. 1
From Benzo-1,4-quinones or Derivatives and a Sulfur Component
pp. 1
From 1-Oxa-6,6aλ-dithiapentalenes
pp. 1
With Acyl Chlorides Generated In Situ
pp. 1
With Carbon Monoxide and Haloarenes
pp. 1
By Formation of One S—C and One P—C Bond
pp. 1
By Formation of One O—Se Bond
pp. 1
Rearrangement of 2-(Aryltellanyl)benzoyl Chlorides
pp. 1
Other Transformations of Carbofunctional Substituents of Thiazoles
pp. 1
From Propynones or 3-Chloroprop-2-enals
pp. 1
By Reaction of C—H Acidic Compounds with Aldehydes
pp. 1
Condensation of Selenazoles with Aldehydes or 4-Nitrosodialkylanilines
pp. 1
Reactions with Enamines
pp. 1
From Chloridimidothiocarbonates, Dimethylthioformamide, and Isocyanides
pp. 1
(2-Hydroxyaryl)isoxazoles from Chromones
pp. 1
By Ring-Closure of One Se—N and C—N Bond
pp. 1
From Thiols, Disulfides, and Related Compounds
pp. 1
From Acetamides and Phenyl Isothiocyanate
pp. 1
Addition of Electrophiles to 1,3-Dioxole-2-thione
pp. 1
Oxidation of Thiazolidines
pp. 1
1,3-Oxathiolium-4-olates
pp. 1
From 1-Phenyl-2-(selenocyanato)ethanone
pp. 1
α-Halogenation of Methylisoxazoles
pp. 1
By Formation of One Se—C and One C—C Bond
pp. 1
Condensation with -Arylimidoyl Chlorides
pp. 1
Halogenation of 1,3-Dithiole-2-thiones
pp. 1
By Formation of One O—C Bond
pp. 1
From Thiocyanates and α-Halo Carbonyl Compounds
pp. 1
Addition Reactions
pp. 1
From Oximes
pp. 1
From α-Amino Acids or Derivatives and Dithiocarboxylic Acids
pp. 1
1,2-Thiaphospholes
pp. 1
Acid-Catalyzed Cyclization of 2-Oxo-2-phenylethyl Thiocyanates
pp. 1
1,6aλ-Dithia-6-selenapentalenes
pp. 1
Introduction of Alkylsulfanyl, Arylsulfanyl, Thiolate, or Arylselanyl Groups
pp. 1
By the Fischer Synthesis: Aldehyde Cyanohydrins and Aldehydes
pp. 1
Replacement of Oxygen or Sulfur Groups by Hydrogen
pp. 1
Aromatization
pp. 1
Sulfur Oxidation
pp. 1
By Ring Opening and Reclosure
pp. 1
Cyclization of 2-(Iminomethyl)benzenetellurenyl Chlorides
pp. 1
Reaction of 2-(Alkylsulfanyl)-1,3-thiaselenolium Salts with Amines
pp. 1
By Dehydrogenation
pp. 1
Addition Reactions
pp. 1
Cyclization of Selenazol-2-amine with Dimethyl Acetylenedicarboxylate or Ethyl Propiolate
pp. 1
Cyclization of 2-(Alkyltellanyl)--acylanilines
pp. 1
By Formation of One Se—C and One N—C Bond
pp. 1
Synthesis of Hydroxyisoxazoles and Isoxazolones by Reactions of Hydroxylamine with 3-Oxo Esters and 1,3-Diesters
pp. 1
In the Absence of Excess Base
pp. 1
From -Thiocarbamoylimidates and Methyl Sulfanylacetate
pp. 1
Replacement of Hydrogen by Carbon Electrophiles
pp. 1
Fragments S—C—S and C—C
pp. 1
By Carbofunctional Groups
pp. 1
4,5-Diphenylselenazol-2-ol
pp. 1
By Cyclization of -Hydroxy-2-fluoroarenecarboximidamides
pp. 1
Reactions Involving α-Deprotonation of Side Chains
pp. 1
From α-Azidoacetophenones, Dimethylformamide, and Phosphoryl Chloride
pp. 1
By Formation of Two O—C Bonds
pp. 1
Fragments N—C—C and C—O
pp. 1
Oxidative Cyclization of α,β-Unsaturated Oximes
pp. 1
From Propenes or Propanols
pp. 1
By Formation of One Te—N Bond
pp. 1
Elimination of Chloride from 2-Chloro-1,3-benzodioxoles
pp. 1
Isomerization of Indole and Isoindole Derivatives
pp. 1
Protonation of 1,6-Dioxa-6aλ-selenapentalenes
pp. 1
From -Nitrogen-Functionalized Aryl Sulfides or Disulfides
pp. 1
Addition Reactions
pp. 1
By Reactions of Hydroxylamine with α,β-Unsaturated Carbonyl Compounds
pp. 1
From Thioamides
pp. 1
Fragments C—C—N and C—S
pp. 1
From Nitrile Oxides and Alkynes
pp. 1
From 3-Oxothiocarboxylic Acid Derivatives
pp. 1
From α-Aminonitriles and Thiocarboxylic/Dithiocarboxylic Acids or Derivatives
pp. 1
Formed In Situ from 2-Nitroaryl Thiocyanates
pp. 1
Fragment N—Hetarene—Se—C
pp. 1
4-(1,2-Dithiolium-3-yl)phenolates and Analogous Compounds
pp. 1
Of Heteroatoms
pp. 1
From α-Cyano Ketones and Ammonia
pp. 1
Removal of the Benzoyl Group from 5-Benzoylthiazoles
pp. 1
From Ethanedithioamides and Aldehydes
pp. 1
From Hydrazonoyl Bromides and Selenoureas
pp. 1
N-Alkylation
pp. 1
Of Metals
pp. 1
By Formal Exchange of Ring Atoms with Retention of Ring Size
pp. 1
By Addition of Oxygen
pp. 1
Of Halogens
pp. 1
By Hydrogen
pp. 1
N-Protonation of 1,3-Oxaselenol-2-imines
pp. 1
From -Arylthioamides with a Halogen or Hydroxy Leaving Group in the 2-Position
pp. 1
1-Oxa-6,6aλ-dithia-3-azapentalenes
pp. 1
N-Alkylation
pp. 1
From 1,3-Dioxo Compounds and Disulfane or Polysulfanes
pp. 1
From 3-1,2-Dithioles
pp. 1
With -Alkyl Thiocarboxylates
pp. 1
From Bis(2-aminophenyl)ditellurides
pp. 1
Nitration
pp. 1
Nucleophilic Substitution
pp. 1
Methylation of 2-Phenylbenzotellurazole
pp. 1
Of Hydrogen
pp. 1
Modification of O- and S-Substituents
pp. 1
From 3-[(2-Aryl-2-oxoethyl)sulfanyl]-1,2-dithiolium Salts
pp. 1
From Carboxamides and Carbon Disulfide
pp. 1
Replacement of Sulfur or Oxygen Groups by Carbon-Containing Substituents
pp. 1
From Aroyl Cyanides and Aldehydes
pp. 1
With Thiocyanates
pp. 1
From α-Hydroxy Aldehydes or α-Hydroxy Ketones and Cyanamides
pp. 1
Addition Reactions: Protonation and N-Alkylation
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
From Bis(2-cyanoethyl) Disulfides and Related Compounds
pp. 1
Synthesis by Ring Transformation
pp. 1
1,6-Dioxa-6aλ-tellurapentalenes
pp. 1
With a Cyclopropenylium Salt
pp. 1
Of Metals
pp. 1
Formation of 3-Aminothiazolium Salts
pp. 1
By Formation of One C—C Bond
pp. 1
By Formation of Two S—S and Two S—C Bonds
pp. 1
With Ring Contraction of 4-Hydroxy-2-benzopyran-2-ones
pp. 1
Aromatization
pp. 1
Fragments C—C—N and C—Se
pp. 1
By Annulation to the Thiazole Ring
pp. 1
1-Oxa-6,6aλ-dithia-2-azapentalenes
pp. 1
By Rearrangement
pp. 1
1,2-Dithiolium-4-olates
pp. 1
Deuteration
pp. 1
Fragment O—C—N—C—C
pp. 1
Dehydrogenation of Dihydroisoxazoles
pp. 1
Halogenation of Thiazoles and Thiazole 3-Oxides
pp. 1
With Dithiocarbonates
pp. 1
Fragments C—N—C and C—Se
pp. 1
Intramolecular S-Alkylation
pp. 1
From 3-Chloro-2,1-benzisothiazoles
pp. 1
By 1,3-Dipolar Cycloaddition of Nitrile Sulfides to Alkynes and Alkenes
pp. 1
By Formation of One O—S Bond
pp. 1
With Carboxylic Anhydrides
pp. 1
Synthesis by Substituent Modification
pp. 1
Elimination of Alkanolate or Alkanethiolate Ions or Amines
pp. 1
Decarboxylation
pp. 1
From 4-(Acylaminomethyl)pyridinium Salts and Acetic Anhydride
pp. 1
2-[(3-1,2-Dithiol-3-ylidene)methyl]-1,6,6aλ-trithiapentalenes
pp. 1
Cyclocondensation of {[(Dialkylamino)carbonothioyl]oxy}acetic Acids
pp. 1
Fragments Se—Arene—C and N
pp. 1
Synthesis by Ring Transformation
pp. 1
From -Butyl Isocyanide and an -Acylimine
pp. 1
From 2-Amino(het)arenethiols
pp. 1
By Formation of One N—C Bond
pp. 1
Synthesis by Substituent Modification
pp. 1
By Hetero Functions
pp. 1
From -(α-Haloacyl)-, -(α-Haloalkylidene), -(α-Haloalkyl)-, -(α-Haloalkenyl)-Substituted Thioureas, Isothiocyanates, or Carbothioamides
pp. 1
Substitution by Nitration or Nitrosation
pp. 1
Reduction of 2-Nitrobenzonitriles
pp. 1
Reaction with Tris(trimethylsilyl)phosphine
pp. 1
By Formation of One N—C Bond
pp. 1
From 1-(Ethyltellanyl)-2-nitrobenzene
pp. 1
Base-Catalyzed Condensation of an Arylacetonitrile with a 1-Halo-4-nitroarene
pp. 1
Synthesis by Modification
pp. 1
By Formation of One O—C Bond
pp. 1
From -Imidoylcarbothioamides or -Aroylcarbothioamides and "Acidic" Methyl Halides
pp. 1
1,2-Benzisoselenazoles from 3,4-Diphenyl-1,2,5-selenadiazole
pp. 1
From -Arylthioureas
pp. 1
From Catechol and Carbenium Salts
pp. 1
By Formation of One O—C and One C—C Bond
pp. 1
By Formation of One O—C Bond
pp. 1
Thermal Dehydration of -Acetylmandelic Acid
pp. 1
Reaction of 5-Chloroisoxazoles with Alkylthiolates
pp. 1
From Alk-2-ynylamines and Isothiocyanates or Carbon Disulfide
pp. 1
From 3-1,2-Dithiole-3-thiones
pp. 1
Fragments C—S—C—C and P
pp. 1
From α-Bromo Ketones and -Alkyl Dithiocarboxylates
pp. 1
Cyclization of Selenazol-2-amines with α-Halo Carbonyl Compounds
pp. 1
Additional Methods
pp. 1
From Vinyl Azides and Carboxylic Acids or Acyl Chlorides
pp. 1
By Formation of One Se—N, One Se—C, and One N—C Bond
pp. 1
By Formation of One S—S Bond
pp. 1
Reaction of 5-Chloroisoxazoles with Amines and Lithium Amides
pp. 1
Modification of 1,2-Benzisotellurazole Iodide by Alkylation
pp. 1
Rearrangement of Thiazole 3-Oxides
pp. 1
Fragments O—C—N—C and C
pp. 1
From 4-Alkoxy- or 4-Acyloxy-1,2-dithiolium Salts
pp. 1
From Aziridine Derivatives and Carbon Diselenide
pp. 1
From α-Halomethylketimines and Aminothiocarbonyl Compounds
pp. 1
By Oxidation of 4-(Chloromethyl)selenazoles with Hexamethylenetetramine
pp. 1
Substitution of Existing Substituents
pp. 1
Deoxygenation of 2-Nitrosoacylbenzenes
pp. 1
Using -(2-Aminohetaryl) Dithiocarbamates
pp. 1
Addition Reactions
pp. 1
From Nitriles and Alkynes
pp. 1
Halogenation
pp. 1
From 5-Hydroxy-3-sulfanylpentan-2-one, Acetaldehyde, and Hydrazine
pp. 1
By Formation of Two Heteroatom—Carbon Bonds
pp. 1
From Vinylamines and Chloroformylsulfenyl Chlorides or Imidosulfenyl Chlorides
pp. 1
Monocyclic Mesoionic 1,3-Oxathiolium-4-olates and -5-olates
pp. 1
From Isoxazoles
pp. 1
From Thiaphosphiranes and Acetylenedicarboxylates
pp. 1
Fragment Se—C—Se—C—C
pp. 1
By Reaction of Selenazol-2-ylacetonitriles with Sodium Nitrite
pp. 1
With Dithiocarbamates
pp. 1
Fragment O—C—C—N—C
pp. 1
From -Selenoacylamidines or Morpholino(selenocarbonyl)amidines and Active Halomethylene Compounds
pp. 1
By Formation of One S—S, One S—C, and One C—C Bond
pp. 1
Addition Reactions
pp. 1
The Cornforth Rearrangement
pp. 1
From Isothioureas and Carboxylic Acid Derivatives
pp. 1
Fragments O—C—C and P—C
pp. 1
By Hydrolysis of 5-(Phthalimidoethyl)selenazol-2-amine
pp. 1
From 1-Phenyl-2-[2-(trichloro-λ-tellanyl)phenyl]diazene
pp. 1
From -Arylthioamides
pp. 1
From β-Cyano- or β-Nitroenamines and Thiocyanogen
pp. 1
With Chlorocarbonylsulfenyl Chloride
pp. 1
By Formation of One S—N and One C—C Bond
pp. 1
Condensation Reactions
pp. 1
Synthesis by Ring Transformation
pp. 1
From Carbene Complexes and Phosphaalkynes
pp. 1
Addition of Organic Groups
pp. 1
By Oxidative Cyclization of 2-Hydroxyaryl Ketoximes
pp. 1
1-Oxa-6,6aλ-dithiapentalenes
pp. 1
Synthesis by Ring Transformation
pp. 1
From 3-[2-(Dimethylamino)vinyl]-1,2-dithiolium Salts
pp. 1
Replacement of a Nitrogen Substituent by Oxygen or Sulfur
pp. 1
Synthesis by Substituent Modification
pp. 1
Addition of Heteroatoms
pp. 1
From α-Acyloxy Ketones and an Ammonia Source
pp. 1
Modification of Carbofunctional Substituents
pp. 1
Synthesis by Ring Closure from 2-Seleno-Substituted Anilines and a Carboxylic Derivative
pp. 1
By Formation of One Se—N Bond
pp. 1
With Dithioimidocarbonates
pp. 1
Synthesis by Substituent Modification
pp. 1
Synthesis of Nitroisoxazoles from Propargyl Bromides and Sodium Nitrite
pp. 1
From Alkynones, Hydroxylamine -Sulfonic Acid, and Selenium
pp. 1
Fragment C—N—C—C—S
pp. 1
Modification of Substituents
pp. 1
Nitration
pp. 1
2,5-Dihydrothiazoles
pp. 1
With Thioamides
pp. 1
By Formation of One Te—N and One N—C Bond
pp. 1
From Alk-1-ynyl Thiocyanates
pp. 1
Rearrangement of Substituents
pp. 1
Cyclization of 2-Nitrobenzyl Derivatives
pp. 1
Of a Pyrido[2,3] System
pp. 1
From -(Tosylmethyl)imines and Aldehydes
pp. 1
1,2-Ditellurolium Salts
pp. 1
1,6,6aλ-Trithiapentalenes
pp. 1
Abstraction of a Hydride Ion
pp. 1
From 4-Pyran- or 4-Thiopyran-4-thiones
pp. 1
Cyclization of Anilides of 2-Isocyanoalkanoic Acids
pp. 1
By Formation of One O—C and One Se—C Bond
pp. 1
6,6aλ-Dithia-1,2-diazapentalenes
pp. 1
Fragments C—N—C and C—O
pp. 1
Via Substitution of an Amino Substituent: From -(2-Oxoalkyl) Thiocarboximidium Salts in the Presence of Aldehydes
pp. 1
Oxidation of 1,3-Dithiole-2-thiones with Hydroperoxides
pp. 1
From 2,2-Bis(sulfanyl)ethene-1,1-dicarbonitriles or 2-Substituted 2-Aminoethene-1,1-dicarbonitriles and Hydrogen Sulfide
pp. 1
Modification of Existing Substituents
pp. 1
Fragments O—C—C—N and C
pp. 1
1,3-(Benzo)Diselenolium Salts
pp. 1
1,2-Benzisothiazoles
pp. 1
From 2-Phosphinophenols
pp. 1
2-(2-Furyl)-, 2-(2-Thienyl) -, 2-(Selenophen-2-yl)-, 2-(2-Pyridyl)-, and -Ribofuranosylselenazoles
pp. 1
With Aldehydes
pp. 1
Alkaline Splitting of (2,5-Diphenylselenazol-4-yl)phosphonium Perchlorate
pp. 1
By Addition of Thiazyl Chloride to Alkenes
pp. 1
Replacement of a Nitrogen Substituent by Carbon
pp. 1
By Halogen
pp. 1
Cyclization of Phenacylnitrones
pp. 1
Replacement of Silyl or Mercuro Groups by Hydrogen
pp. 1
From -Thiocarbonyl α-Amino Acids and Derivatives
pp. 1
From 3-Amino-1-phenylprop-2-enethiones
pp. 1
Ionization of 2,2-Dichloro-1,3-benzodioxole
pp. 1
Annulated 1,3-Oxathiolium Salts
pp. 1
Aromatization of Hydro-1,2-benzisoxazoles
pp. 1
By Formation of One Se—N and One Se—C Bond
pp. 1
In Situ Formation from Amides
pp. 1
Fragments S—C—C—N and C
pp. 1
From 3-1,2-Dithiol-3-ones or 3-1,2-Dithiole-3-thiones
pp. 1
From 3-Amino-1,2-dithiolium Salts
pp. 1
From α-Thiocyanato Carboxylic Acids and Derivatives
pp. 1
From -(2-Oxoalkyl) Thiocarboxylates
pp. 1
Replacement of Hydrogen by Mercury
pp. 1
From β-Amino α,β-Unsaturated Esters or Ketones and Sulfanylacetic Acid Derivatives
pp. 1
Cyclocondensations of 2-(Aroylsulfanyl)acetic Acids
pp. 1
1,2-Benzisoselenazoles from 1-Benzoselenophene-2,3-dione
pp. 1
From Dialkyl Cyanodithioimidocarbonates or -Alkyl ′-Cyanoimidothiocarbamates
pp. 1
From (Diaminomethylene)thioureas and α-Halo Ketones
pp. 1
By Hydrogen and by Metals
pp. 1
From Sulfanyl-Substituted Alkenones
pp. 1
Reactions at the α-Methyl Group
pp. 1
From α-Azido Ketones
pp. 1
From Tetrahydrodibenzo-1,6,3,8-dithiadiazecines
pp. 1
Fragments N—C—C—Se and C
pp. 1
By Formation of Two Se—C Bonds
pp. 1
Replacement of Oxygen or Sulfur Substituents by Nitrogen
pp. 1
From 2,1-Benzisoxazoles
pp. 1
By Formation of One S—C Bond
pp. 1
Condensation of 5-Methylisoxazoles with Aldehydes
pp. 1
With Oxiranes
pp. 1
From β-Thiocyanatoenamines
pp. 1
Substitution of a Methylsulfanyl Group in 2-(Methylsulfanyl)-1,3-oxathiol-1-ium-4-olate
pp. 1
1,3-(Benzo)Thiaphospholes
pp. 1
From 3-(4-Aminothiazol-5-yl)-3-oxopropanoates
pp. 1
By Cyclization of 2-Haloaryl Ketoximes
pp. 1
Ring Transformation
pp. 1
From α-(Aroylamino) Thioketones
pp. 1
With -Chloromethylenamines
pp. 1
Cyclization of 2-Nitrosoaryl Ketones
pp. 1
By Reaction with Ethyl Azidoacetate
pp. 1
By Sulfur Functionalities
pp. 1
From Acylcarbenes and Nitriles
pp. 1
By Retro-Diels–Alder Reactions
pp. 1
From -Vinylimines
pp. 1
With Phosgene
pp. 1
Fragments C—C—S and C—N
pp. 1
From Thioacids or Dithioacids and α-Substituted Ketones
pp. 1
Cyclocondensation of {[(Methylsulfanyl)carbonothioyl]oxy}(phenyl)acetic Acid
pp. 1
Fragment C—C—N—C—S
pp. 1
From 2-Aminophenols or 2-Fluoroanilines,Aryl Iodides, and Carbon Monoxide
pp. 1
Protonation
pp. 1
From 3-[Dibromo(methyl)-λ-tellanyl]prop-2-enals and Ammonia
pp. 1
Reduction of 2-Nitroaryl Carbonyl Compounds
pp. 1
From 2-Phosphinobenzenethiols
pp. 1
From Alkali Salts of Cyanothioureas or Cyanocarbothioamides and "Acidic" Methyl Halides
pp. 1
Oxidation of Methyl-Substituted Isoselenazoles
pp. 1
Oxidation and Decarboxylation of 2,4-Dimethylselenazoles
pp. 1
Reaction of a 5-Chloroisoxazole with Sodium Azide
pp. 1
By Formation of One S—C Bond
pp. 1
Alkylation of 1,3-Thiaselenole-2-thiones
pp. 1
Mesoionic and Zwitterionic 1,2-Dithiolium Salts
pp. 1
Formation of Complexes
pp. 1
By Formation of One N—C Bond
pp. 1
By Intramolecular Dehydration of 2-Hydroxyaryl Ketoximes and Aldoximes
pp. 1
From 1,4-Quinones and Thiocarboxylic Acid (or Thiourea) Derivatives
pp. 1
By Formation of One S—C and One N—C Bond
pp. 1
From 4-Amino-Substituted Thiazoles and Acetoacetates
pp. 1
Of Carbon Functionalities
pp. 1
Using 2-Thiocyanatoanilines
pp. 1
Of Heteroatoms
pp. 1
From Ditellurides via 1,2,5-Oxatellurazoles
pp. 1
By Formation of One O—C and One N—C Bond
pp. 1
1,6-Dioxa-6aλ-selenapentalenes
pp. 1
Elimination of an Ethoxy Group from a 2-Ethoxy-1,3-benzoxathiole
pp. 1
Replacement of Lithium, Magnesium, or Zinc by Carbon Electrophiles
pp. 1
Of Carbon Functionalities
pp. 1
To a Disubstituted Isoxazole
pp. 1
From α,β-Unsaturated Ketones and Aminothiocarbonyl Compounds
pp. 1
By Formation of One S—S and One C—C Bond
pp. 1
Modification of Substituents
pp. 1
Elimination of a Methoxy Group from 2-Methoxy-1,3-benzodioxoles and Related Systems
pp. 1
Substitution of Existing Substituents
pp. 1
Thiazoles from ,-Bis[amino(aryl)methyl]ethanedithioamides
pp. 1
By Formation of One S—C Bond
pp. 1
Cyclization of 1-(Carboxymethyl)pyridin-2(1)-one
pp. 1
N-Dealkylation of 2-Alkylisothiazolium Salts
pp. 1
By Formation of One O—S and One O—C Bond
pp. 1
Extended Structures Based on the 1,2-Dithiolium System
pp. 1
With Trifluoromethyl(het)arenes
pp. 1
Cyclocondensation of Substituted Acetic Acids
pp. 1
Fragment O—N—C—C—C
pp. 1
Of a Pyrido[3,2] System
pp. 1
By Formation of Three Heteroatom—Carbon Bonds
pp. 1
Reaction of 1,3-Dithiolium Salts with Azides
pp. 1
Sulfonation
pp. 1
Formation of Thiazole 3-Oxides
pp. 1
Fragments C—C—N—C and S
pp. 1
Cyclization of ,′-Diaroyl-1,2-bis(1-benzotriazol-1-yl)ethane-1,2-diamines
pp. 1
Thiocyanation
pp. 1
N-Protonation of a 1,3-Benzoxathiol-2-imine
pp. 1
Cyclocondensation of α-Bromo Ketones with Tetramethylselenourea
pp. 1
By Cyclization of ,2-Dihydroxybenzamides
pp. 1
Reactions with Enols and Enolates
pp. 1
Of the Benzene Unit
pp. 1
From Isatoic Anhydride
pp. 1
From α,β-Unsaturated Carboxylic Acid Derivatives and Aminothiocarbonyl Compounds
pp. 1
To a Monosubstituted Isoxazole
pp. 1
1,2-Diselenolium Salts
pp. 1
Substitution by Formylation
pp. 1
By Carbon Functionalities
pp. 1
From 2-Sulfanylalkanoic Acids or Derivatives and Nitriles
pp. 1
Fragments C—Se—C—C and P
pp. 1
From Dipotassium Cyanodithioimidocarbonate and Functionalized Methyl Halides
pp. 1
From Difluoro-λ-sulfanes
pp. 1
From 1,3,4-Selenadiazines
pp. 1
2-Unsubstituted -Arylthioureas
pp. 1
Reactions of Metalated Oxazoles with Electrophiles
pp. 1
By Formation of Two S—S and One S—C Bond
pp. 1
From 2-Oxoalkyl N,N-Disubstituted Dithiocarbamates
pp. 1
By Cyclization of 2-Hydroxyaryl Aldoxime -Sulfonates
pp. 1
From 3-Thiocyanatoprop-2-enals
pp. 1
Isothiazole-5-carboxylic Acids, 5-carbaldehydes, and 5-Alkylisothiazoles from Isothiazol-5-yllithiums
pp. 1
From N,N-Disubstituted Dithiocarbamates
pp. 1
From (Ethoxycarbonylmethyl)imidodithiocarbonate or Ethyl {[1-(Methylsulfanyl)alkylidene]amino}acetates
pp. 1
Using Hypervalent Iodine Compounds
pp. 1
Oxazole 3-Oxides from Monooximes of α-Diketones and Aldehydes
pp. 1
Generation of α-Sulfanyl Ketones from -2-Oxoalkyl Dithiocarbonates
pp. 1
From -Acylthioureas and "Acidic" Methyl Halides
pp. 1
From 2-Azirines or Aziridines
pp. 1
Elimination of HX from Dihydroisoxazoles
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
From -(Chloromethylene)imidamidium Salts and Sulfanylacetates or Sulfanylacetone
pp. 1
By Thermal and Base-Catalyzed Cyclization of 2-Hydroxyaryl Ketoxime and Aldoxime -Acylates
pp. 1
Nitration
pp. 1
By Formation of Two Heteroatom—Carbon Bonds and One C—C Bond
pp. 1
From 3-Oxo- or 3-Hydrazinoprop-1-enyl Thiocyanates
pp. 1
Carbon Replacement by Hydrogen
pp. 1
Synthesis by Ring Transformation
pp. 1
From 2-Sulfanylphenol and Dichloro--dimethylmethaniminium Chloride
pp. 1
Exchange of Anions
pp. 1
From Acyloxiranes and Aminothiocarbonyl Compounds
pp. 1
Aromatization by Addition of Iodomethane and Elimination of Trimethylamine
pp. 1
By Formation of One O—S and One N—C Bond
pp. 1
Of Oxygen Functionalities
pp. 1
From Selenoureas and 3,4,6,7-Tetrachloro-2,3-dihydro-2,5-benzofurandiol
pp. 1
Fragments O—C—C and C—N
pp. 1
By Cyclization of 2-Nitroaryl Ketoximes
pp. 1
Fragments O—N—C—C and C
pp. 1
Condensation in the Side Chain by Carbon Disulfide and Thioformamides
pp. 1
Cyclization of α-Acylamino Carboxylic Acids and Their Derivatives
pp. 1
Alkylation of Saccharins
pp. 1
Fragments C—S—C and N—C
pp. 1
From Isothiazolamines via Diazonium Salts
pp. 1
With Carbon Disulfide and Sulfur
pp. 1
By Formation of Two S—C Bonds and One N—C Bond
pp. 1
Addition of Heteroatoms
pp. 1
From α-Functionalized Carbonitriles and Aminothiocarbonyl Compounds
pp. 1
Fragments C—C—C and N—O
pp. 1
Of Hydrogen
pp. 1
1,3-(Benzo)Dithiolium Salts
pp. 1
Via Substitution of a Sulfur Substituent: From -(2-Oxoalkyl) Dithiocarbamates
pp. 1
Addition Reactions
pp. 1
2-Fluoroselenazoles and Selenazol-2-ols
pp. 1
Oxidative Cyclization of -(2-Hydroxyphenyl)thiobenzamides
pp. 1
1,2-Benzisotellurazoles
pp. 1
From Desyl Chloride and Alkyl or Aryl Thiocyanates
pp. 1
From 2-Unsubstituted (Het)arenamines or Derivatives and a Sulfur Component
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Substitution of the 4-Olate by a 4-Thiolate Group in 2-(Dialkylamino)-1,3-oxathiolium-4-olates
pp. 1
By Formation of One Heteroatom—Carbon Bond
pp. 1
By Formation of One O—S Bond
pp. 1
Rearrangement Reactions in the Side Chain
pp. 1
By Carbon Functionalities
pp. 1
From Sulfinimidic Acids or Sulfoximides
pp. 1
Of Nitrogen Functionalities
pp. 1
Synthesis from Other Thiazoles
pp. 1
Introduction of Nucleophiles
pp. 1
From 1,4-Quinones and Thiocarboxylic Acids or 4-(Arylthioyl)morpholines
pp. 1
From 1,2-Benzothiazoles
pp. 1
From Dimethyl -(Ethoxycarbonylmethyl)dithioimidocarbonate and -Phenyl Thioesters
pp. 1
From α-Bromo Ketones and Arenethiocarboxamides
pp. 1
Condensation of 2-Nitroaryl Aldehydes with Electron-Rich Arenes
pp. 1
From 2-Nitrophenylmethanethiols or 2-Nitrobenzenecarbothioamides
pp. 1
Rearrangement during Transmetalation Reactions
pp. 1
From Dianions Derived from Oximes
pp. 1
Annulation of an Arene Ring
pp. 1
From N-Functionalized α-Aminonitriles
pp. 1
Fragment N—Arene—Se—C
pp. 1
3-[(3-1,2-Dithiol-3-ylidene)methyl]-1,2-dithiolium Salts
pp. 1
Generation of α-Sulfanyl Ketones from Their Dimers
pp. 1
By Thermal Cyclization of -Hydroxy-2-hydroxyarenecarboximidamide Derivatives
pp. 1
Electrophilic Substitution
pp. 1
Heterapentalenes Related to the 1,2-Dithiolium System
pp. 1
With Derivatives of Cyanamides
pp. 1
Rearrangement of Substituents
pp. 1
From 4-Hydroxy-1,2-dithiolium Salts
pp. 1
Selenazol-2-amines and 2-(Alkylamino)- and 2-(Arylamino)-Substituted Selenazoles
pp. 1
By Formation of One S—C Bond
pp. 1
Rearrangement of -3-(Aryltellanyl)propenoyl Chlorides
pp. 1
Use of the Nitrosonium Ion as the N—O Component
pp. 1
N-Alkylation and the Synthesis of 2-Alkylisothiazolium Salts
pp. 1
From 2-Thiocyanatoanilines
pp. 1
Sulfonation
pp. 1
Nucleophilic Substitution of (5-Chloroselenazol-4-yl)triphenylphosphonium Perchlorates
pp. 1
Sulfonation
pp. 1
By Formation of One Heteroatom—Carbon Bond and One C—C Bond
pp. 1
Of Metals
pp. 1
By Formation of One O—C and One S—C Bond
pp. 1
From Polyhalo-Substituted Propenes
pp. 1
Dehydrogenation with γ-Manganese(IV) Oxide
pp. 1
By Annulation to an Arene or Hetarene Ring
pp. 1
Modification of Substituents
pp. 1
Fragments P—C—C—O and C
pp. 1
From S,S-Disubstituted Dithiooxaldiimidates and Aldehydes
pp. 1
Replacement of Hydrogen by Lithium, Sodium, or Potassium
pp. 1
Fragments S—C—C—S and C
pp. 1
Hetero-Ring Size Retained Overall
pp. 1
Beckmann Rearrangement of Aryl Selenazol-2-yl Ketoximes
pp. 1
From Aroylthioamides, Aldehydes, and Iodomethane
pp. 1
From Alkali Cyanides and Hydrogen Sulfide
pp. 1
By Ring Contraction
pp. 1
Simple 1,2-Dithiolium Salts
pp. 1
Fragment N—C—C—O—C
pp. 1
Halogenation
pp. 1
Reaction of α-Diazo Ketones with -Carbonylmethaniminium Salts
pp. 1
Fragments C—C—N—C and Se
pp. 1
Dehydrogenation with -Bromosuccinimide and Base
pp. 1
By Reactions of Hydroxylamine with 1,3-Diketones
pp. 1
From α-(Thioacylamino)carbothioamides
pp. 1
Condensation of 2-Methylbenzoselenazole with Aldehydes
pp. 1
From 2-Isocyanoacrylates
pp. 1
By Decomposition of 1,3,2,4-Dioxathiazole 2-Oxides
pp. 1
From 2-(Hydroxyamino)benzonitriles
pp. 1
Replacement of Halogen by Deuterium
pp. 1
From 1,2,3-Selenadiazoles and Phosphaalkynes
pp. 1
From Cyclocondensations of -(2,5-Dihydroxyaryl) Thioesters or Thiocarbamate Derivatives
pp. 1
1,6aλ-Dithia-6-azapentalenes
pp. 1
From 1,3-Dichloroacetone
pp. 1
By Formation of Two P—C Bonds
pp. 1
Synthesis of Isoxazolamines by Reactions of Hydroxylamine with 3-Oxonitriles
pp. 1
1,6-Dioxa-6aλ-thiapentalenes
pp. 1
Reaction of 2-Chloro-1,3-dithiolium Salts with Arenesulfinates
pp. 1
Alkylation of 3-1,2-Dithiol-3-ones and 3-1,2-Dithiole-3-thiones
pp. 1
Of Heteroatoms
pp. 1
From an Enamine and Selenium Dioxide
pp. 1
By Formation of One O—S, One S—S, and One N—C Bond
pp. 1
From 1,3-Diselenoles
pp. 1
2-[(3-1,2-Dithiol-3-ylidene)methyl]-1,6,6aλ-trithiapentalenesand Related Systems
pp. 1
From -(2-Carboxyalkyl) Dithiocarboxylates
pp. 1
By Reactions of Hydroxylamine with α,β-Unsaturated Nitriles
pp. 1
From Bis(2-aminophenyl)methane
pp. 1
Aromatization
pp. 1
Cyclocondensation of α-Bromo Ketones with N,N-Disubstituted Selenoamides
pp. 1
Synthesis of Isoxazolamines by Reactions of Hydroxylamine with α,β-Acetylenic Nitriles
pp. 1
By Formation of One Te—C Bond
pp. 1
Fragments C—C—S—C and N
pp. 1
From 1,3-Dioxo Compounds and Diacetyl Disulfide
pp. 1
From -(1-Cyanoalkyl) Dithiocarboxylates
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
From 2-Substituted (Het)arenamines or Derivatives and a Sulfur Component
pp. 1
By Formation of One S—S and Two S—C Bonds
pp. 1
Synthesis by Ring Transformation
pp. 1
Introduction of Chlorosulfonyl, Sulfo, or Thiocyanato Groups
pp. 1
By Oxidative Addition of α-Methylene Ketones to Nitriles
pp. 1
Oxidation of 2-Methyl-1,3-benzoselenazole
pp. 1
Alkylation
pp. 1
From Propynones and Hydroxylamine -Sulfonic Acid
pp. 1
By Decomposition of 1,4,2-Dioxazol-5-one
pp. 1
Fragment C—S—C—C—N
pp. 1
From 3-Oxoprop-1-ene-1-tellurenyl Bromides and Ammonia
pp. 1
Substitution of Existing Substituents
pp. 1
Fragments N—Arene—Se and C
pp. 1
Cyclization of α-Acylamino Nitriles
pp. 1
Annulation of a Six-Membered Hetarene
pp. 1
By Formation of One S—C Bond
pp. 1
Hydrolysis of 3-Chloroisoselenazolium Salts
pp. 1
Fragments Arene—N—C and Se
pp. 1
Reaction of 2-(Alkylsulfanyl)-1,3-dithiolium Salts with Amines
pp. 1
From 2-(Ethylsulfanyl)-1,4,3-thiaselenazines
pp. 1
By Formation of Two Heteroatom—Carbon Bonds
pp. 1
Nucleophilic Substitution
pp. 1
Reactions of Oxime-Derived Dianions with Esters
pp. 1
From (2-Lithio-1-pyrrol-1-ylethynyl)lithium and Selenium
pp. 1
By Formation of One S—S and One S—C Bond
pp. 1
From -(2-Aminohetaryl) Dithiocarbamates
pp. 1
Introduction of Arylazo Groups
pp. 1
From α-Halo-β-thiocyanatoalkenes
pp. 1
1,3-(Benzo)Thiaselenolium Salts
pp. 1
From Ketene ,-Acetals and Phosphorus Trihalides
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