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Five-Membered Hetarenes with Three or More Heteroatoms
From 2-Diazo-3-oxoaldehydes and Amine Derivatives
other
Author(s):
A. C. Tomé
Publication date
(Online):
2004
Publisher:
Georg Thieme Verlag KG
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Author and book information
Book Chapter
Publication date (Print):
2004
Publication date (Online):
2004
Page
: 1
DOI:
10.1055/sos-SD-013-00633
SO-VID:
ffb50349-973f-414e-a21b-1a86e885aa8e
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Book chapters
pp. 1
From 4,6-Diethoxypyrimidines
pp. 1
By Sulfur
pp. 1
By Formation of One S—C Bond
pp. 1
Formation of Bis(η-Complexes)
pp. 1
By Formation of One N—N and One O—C Bond
pp. 1
By Formation of Two C—S Bonds
pp. 1
From Hydrazones of Carboxylic Acid Chlorides
pp. 1
Addition of Azides to Allenes
pp. 1
Cyclization of 2-Aminoazobenzenes
pp. 1
By Formation of Two O—S or Two S—S Bonds
pp. 1
N-Alkylation
pp. 1
Reaction of Aldehydes with Hydrazine and Sulfur
pp. 1
Synthesis from Alkynes with Sulfur
pp. 1
1,2,3,4-Oxatriazol-3-ium-5-olates from Nitromethide Anions and Arenediazonium Ions
pp. 1
Fragments S—C—N—N and C
pp. 1
Cyclization of α-Hydroxyimino Hydrazones
pp. 1
Of Carbon Functionalities
pp. 1
Thiazolo[2,3-][1,2,4,3]triazaphospholes and [1,2,4,3]Triazaphospholo[1,5-]pyridines
pp. 1
Addition of Azidotrimethylsilane and Azidotributylstannane to Alkynes
pp. 1
From Thiohydrazides and Nitrous Acid
pp. 1
Synthesis of Amino-Substituted 1,6,6aλ-Trithia-3,4-diazapentalenes by Nucleophilic Substitution
pp. 1
Of Organometallic Groups
pp. 1
1,2,3,4-Oxatriazol-3-ium-5-thiolates from Hydrazinium Dithiocarbazates and Nitrous Acid
pp. 1
Annulated 1,2,5-Thiadiazoles (2,1,3-Benzothiadiazoles and Related Systems)
pp. 1
Fragments C—N—C—S and N
pp. 1
By Annulation to 1,2,5-Thiadiazole
pp. 1
5-Aryl-2-(methylsulfanyl)-1,6,6aλ-trithia-3,4-diazapentalenes from 1,3,5-Triazinium Salts and Hydrogen Sulfide
pp. 1
From Acylamidrazones
pp. 1
One-Electron Reduction
pp. 1
1,2,3,5-Thiatriazolidin-4-one 1-Oxides from Semicarbazides and Thionyl Chloride
pp. 1
Nitration and Reduction of an Aryltellurium Trichloride
pp. 1
Cyclocondensation of a 2-Phosphaallylic Cation with Hydroxylamine
pp. 1
Cyclocondensation of 2-Amino Ketones or 2-Aminophenols with Phosphorus(III) Compounds
pp. 1
Of Carbon
pp. 1
Fragments C—N, C—N, and S
pp. 1
From 2,3-Diazabuta-1,3-dienes and a Sulfur Source
pp. 1
Substitution of Existing Substituents
pp. 1
By Sulfur-Containing Groups
pp. 1
Fragments P—N—C and N—N
pp. 1
Hurd–Mori Synthesis
pp. 1
1,2,3,5-Oxatriazoles
pp. 1
By Heteroatoms
pp. 1
1,3,2-Benzodiselenatelluroles
pp. 1
By Dehydrogenation
pp. 1
Reactions with Tellurium Tetrahalides
pp. 1
Fragments C—N—N, C, and N
pp. 1
By Formation of One N—N Bond
pp. 1
From Diazoalkanes and Ketenimines
pp. 1
1,2,5-Selenadiazoles
pp. 1
By Formation of Two N—P Bonds
pp. 1
Reaction of Amidinium Salts with Sulfur Dichloride and 1,8-Diazabicyclo[5.4.0]undec-7-ene
pp. 1
Reaction of 1,2-Dioximes with Selenium Compounds
pp. 1
From Tetrazoles
pp. 1
From α-Diazo Ketones and Amines
pp. 1
Reaction of Selenobenzamides with Hydrazine Hydrate
pp. 1
By Formation of Two S—N Bonds and One C—C Bond
pp. 1
From Enaminones and Diazo Transfer Reagents
pp. 1
Synthesis by Substituent Modification
pp. 1
Substitution of Diazonium Groups by Nucleophiles
pp. 1
Synthesis from a 2,3,4-Triphosphapentadienide Anion
pp. 1
Nitration
pp. 1
By Formation of One S—P and Three P—C Bonds
pp. 1
By Formation of One Te—O and One N—C Bond
pp. 1
Wolff's Synthesis
pp. 1
5-Substituted 1,2,3,4-Thiatriazolium Salts by Alkylation of 1,2,3,4-Thiatriazoles, 1,2,3,4-Thiatriazol-3-ium-5-olates, and 1,2,3,4-Thiatriazol-3-ium-5-aminides
pp. 1
Addition of Azides to α-Acylphosphorus Ylides
pp. 1
Of Halogen
pp. 1
One-Electron Oxidation
pp. 1
Of Other Functions
pp. 1
Cyclization of 2-Nitrophenylhydrazines
pp. 1
Using -Bromosuccinimide
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Fragment O—C—C—N—N
pp. 1
By Fluorine at Carbon
pp. 1
Fragments N—N—C and P—P
pp. 1
Synthesis of -Mesityl-Substituted Triazolium Salts
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
From Hydrazinesulfonamides and Base
pp. 1
Fragments N—N—C, S, and C
pp. 1
Addition Reactions
pp. 1
Substitution of Hydrogen
pp. 1
Monocyclic 1,4,2-Diazaphospholes
pp. 1
Symmetrical 3,5-Diaryl-1,2,4-dithiazolium Salts
pp. 1
Unsymmetrically Substituted 3,5-Diaryl-1,2,4-dithiazolium Salts from the Oxidative Cyclization of Thiobenzamides
pp. 1
From -(Dicyanovinyl)amidoximes
pp. 1
Using a Phosphaalkene and 1,3,4-Oxathiazol-2-one
pp. 1
By Reaction with Thiocarbonyl Compounds
pp. 1
Via -Acylamidoximes
pp. 1
Synthesis from 1,2,3-Oxadiazoles
pp. 1
Intramolecular Cyclization of Iminomethyl Dithiocarbamates
pp. 1
Fragment N—C—O—N—C
pp. 1
Dehydration Using Polyphosphoric Acid
pp. 1
From Oximes
pp. 1
Decarboxylation
pp. 1
By Formation of One N—C and One P/As—C Bond
pp. 1
Alkynylation
pp. 1
Alkyl Groups
pp. 1
Monocyclic 1,3,2-Oxathiazoles
pp. 1
By Formation of Two N—C Bonds
pp. 1
From Ketene ,-Acetals
pp. 1
Of Carbon
pp. 1
By Formation of One Se—Se and Two Se—C Bonds
pp. 1
From an Amidoxime and an Anhydride
pp. 1
Synthesis by Oxidation of Dithiobiurets Formed In Situ
pp. 1
Reactions of 1,3,2-Benzodithiastannoles with Thionyl Chloride
pp. 1
Reaction of Azides with 1,3-Diketones, 3-Oxo Esters, or 3-Oxoamides
pp. 1
By Formation of Two S—C and Two N—C Bonds
pp. 1
Substitution of Existing Substituents
pp. 1
By Formation of One O—C and One N—C Bond
pp. 1
Synthesis by Substituent Modification
pp. 1
Fragments C—C—N—P and P
pp. 1
By Formation of One N—P and One P—C Bond
pp. 1
N-Acylation
pp. 1
By Heteroatoms
pp. 1
By the Elimination of HX or YX
pp. 1
Fragments N—C—S and N—C
pp. 1
Reaction of 1,2-Diaminoarenes with Selenium Dioxide
pp. 1
Reaction of a 6,7-Dihydro-1,2,3-benzoselenadiazole with Selenium
pp. 1
Fragments P—C—P and N—N
pp. 1
By Formation of One O—N and One N—C Bond
pp. 1
1,4,2-Diazaphospholo[4,5-]pyridines and Related Systems
pp. 1
Fragment S—C—N—N—C
pp. 1
Reaction in Diazabicycloundecene
pp. 1
Fragments P—P—P—P and C
pp. 1
By Formation of One N—N and One N—C Bond
pp. 1
Reductive Cyclization of a Phosphaalkyne with Lithium Bis(trimethylsilyl)arsenide
pp. 1
By Formation of Two S—S and Three S—C Bonds
pp. 1
From -Alkylpyrroles
pp. 1
Synthesis by Ring Transformation
pp. 1
Fragments O—C—C—N and P
pp. 1
5-Chloro-1,2,3,4-thiatriazole from Thiophosgene and Sodium Azide
pp. 1
Reactions of 1,3,2-Benzodithiastannoles with Sulfur Dichloride
pp. 1
2,1,3-Benzoxadiazoles (Benzofurazans) and Other Annulated 1,2,5-Oxadiazoles
pp. 1
Rearrangement of Oxadiazoles and Isoxazoles
pp. 1
1,2,3-Benzotriselenoles
pp. 1
Oxidation of 5-Phenyl-1,2,3,4-thiatriazole
pp. 1
Dimroth Rearrangement
pp. 1
Addition Reactions
pp. 1
[4 + 1] Cyclocondensation with Phosphorus Trichloride
pp. 1
By 1,3-Dipolar Cycloaddition of Alkyl Azides with -Aryl--phosphinidyneammonium Ions
pp. 1
Formal Exchange of Ring Members with Retention of Ring Size
pp. 1
C-Alkylation
pp. 1
Reaction of Cyanothioiminocarbonates with Chloramine
pp. 1
From Phenols and Related Compounds and Tetrasulfur Tetranitride
pp. 1
Synthesis by Ring Transformation
pp. 1
Fragments O—N—C and N—C
pp. 1
Fragments N—N—N and C—N
pp. 1
Iodine Oxidation of Aromatic Selenoamides
pp. 1
Reaction of an α-Aminohydrazone with a Trialkyl Orthoformate
pp. 1
By Formation of One Te—P, One Te—C, and One P—C Bond
pp. 1
1,2,3-Benzoselenadiazoles
pp. 1
Mesoionic 1,3,2-Dithiazol-4-ones by Oxidation of 1,3,2-Dithiazole-4-thiones
pp. 1
Fragments N—N—N and P—C
pp. 1
Reaction of an -Benzoylselenourea Nickel Complex with Diphosgene
pp. 1
From Benzene-1,2-diamines and Nitrous Acid
pp. 1
Reaction of Diacyl Diimides with Carbenes
pp. 1
From Enamines
pp. 1
1,2,4-Oxazaphospholes
pp. 1
Fragments C—P/As—C and N—N
pp. 1
1,2,4-Dithiazolium Salts by Oxidation of Dithiobiurets (Dithioimidodicarbonic Diamides)
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
By Annulation to the Heterocyclic Ring
pp. 1
Fragment N—C—N—N—N
pp. 1
Fragments N—C—N—C and P
pp. 1
Cyclization Using Carbon Disulfide
pp. 1
Modification of Existing Substituents
pp. 1
By Formation of Two Se—Se Bonds
pp. 1
Azo Coupling
pp. 1
Fragments N—N—N and N—P
pp. 1
By Using Nitrenes Derived from -Acylamidrazones
pp. 1
By Formation of Two N—C Bonds
pp. 1
Ring Contraction
pp. 1
Reaction of an Aryl Isoselenocyanate with Diazomethane
pp. 1
Synthesis by Substituent Modification
pp. 1
Synthesis by Ring Transformation
pp. 1
Synthesis by Substituent Modification
pp. 1
Monocyclic 2-Substituted 1,2,3-Triazoles
pp. 1
Fragments N—C—N—N and N
pp. 1
From 1,2-Diimines and Related Compounds
pp. 1
Reactions of Nitrogen Substituents
pp. 1
Trithiadiazapentalenes by Oxygen–Sulfur Exchange Reactions
pp. 1
Substitution of Halogens by Nucleophiles
pp. 1
From 4-Imino-3,4-dihydropyrimidines
pp. 1
From Diazoalkanes and Aryl Cyanates
pp. 1
By Carbon
pp. 1
By Other Heteroatoms
pp. 1
1,2,5-Azadiphospholes
pp. 1
By Formation of One Te—N and One N—C Bond
pp. 1
Dehydration Using Tosyl Chloride
pp. 1
From an Amidoxime and a Carboxylic Acid Ester
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
N-Alkylation of 2,5-Dihydro-1,2,3,5-thiatriazole 1,1-Dioxides
pp. 1
Addition of Sulfonyl Azides to Alkynes
pp. 1
By Hydrogen
pp. 1
By Formation of Two P—C Bonds
pp. 1
N-Acylation
pp. 1
Synthesis of Metal Pentaphospholides from Phosphorus and an Alkali Metal Phosphide
pp. 1
From Isoxazoles
pp. 1
1,3,4-Oxathiazolium Salts
pp. 1
Smiles Rearrangement
pp. 1
Fragments C—N—N—C and S
pp. 1
N-Functionalization by Electrophiles
pp. 1
Appel's Salt from Acetonitrile and Sulfur Monochloride
pp. 1
By Formation of Two S—Se Bonds
pp. 1
Fragments S—C—C—S and N
pp. 1
Monocyclic 1,2,3-Dithiazoles
pp. 1
Isomerization of 4-(Arylazo)-2,1,3-benzoxadiazoles
pp. 1
Synthesis by Ring Transformation
pp. 1
Of Hydrogen
pp. 1
Sulfonylation
pp. 1
Fragments C—N—N and C—N
pp. 1
From α-Diazocarbonyl Compounds
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Use of Stoichiometric Metal–Sulfur Complexes
pp. 1
N-Substituted 1,2,3,4-Thiatriazol-5-amines from Substituted Tetrazole-5-thiols
pp. 1
From Isocyanates, Isothiocyanates, or Carbodiimides
pp. 1
By O/P Exchange
pp. 1
Fragments N—C—C—N and S
pp. 1
Synthesis by Double-Cyclization Reactions
pp. 1
Fragments S—C, C, and Two P Fragments
pp. 1
Reaction Using a One-Pot Protocol
pp. 1
1,2,3,4-Oxatriazol-3-ium-5-olates from (Arylhydrazono)methanedisulfonates and Nitrous Acid
pp. 1
Substitution of Existing Substituents
pp. 1
Fragments C—S—C—N and P
pp. 1
From 1,2,4-Oxadiazoles
pp. 1
From Amides
pp. 1
Diazapentalenes by Oxygen–Sulfur Exchange Reactions of 3-Acylimino-3-1,2,4-oxathiazoles and 3-Acylimino-3-1,2,4-Dithiazoles with Phosphorus Pentasulfide
pp. 1
Of Phosphaalkynes and Nitrilimines
pp. 1
Modification of Substituents
pp. 1
By Sulfur
pp. 1
From Activated Methylene Compounds
pp. 1
By Formation of One S—N Bond
pp. 1
By Ring Contraction
pp. 1
By Formation of One Se—N and One C—C Bond
pp. 1
Heterapentalenes from 1,2,3,4-Thiatriazol-5-amine and -Aryl Chlorothioformates
pp. 1
From Amidrazone Hydrochlorides and Phosphorus Pentachloride
pp. 1
Addition Reactions
pp. 1
From Acylhydrazines and Carboxylic Acid Derivatives
pp. 1
Substitution of Existing Substituents
pp. 1
Reaction of a 1,2-Diamine with Tellurium Tetrachloride
pp. 1
By Nitrogen
pp. 1
Reaction of Amidoximes and Related Derivatives
pp. 1
Reaction with Sulfur Dichloride and Ammonium Chloride
pp. 1
From an Amidoxime and an Orthoformate
pp. 1
Modification of Substituents
pp. 1
1,2,4-Thiazaphospholes
pp. 1
Addition Reactions
pp. 1
Reaction of 1,2-Diamines with Selenium Compounds
pp. 1
From Acylated Aminoguanidines
pp. 1
By Cyclization of Monothiodiacylhydrazine Derivatives
pp. 1
Synthesis from Solid-Supported Esters
pp. 1
Fragments P—C, P—C, and S
pp. 1
Synthesis from 1,2,3-Benzotriselenoles with Nitrosonium Hexafluorophosphate To Give Radical Cationic Salts
pp. 1
From Vinyldiazonium Salts and Amine Derivatives
pp. 1
Via -Acylamidoximes Derived from -Acyl Isothiocyanates
pp. 1
From Diacylamines and Hydrazines
pp. 1
Aromatization
pp. 1
Reactions with an Alkyllithium and Sulfur Dichloride
pp. 1
Reaction with Trithiazyl Trichloride
pp. 1
Synthesis by Ring Transformation
pp. 1
1,2,3-Benzothiaselenazolium Salts and Benzobis(1,2,3-thiaselenazoles)
pp. 1
Dehalogenation
pp. 1
By [4 + 1] Cyclocondensation with Phosphorus Trichloride
pp. 1
Synthesis by Ring Transformation
pp. 1
Substitution of Hydroxy Groups by Halogens
pp. 1
Ring Contraction
pp. 1
By Hydrogen
pp. 1
Transformation of 1,2,3,4-Benzotetrazine 1,3-Dioxides
pp. 1
By Formation of One P—P and Two Se—C Bonds
pp. 1
Aromatization
pp. 1
Synthesis from 1,2-Dibromoarenes with Selenium
pp. 1
By Formation of One N—C Bond
pp. 1
1,2,3-Benzodithiazolium Salts (Herz Salts) from Arylamines and Sulfur Monochloride
pp. 1
Via -Acylamidoximes Derived from Nitriles
pp. 1
By the Use of Potassium Menthoxide
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Substitution of Existing Substituents
pp. 1
Reaction of a Lithiated Arylamine with a Silylated Tellurium Imide
pp. 1
By Formation of One Te—N Bond
pp. 1
By Formation of Two N—C Bonds
pp. 1
Using Selenium Dioxide
pp. 1
From 1,3,5-Triazine
pp. 1
From 1,2,5-Thiadiazoles
pp. 1
From 1,2,5-Thiadiazole-3,4-dicarbonitrile
pp. 1
3,5-Diaryl-1,2,4-Dithiazolium Salts by Oxidation of -Thioaroyl Formamides and Formamidines
pp. 1
1,2,4-Oxadiazole Rearrangements
pp. 1
Alkylation of 3-1,2,4-Dithiazole-3-thiones and 3-1,2,4-Dithiazol-3-imines
pp. 1
Of Heteroatoms
pp. 1
Fragments C—N—C—N—N
pp. 1
Mesoionic 1,3,2-Dithiazol-4-imines from Phenylacetylene and Tetrasulfur Tetranitride
pp. 1
Fragments S—C—N and P—C
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Synthesis from 1,3,2-Benzothiaselenastannoles
pp. 1
From Iminoesters, Thioesters, Amidines, and Guanidines with Hydrazines
pp. 1
Reaction of Tosylhydrazones with Selenium Oxychloride
pp. 1
Modification of 1,2,4-Triazolethiones
pp. 1
From Azidoaziridines
pp. 1
Condensation of Bis(dichlorophosphino)methane with Alkyl- and Arylhydrazines
pp. 1
By Formation of Two S—S Bonds and One N—C Bond
pp. 1
Oxidative Dealkylation–Cyclization of Isodithiobiurets
pp. 1
From Other Carboxylic Acid Derivatives (Imidates, Thioimidates, and Amidines)
pp. 1
Alkenylation
pp. 1
Reaction of Isothiocyanates with Diazo Compounds
pp. 1
By a Heteroatom
pp. 1
By Halogen
pp. 1
1,3,2-Oxazaphospholes
pp. 1
Substitution of Existing Substituents
pp. 1
By Formation of Two N—N Bonds
pp. 1
By Dehydrogenation of Dihydro-1,2,4-triazoles
pp. 1
1,2,3-Benzodithiaselenoles
pp. 1
Synthesis from 1,2,3-Benzotrithiole 2-Oxides by Photochemical Rearrangement
pp. 1
Reaction Using Dimethyl Sulfate as the Amide-Activating Agent
pp. 1
From an Amidoxime and a Cyanogen Halide
pp. 1
Using a Phosphaalkyne and 5-Phenyl-1,3,4-oxathiazol-2-one
pp. 1
Of Side-Chain α-Heteroatom Substitutents
pp. 1
By Annulation to an Arene or a Hetarene
pp. 1
Sydnone Imines from -Nitroso-α-amino Nitriles
pp. 1
From Thioimidates with Chloramine
pp. 1
1,2,5-Thiadiphospholes
pp. 1
From Aroylhydrazines and Thioamides
pp. 1
By Formation of One S—C and One P—C Bond
pp. 1
1,2,3,5-Thiatriazoles
pp. 1
Heterapentalenes from 1,2,3,4-Thiatriazol-5-amines and Aryl Isothiocyanates
pp. 1
Synthesis from Dilithium Arene-1,2-diselenolates with Selenium Tetrachloride
pp. 1
Via 1,1-Diazido-1-ethoxyalkanes and Amines
pp. 1
Aromatization
pp. 1
N-Trimethylsilylation
pp. 1
[3 + 2] Cycloaddition of Halo(imino)phosphines
pp. 1
1,2,4-Oxadiphospholes
pp. 1
By Formation of Two Se—C Bonds
pp. 1
2,1,3-Benzotelluradiazoles
pp. 1
By Reaction with Imines and Related Compounds
pp. 1
Addition of Azides to C=C Bonds
pp. 1
From Diazoalkanes and Imines, Oximes, or Diarylazines
pp. 1
Synthesis of 2-Aryl-[1,2,4]triazolo[4,3-]pyridinium Salts
pp. 1
By Alkylation of 1,4,2-Dithiazole-5-thiones
pp. 1
Use of Phosphaalkynes
pp. 1
By Formation of One O—C Bond
pp. 1
From Diazoalkanes and Isocyanates
pp. 1
Reaction of ,,′-Tris(trimethylsilyl)amidines with Selenium Dichloride
pp. 1
1,2,3,4-Oxatriazolium-5-aminides from Thiosemicarbazides and Nitrous Acid or Alkyl Nitrites
pp. 1
Addition Reactions
pp. 1
1,2,3-Triazolium Salts
pp. 1
By Formation of Two S—C Bonds
pp. 1
Substitution of Oxygen
pp. 1
Fragments N—N—C—C and P
pp. 1
From Alkenes
pp. 1
Reaction of Ethoxycarbonylimidothiocarbonates with Chloramine
pp. 1
With Ortho Esters
pp. 1
By O/P or O/As Exchange
pp. 1
By Formation of One O—C and One N—C Bond
pp. 1
Reaction of an Imidoyl Chloride with an -Formylhydrazine
pp. 1
From Thioketenes and Hydrazoic Acid
pp. 1
Nucleophilic Substitution of Halogen Substituents
pp. 1
Oxidation of Thioamides
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Ring Closure by Internal Alkylation
pp. 1
1,2,3,5-Dithiadiazolium Salts and Related Compounds
pp. 1
2,5-Dihydro-1,2,3,5-thiatriazoles from Nitrilimines and -Thionylaniline
pp. 1
Via -Nitroso Compounds
pp. 1
From Diazoalkanes and Heterocumulenes
pp. 1
By Reaction with Ortho Esters or Trihalomethyl Compounds
pp. 1
1,2,3-Benzodithiazolium Salts by Dehydration of 3-1,2,3-Benzodithiazole 2-Oxides
pp. 1
Fragment O—N—C—N—C
pp. 1
From Ortho Esters
pp. 1
Acylation Reactions
pp. 1
Fragments S—N and C—C—N
pp. 1
[1,3,2]Dithiazolo[4,5-]quinoxalinium Salts by Oxidation of the [1,3,2]Dithiazolo[4,5-]quinoxalin-2-yl Radical
pp. 1
Of Sulfur
pp. 1
By Ring Contraction
pp. 1
Fragments P—C—O and P—C
pp. 1
Protonation
pp. 1
Reaction of 1,2-Bis[(trimethylsilyl)imines] with Selenium Oxychloride
pp. 1
1,3,2-Dithiazolium Salts from Sulfenyl Chlorides and Trimethylsilyl Azide
pp. 1
Fragments N—N—C and N—P
pp. 1
From Amidrazones and Thiocarbonyl Compounds
pp. 1
Halogenation
pp. 1
Electrochemical Reduction of Carbon Disulfide
pp. 1
Of Hydrogen
pp. 1
Fragments C—N—N—C and O
pp. 1
By Formation of One S—N and One S—C Bond
pp. 1
From -Diazides
pp. 1
By Formation of One S—N, One S—C, and One N—C Bond
pp. 1
Oxidation with Lead(IV) Oxide
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Reactions of Halomethyl-Substituted Oxadiazoles
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Addition Reactions
pp. 1
Synthesis from 1,3,2-Benzodiselenastannoles
pp. 1
Fragments P—C, P—C, and Te
pp. 1
Pentaphospholides
pp. 1
1,2,3,4-Thiatriazol-5-amines from Thiosemicarbazides and Diazonium Salts
pp. 1
Dehydration Using Thionyl Chloride
pp. 1
By Formation of Two N—C Bonds
pp. 1
Direct Synthesis of η-1,2,5-Azadiphosphole Complexes from Alkylidynephosphines and Imidoiridium Complexes
pp. 1
3,5-Diaryl-1,2,4-dithiazolium Salts by Oxidation of Aryl Thioamides
pp. 1
Substitution of Hydrogen
pp. 1
Reactions with Sodium Hydrogen Sulfide
pp. 1
Cyclization of (1,2-Diphenylethene-1,2-diyl)bis(trityldiazene)
pp. 1
[3 + 2] Cyclocondensation of -Phosphino Imidates and Hydrazines
pp. 1
By Formation of One S—S, One S—N, and One N—C Bond
pp. 1
Fragments C—S—C and N—N
pp. 1
By Lithiation
pp. 1
By Another Heteroatom
pp. 1
Intramolecular Cyclization of -(Thioacylsulfanyl)amides
pp. 1
From an Amidoxime and a Carboxylic Acid or a Carboxylic Acid Derivative
pp. 1
N-Alkylation
pp. 1
1,2,4-Dithiazolium Salts from Nitriles and Phosphorus Pentasulfide
pp. 1
Formation of the N2—C3 and N4—C5 Bonds
pp. 1
O-Acylation
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
By Using Nitrenes Derived Ultimately from Trimethylsilyl Azide
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Diazotization of 2-Aminobenzeneselenol
pp. 1
Fragment O—N—C—C—N
pp. 1
From Amidrazones and Sodium Nitrite
pp. 1
Synthesis from 1,3,2-Benzothiatelluratitanoles with Sulfur Dichloride
pp. 1
Synthesis by Chloride Abstraction
pp. 1
Oxidation of Selenoamides
pp. 1
Cyclization of 1,2-Diketone Bis(acylhydrazones)
pp. 1
From Carboxylic Acid Derivatives
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
From Diazoalkanes and Diarylazines
pp. 1
[3 + 2] Cycloaddition of Azides
pp. 1
Reactions of Sulfur Substituents
pp. 1
Transformation of 1-(2-Nitrophenyl)-1-tetrazoles
pp. 1
Fragments O—N—C—N and C
pp. 1
From Formazanes
pp. 1
Beckmann Fragmentation of 2,1,3-Benzothiadiazole-4,5-dione Acetoximes
pp. 1
From an Amidoxime and a Cumulene or Heterocumulene
pp. 1
N-Arylation
pp. 1
N-Alkylation
pp. 1
From Perfluoroarenes with Sulfur Diimides
pp. 1
1,2,3-Benzotrithioles and Other Ring-Fused Analogues
pp. 1
By Formation of Four N—C Bonds
pp. 1
By Formation of One S—N and One S—C Bond
pp. 1
Reactions of Tetrazoles with Carboxylic Acid Derivatives
pp. 1
1,2,4-Selenadiphospholes
pp. 1
By Another Metal
pp. 1
1,3,4-Azadiphospholes
pp. 1
Reaction with Acetic Anhydride
pp. 1
From Arylsulfur Diimides
pp. 1
From 2,5-Bis(trifluoromethyl)-1,3,4-oxadiazole
pp. 1
By Formation of One Te—O, One Te—C, and One N—C Bond
pp. 1
Displacement of Alkylsulfonyl Groups by Oxygen and Sulfur Nucleophiles
pp. 1
1,2,3,5-Diselenadiazolium Salts and 1,2,3,5-Diselenadiazolyl-Containing Compounds
pp. 1
Fragments N—C—N and C—S
pp. 1
From 3-Arylazo-1,2,4-oxadiazoles
pp. 1
By Cycloaddition/Cycloreversion
pp. 1
By Formation of One S—Se and One S—N Bond
pp. 1
Reaction of 1,2,4-Triphospholides with Electrophiles
pp. 1
Fragments N—C—N and C—P
pp. 1
From Triazoles and from Thiatriazolamines
pp. 1
By Formation of One S—C and One N—C Bond
pp. 1
1,3,2-Dithiazolium Salts by Oxidation of 1,3,2-Dithiazolyl Free Radicals
pp. 1
From Phosphaacetylenes and Elemental Selenium
pp. 1
Reaction of a 1,2-Bis[(trimethylsilyl)imine] with Tellurium Tetrachloride
pp. 1
Synthesis by Ring Transformation
pp. 1
Synthesis from 1,2,3-Benzochalcogenadiazoles with Sulfur
pp. 1
Lithiation
pp. 1
By Formation of One N—C Bond
pp. 1
Nucleophilic Substitution
pp. 1
Synthesis by Solvolysis of 5-1,4,2-Oxathiazoles
pp. 1
By a Carbon Functionality
pp. 1
Synthesis from 1,3-Dichloro-1,3,2,4,6-dithiatriazines by Thermolytic Ring Contraction
pp. 1
Of Carbon
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Of Heteroatoms
pp. 1
Of Sulfur
pp. 1
By Formation of One O—P and One P—C Bond
pp. 1
Of a Triphospholane
pp. 1
By Formation of One O—N Bond
pp. 1
Synthesis from 1,3,2-Benzodithiastannoles with Tellurium Tetrachloride
pp. 1
1,3-Dipolar Cycloaddition Reactions of Nitrile Sulfides with Nitriles
pp. 1
1,2,3-Benzodiselenatelluroles
pp. 1
From Diazoalkanes and Oximes
pp. 1
C-Acylation
pp. 1
1,2,4-Dithiazolium Salts by Nucleophilic Substitution of Substituents
pp. 1
Cyclization of -Acylamidoximes Formed as Intermediates from Purine Precursors
pp. 1
Reaction of 1,2-Diaminoarenes with Selenium Oxychloride
pp. 1
Of 1,2,4-Triazolium Halides
pp. 1
Substitution of Halogens by Nucleophiles
pp. 1
From Amidrazones and Thionyl Chloride
pp. 1
From Amidrazones
pp. 1
Annulated 1,2,5-Oxathiazoles
pp. 1
From 2-Aminoacetamides
pp. 1
Of Oxygen Functions
pp. 1
By Formation of One N—P and One P—C Bond
pp. 1
Synthesis from Dibenzo-1,2,5,6-tetraselenocins by Photolysis
pp. 1
From Isothiazolones
pp. 1
By Formation of One Se—N and One N—N Bond
pp. 1
From Diazoalkanes and Unactivated Nitriles
pp. 1
By Formation of One N—N and One N—P Bond
pp. 1
By Formation of One N—N Bond
pp. 1
Synthesis from Amidines Using Sulfur Halides
pp. 1
By Formation of Two N—N Bonds
pp. 1
Synthesis by Ring Transformation
pp. 1
1,4,2-Oxathiazolium Salts
pp. 1
Fragments N—N—N and C—C
pp. 1
By Formation of Two S—Te Bonds
pp. 1
Reaction of Acylhydrazines with Carboxylic Acid Derivatives
pp. 1
From 2-Diazo-1,3-dicarbonyl Compounds and Amine Derivatives
pp. 1
Syntheses of 1,3,2-Dithiazolium Chlorides from Ethane-1,2-disulfenyl Dichlorides
pp. 1
From White Phosphorus and Lithium Dihydrogenphosphide
pp. 1
1,2,3,4-Oxatriazoles
pp. 1
Fragments P—C, P—C, and Se
pp. 1
C-Halogenation
pp. 1
Of Halogens
pp. 1
Pyrrolo[3,4-][1,3,2]diazaphospholes
pp. 1
From Thiohydrazide Derivatives
pp. 1
Reaction of Acylhydrazines with Cyanogen Bromide
pp. 1
Annulated 1,2,4-Oxathiazoles and 1,2,4-Dithiazoles
pp. 1
Synthesis by Introduction of Substituents
pp. 1
Cyclization Using Carbodiimides
pp. 1
By Formation of Two S—N Bonds
pp. 1
Of Carbon Functionalities
pp. 1
From Azides and Dehydrobenzene
pp. 1
Reaction of 2-Aminobenzeneselenol Hydrochlorides with Selenious Acid
pp. 1
From 1,3,5-Triazines
pp. 1
From Sulfonylcarbamoyl Chlorides and Hydrazines
pp. 1
Cycloadditions of Dichlorodithionitronium Hexafluoroarsenate to Alkynes
pp. 1
Addition of Azides to Enamines or Enol Ethers
pp. 1
Use of Phosphaalkenes
pp. 1
By Formation of One N—P (As, Sb) and One P—P (As, Sb) Bond
pp. 1
From Diacylhydrazine Compounds
pp. 1
Addition of the Azide Ion to Alkynes
pp. 1
From Diazoalkanes and Carbodiimides
pp. 1
From 1,3,4-Oxadiazol-2-amines
pp. 1
Of Phosphaalkenes and Sydnones
pp. 1
By Formation of One Se—Se and One N—C Bond
pp. 1
From 2-Diazo-3-oxoaldehydes and Amine Derivatives
pp. 1
From 2-Diazo-3-oxopropanoates and Amine Derivatives
pp. 1
Of Carbon Functionalities
pp. 1
From Tetrazoles
pp. 1
Chloromethylation
pp. 1
With Silver Salts
pp. 1
From Arene-1,2-diamines
pp. 1
By Formation of One S—N and One N—C Bond
pp. 1
1,2,3,4-Thiatriazol-5-amines from Isothiocyanates and Hydrazoic Acid or Trimethylsilyl Azide
pp. 1
Condensation of 2-Aminothiophenol with Phosphines
pp. 1
Transformation of 1,3,3-Trialkyl-2-(2,4-dinitrophenyl)diaziridines
pp. 1
Fragments C—P—C and O—N
pp. 1
1,3-Dipolar Cycloaddition of the Dithionitronium Cation to Alkynes
pp. 1
From Hydrazine and Thiocarbonyl Compounds
pp. 1
Reaction with Anilines
pp. 1
1,2,3,4-Thiatriazol-3-ium-5-olates from 1,2,3,4-Oxatriazol-3-ium-5-thiolates
pp. 1
From 1,2,5-Oxadiazoles
pp. 1
1,6,6aλ-Trithia-3-azapentalenes by Oxygen–Sulfur Exchange Reactions of (1,2-Dithiol-3-ylidene)benzamide Derivatives
pp. 1
By Formation of Two Se—C Bonds
pp. 1
1,2,3-Benzodithiatelluroles
pp. 1
Deprotonation and Reaction of 5-Alkyl Groups
pp. 1
Of Metals
pp. 1
From 1,3,4-Oxadiazoles
pp. 1
Sulfonylamino-1,2,3,4-thiatriazoles from 1,3-Thiazetidine-2,4-diimines and Sodium Azide
pp. 1
By Formation of One S—S and Two S—N Bonds
pp. 1
Synthesis from Metal Enedithiolates with Sulfur Dichloride
pp. 1
From Nitriles
pp. 1
Of Phosphaalkenes or Arsaalkenes and Diazoalkanes
pp. 1
Conversion of Substituents into Alkene Derivatives
pp. 1
Oxidation of Diazines with Lead(IV) Acetate
pp. 1
Using Iodine
pp. 1
Fragments N—N—C and O—C
pp. 1
Transformation of 1,3-Dihydro-2-benzimidazol-2-ones
pp. 1
From Diazoalkanes and Nitriles
pp. 1
Synthesis by Substituent Modification
pp. 1
By Hydrogen
pp. 1
From Carbonic Acid Derivatives
pp. 1
Reaction of 1,2,5-Thiadiazoles with Grignard Reagents and Diselenium Dichloride
pp. 1
By Formation of One N—N and Two N—C Bonds
pp. 1
From Red Phosphorus and Potassium Dihydrogenphosphide
pp. 1
Reactions of Carbon Substituents
pp. 1
By Formation of One S—S and One S—C Bond
pp. 1
Dehydration Using Burgess-Type Reagents
pp. 1
C-Metalation, Alkylation, and Acylation
pp. 1
Fragments C—N—N and C—P/As
pp. 1
Conversion into -Oxides or Epoxides
pp. 1
From 4-Chloroquinazolines
pp. 1
Modification of Substituents
pp. 1
Of Nitrogen
pp. 1
1,2,3,4-Thiatriazoles from Dithiocarboxylates and Sodium Azide
pp. 1
Cyclization of 1,2-Diketone Bis(hydrazone) Derivatives
pp. 1
Deoxygenation of 1,2,5-Oxadiazole 2-Oxides
pp. 1
Reaction with Carboxylic Acid Chlorides
pp. 1
From Amidrazones and Sulfuryl Fluoride
pp. 1
From Imidazoles
pp. 1
Substitution of Nitrogen
pp. 1
1,2,3,4-Thiatriazoles
pp. 1
Of Oxygen
pp. 1
Of Carbon
pp. 1
Reaction of an Aromatic-Fused 1,2,5-Selenadiazole with a Grignard Reagent, Followed by Tellurium Tetrachloride
pp. 1
From Acylhydrazines and Thioesters
pp. 1
Fragments N—N—C—N and P
pp. 1
From 4-Hydrazono-1,3-oxazol-5(4)-ones
pp. 1
1,3,2-Benzothiaselenatelluroles
pp. 1
1,2,3-Benzodiselenazolium Salts
pp. 1
Synthesis from Benzene-1,2-diselenenyl Dichloride with Selenium
pp. 1
Addition of Azides to Alkynes
pp. 1
From (1-Cyanocyclopentyl)imidosulfurous Dichloride
pp. 1
From Other 1,2,3-Benzodithiazolium Salts and Amines
pp. 1
Rearrangement of Substituents
pp. 1
Reaction of 1,2-Diimines with Selenium Compounds
pp. 1
Cyclization of (2-Aminophenyl)hydrazine Derivatives
pp. 1
Reaction with Imidate Hydrochlorides
pp. 1
Mesoionic 1,3,2-Dithiazole-4-thiones from Alkynes and 1,2,4,6-Tetrathia-3,5,7-triazepinium Chloride
pp. 1
Thermolysis of α-Azidoacetophenone (Phenylsulfonyl)hydrazones
pp. 1
Fragments N—C—P and C—P
pp. 1
Synthesis from 1,3-Dichloro-2-azaprop-2-eniminium Salts via a Dithiobiuret Intermediate
pp. 1
By Another Heteroatom
pp. 1
1,2,3,4-Oxatriazolium-5-aminides from 1,2,3,4-Oxatriazolium-5-anilides and Aryl Isocyanates
pp. 1
Cyclization of 2-Nitroazobenzenes
pp. 1
Modification of Nitrogen Substituents
pp. 1
Reaction of 2-Aminobenzenethiols with Selenious Acid
pp. 1
N-Formylation
pp. 1
Formation of Metal Complexes
pp. 1
From 1,2,5-Thiadiazole-3,4-diamine
pp. 1
1,3,4-Thiazaphospholes
pp. 1
Hydride Abstraction from 5-Phenyl-3-1,2,4-dithiazole
pp. 1
From -(Anilinomethylene)-1,2,4-oxadiazol-3-amines
pp. 1
Fragments C—N—N and N—O
pp. 1
From -Cyanoimines
pp. 1
Reaction of 1,2-Diacetylhydrazine with Phosphorus Pentaselenide
pp. 1
Synthesis by Substituent Modification
pp. 1
By Carbon
pp. 1
By Annulation to an Arene
pp. 1
Synthesis by O-Alkylation Using Methyl Fluorosulfonate
pp. 1
Cyclocondensation of 2-Heteroallylic Cations with Hydrazines
pp. 1
By Formation of Two S—S Bonds and One C—C Bond
pp. 1
Synthesis from Nitriles with Dithionitronium Hexafluoroarsenate
pp. 1
Synthesis from 1,3,2-Benzothiaselenastannoles with Selenium Oxychloride, Trimethylsilyl Trifluoromethanesulfonate, and Samarium(II) Iodide
pp. 1
Reaction of -Acyl-′-selenoacylhydrazines with Acetic Anhydride/Perchloric Acid
pp. 1
Synthesis from 1,3-Benzodithiol-2-ones
pp. 1
Reaction of Diazo Oxides with Phosphorus Pentasulfide
pp. 1
From Acylated Amidrazones
pp. 1
Monocyclic 1,2,5-Oxadiazoles (Furazans)
pp. 1
Flash Pyrolysis of Substituted Aminophosphines
pp. 1
Synthesis from Benzopentathiepins
pp. 1
Fragments N—N, S, and Two C Fragments
pp. 1
Use of Sulfur Dichloride or Sulfur Monochloride in the Hurd–Mori Procedure
pp. 1
From Dichloro- or Trichloroacetaldehyde Sulfonylhydrazones and Primary Amines
pp. 1
Reaction of -Bromoamidines with Potassium Selenocyanate
pp. 1
Synthesis by Annulation to a Heterocyclic Ring
pp. 1
Intramolecular 1,3-Dipolar Cycloadditions
pp. 1
Fragments N—C, N—N, and C
pp. 1
By Formation of One N—C Bond
pp. 1
-Debenzoylation of 2-Benzoyl-5-(benzoylimino)-2,5-dihydroselenadiazoles
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Substitution of Sulfur by Nucleophiles
pp. 1
[3 + 2] Cycloaddition of Nitrile Oxides
pp. 1
By Formation of One N—P and One S—C Bond
pp. 1
1,2,3-Benzodithiazolium Salts by Oxidation of Benzodithiazolyl Radicals
pp. 1
By Formation of One O—N and One C—C Bond
pp. 1
From Carbon Disulfide or Carboxylic Acid Derivatives with Amine and Azide
pp. 1
Cyclization of Linear Triazenes and Tetrazenes
pp. 1
Synthesis by Ring Transformation
pp. 1
Reactions with Sulfur in Liquid Ammonia
pp. 1
[4 + 1] Cyclocondensation
pp. 1
Formylation
pp. 1
By Formation of One S—P and One N—P Bond
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Synthesis by Substituent Modification
pp. 1
Fragments C—C—N and N—N
pp. 1
1,3,2-Benzodiazaphospholes
pp. 1
1,2,3,4-Oxatriazolium-5-olates from -Nitrosohydrazines and Phosgene
pp. 1
Isoxazole Rearrangements
pp. 1
1,2,5-Telluradiazoles
pp. 1
1,2,3-Benzazadiphospholes and Analogues
pp. 1
By Formation of One S—S and Two N—C Bonds
pp. 1
By Formation of One S—S and One N—C Bond
pp. 1
Reactions in Liquid Ammonia
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Sydnones from -Nitroso-α-amino Acids
pp. 1
By Halide Abstraction
pp. 1
Oxidation of Amidinothioureas
pp. 1
By Formation of One Se—S and One Se—N Bond
pp. 1
Synthesis from 1,3,4-Oxadiazolium Salts
pp. 1
From Nitrilium Salts
pp. 1
From Isoxazoles and Isoxazolium Salts
pp. 1
By Halogens
pp. 1
1,2,3,4-Oxatriazolium-5-aminide Hydrochlorides from 1-Nitroso-2-guanidinohydrazines
pp. 1
Reaction of Aryl Azides with Alkoxides
pp. 1
From Aroylsemicarbazides and Amines
pp. 1
Of Tri--butyl-1,3,5-triphosphabenzene
pp. 1
From Hydrazides and Thiocarbonyl Compounds
pp. 1
N-Acylation and Sulfonation of 1,2,3,4-Oxatriazolium-5-aminides
pp. 1
Fragment C—N—S—C—O
pp. 1
1,2,3,5-Diazadiphospholes
pp. 1
Formal Germanium/Sulfur Exchange of a 1,3,2-Dithiagermole with Thionyl Chloride
pp. 1
1,2,3-Benzodithiazolium Salts from 2-Aminobenzenethiols and Thionyl Chloride
pp. 1
1,2,4-Thiadiphospholes
pp. 1
By Formation of One N—P, One N—C, and One P—C Bond
pp. 1
From Amidines, Hydrazine, and Esters
pp. 1
By Formation of Two O—S Bonds and One S—C Bond, or One O—S, One S—S, and One S—C Bond
pp. 1
By Halogens
pp. 1
From Amidines
pp. 1
By Formation of Two Se—N Bonds
pp. 1
From Indoles and Pyrroles with Trithiazyl Trichloride
pp. 1
Of Halogens
pp. 1
1,3,2-Dithiazolium Salts by Cycloaddition
pp. 1
From 2-Alkyl-1,2,5-thiadiazolium Salts
pp. 1
By Formation of One O—N Bond
pp. 1
Of Heteroatoms
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Synthesis from 1,3,2-Benzoselenatelluratitanoles with Selenium Oxychloride
pp. 1
By Formation of One S—C Bond
pp. 1
Reaction Using an Electron-Deficient Arylhydrazine
pp. 1
By Oxygen
pp. 1
Mesoionic 1,3,2-Dithiazole-4-thiones from 1,3,2-Dithiazolium Salts and Vice Versa
pp. 1
Synthesis from 1,3,2-Benzothiatelluratitanoles with Selenium Oxychloride
pp. 1
Addition Reactions
pp. 1
Cyclization of 1,2-Diketone Bis(hydrazones)
pp. 1
From Cyanates, Thiocyanates, and Their Derivatives
pp. 1
By Using Nitrile Oxides Generated from Imidoyl Halides (Halooximes)
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
By a Heteroatom
pp. 1
Of Phosphaalkynes and Sydnones
pp. 1
2,1,3-Benzoxadiazole 1-Oxides (Benzofuroxans) and Other Annulated Furoxans
pp. 1
Synthesis by Ring Transformation
pp. 1
Reaction with Dialkylammonium Acetates
pp. 1
5-Alkoxy- and 5-Aryloxy-1,2,3,4-thiatriazoles from -Alkyl or -Aryl Chloridothiocarbonates and Sodium Azide
pp. 1
From an Amidoxime and an Acid Chloride
pp. 1
By Hydrogen
pp. 1
Of Hydrogen
pp. 1
Fragment S—N—C—C—N
pp. 1
1,3,2-Benzodiselenazolium Salts
pp. 1
From Diformyl- or Diacylhydrazines and a Sulfur Source
pp. 1
Addition of Azides to Unsymmetrical Disubstituted Alkynes
pp. 1
Cyclization of α-Diazoamides
pp. 1
N-Hydroxylation
pp. 1
Fragment N—C—S—C—S
pp. 1
Reaction of Carboxylic Acids with Hydrazine
pp. 1
By Nitrogen
pp. 1
Halogenation
pp. 1
Reaction of 1,2,3-Benzodithiazolium Salts with Selenious Acid
pp. 1
Synthesis by Intramolecular Cyclization of -(Acylsulfanyl)amides
pp. 1
From α-Nitro Ketoximes
pp. 1
1,3,2,4-Dithiadiazolium Salts and Related Compounds
pp. 1
2,1,3-Benzothiaselenazolium Salts
pp. 1
Thiazolo[2,3-][1,4,2]diazaphospholes, Thiazolo[3,2-][1,4,2]diazaphospholes, and Related Systems
pp. 1
Using 3-Chloroperoxybenzoic Acid
pp. 1
Annulated 1,2,3-Thiadiazoles
pp. 1
From Alkynes
pp. 1
3-Amino-5-aryl-1,2,4-dithiazolium Salts by Oxidation of -Acylthiourea Derivatives
pp. 1
Deacylation
pp. 1
From an Amidoxime and a Carbonic Acid Derivative
pp. 1
Of Hydrogen
pp. 1
Synthesis by Aromatization
pp. 1
From -Acylimines
pp. 1
Diphospharsolides
pp. 1
Heterapentalenes from -Aryl-3-imino-3-1,2,4-dithiazol-5-amines and Aryl Isothiocyanates
pp. 1
Of Hydrogen
pp. 1
From -Acylamidoximes Derived from Amidoximes
pp. 1
By Elimination Reactions
pp. 1
2,5-Diaryl-1,6,6aλ-trithia-3,4-diazapentalenes from -Methylisothiourea Derivatives and Phosphorus Pentasulfide
pp. 1
Aromatization
pp. 1
Reactions of Arene-1,2-dithiols with Selenium Dioxide
pp. 1
Substitution of Existing Substituents
pp. 1
By Formation of One N—N, One O—C, and One N—C Bond
pp. 1
Thermal Dehydration
pp. 1
From 1,3-Dihydro-1,2,3-triphospholes
pp. 1
Fragments S—N—S and C—C
pp. 1
Of Metals
pp. 1
By Acylation (Through Rearrangement)
pp. 1
By Formation of Two S—C Bonds and One N—C Bond
pp. 1
Oxidative Degradation of 2,1,3-Benzothiadiazoles
pp. 1
Reactions of 1,2,3-Benzoselenadiazoles with Selenium
pp. 1
1,6,6aλ-Trithia-3-azapentalenes from 3-1,2-Dithiol-3-imines and Isothiocyanates
pp. 1
2,3-Dihydro-1,2,3,5-oxatriazoles from Nitrile Oxides and Azo Compounds
pp. 1
From Nitrene Precursors
pp. 1
Of Heteroatoms
pp. 1
Via -Acylamidoximes Derived from the Reaction of Amide Precursors with ,-Dialkylformamide Dialkyl Acetals
pp. 1
Reductive Deamination
pp. 1
1,2,3-Selenadiazoles
pp. 1
Dearylation
pp. 1
Reaction of Amidinium Salts with Sulfur Monochloride
pp. 1
Fragments O—N—N—N and C
pp. 1
Fragments C—N—N and C—N
pp. 1
By Formation of One O—C Bond
pp. 1
1,3,2-Benzodithiazolium Chloride from Benzene-1,2-disulfenyl Dichloride and Bis(trimethylsilyl)sulfur Diimide
pp. 1
Cyclization of 1,2-Diketone Bis(semicarbazones)
pp. 1
Aromatization
pp. 1
1,2,3-Benzoxaselenazoles
pp. 1
By Formation of One N—C Bond
pp. 1
Fragments C—N—C and N—O
pp. 1
From Acid Chlorides
pp. 1
From -Acylamidoximes
pp. 1
Of Hydrogen
pp. 1
Fragments N—C—N—N—C
pp. 1
From Enaminones and 3-Diazo-1,3-dihydro-2-indol-2-one Derivatives
pp. 1
By Formation of One S—N and One C—C Bond
pp. 1
Formal Ring Expansion with the Insertion of an Extra Sulfur Atom
pp. 1
Modification of 1,2,4-Triazolones
pp. 1
Conversion into -Oxides
pp. 1
Fragment O—C—N—N—C
pp. 1
Curtius Reaction
pp. 1
Synthesis by Ring Transformation
pp. 1
5-Alkyl- and 5-Aryl-1,2,3,4-thiatriazoles from 1-Methyl-2-[(thioacyl)sulfanyl]pyridinium Iodides and Sodium Azide
pp. 1
1,3,2-Benzothiazaphospholes and -arsoles
pp. 1
Aromatization
pp. 1
Synthesis by Ring Transformation
pp. 1
Synthesis from 1,2,3-Benzothiadiazol-7-amines
pp. 1
From 2-Nitroaryl Azides
pp. 1
Synthesis of 1,3,4-Oxadiazolamines from Acyl Semicarbazides
pp. 1
Ring Contraction of Dibenzo-1,2,5,6- and 1,5,2,6-Dithiadiselenocins by Photolysis
pp. 1
1,2,3-Benzothiaselenatelluroles
pp. 1
From Aldehyde Hydrazones and Azides
pp. 1
By Formation of One Se—O, One Se—N, and One O—C Bond
pp. 1
Transformation of 1,2,4-Benzotriazin-3(2)-ones
pp. 1
Using a Phosphaalkyne and 4-Phenyl-1,3,2-oxathiazolium-5-olate
pp. 1
Nucleophilic Substitution of 5-Methylsulfanyl Groups from 1,4,2-Dithiazolium Salts
pp. 1
1,2,4-Diselenazolium Salts
pp. 1
Of Side-Chain α-Carbon Substituents
pp. 1
Addition of Azides to Ketene Acetals
pp. 1
By Formation of One O—C and One P—C Bond
pp. 1
Modification of a C3 or C5 Ester Functionality
pp. 1
Dealkylation
pp. 1
Reaction of 1-Chloro-2-nitrobenzenes or 1,2-Dinitrobenzenes with Hydrazine
pp. 1
From Acylhydrazines and Carboxylic Ester Imides
pp. 1
Oxidation of Aldehyde Acyl Hydrazones
pp. 1
By Carbon at Carbon
pp. 1
By Oxidation Reactions
pp. 1
1,3,4-Selenadiazoles and 1,3,4-Selenadiazolium Salts
pp. 1
By Dimerization of Nitrile Oxides
pp. 1
By Formation of One S—N and One N—C Bond
pp. 1
Modification of Substituents
pp. 1
By Radical Substitution
pp. 1
From 1-Chloroethane-1,2-disulfenyl Chlorides and Trimethylsilyl Azide
pp. 1
Reaction of 1,2-Bis[(trimethylsilyl)imines] with Selenium Oxychloride or Selenium Tetrachloride
pp. 1
[3 + 2] Cyclocondensation with (Chloromethyl)dichlorophosphine
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Fragment N—N—C—C—N
pp. 1
Cyclization of (3-Aryl-1-methyltriaz-2-enyl)acetic Acid Derivatives
pp. 1
Synthesis from Alkylidynephosphines and Imidometal Complexes
pp. 1
By Formation of One S—S and Two S—C Bonds
pp. 1
By Formation of Two S—N Bonds
pp. 1
Nitrogen and Carbon Decarboxylation, Deacylation, and Dealkylation
pp. 1
Pentarsolides
pp. 1
Addition of Azides to Alkoxyalkynes
pp. 1
1,2,3,4-Thiatriazol-5-amines from Thiosemicarbazides and Nitrous Acid
pp. 1
Fragment C—N—N—N—N
pp. 1
Use of Lithium (Trimethylsilyl)diazomethane
pp. 1
Of Organic and Heteroatom Groups
pp. 1
Synthesis by [4 + 1] Cyclocondensation
pp. 1
Reaction with Ortho Esters
pp. 1
Synthesis from 1,2,3-Benzotrithioles with Nitrosonium Hexafluorophosphate To Give Radical Cationic Salts
pp. 1
From 1,2-Quinone Dioximes
pp. 1
2,1,3-Benzothiadiselenoles
pp. 1
By Formation of One P—P and One P—C Bond
pp. 1
Reaction of Amidoximes with Carbon Disulfide
pp. 1
Synthesis by Ring Transformation
pp. 1
By Formation of Two N—P Bonds and One C—C Bond
pp. 1
By Metals
pp. 1
Synthesis by One-Electron Reduction Using Zinc/Copper or Triphenylstibine
pp. 1
Reactions of 1,2,4-Triazines with Bromine
pp. 1
Transformations Involving Diazonium Intermediates
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Cyclocondensation with Phosphorus Trichloride
pp. 1
By Oxygen at Carbon
pp. 1
From an Amidoxime and an Alkyl or Aryl Nitrile
pp. 1
Addition of Acyl or Alkoxycarbonyl Azides to α-Acylphosphorus Ylides
pp. 1
From 1,3,4-Oxadiazolium Salts
pp. 1
By Formation of One N—C Bond
pp. 1
Lithiation of a Methyl Substituent, Silylation, and Peterson Alkenation with a Ketone
pp. 1
Synthesis of 3-Carbonitrile Derivatives
pp. 1
Fragments C—C—S and N—O
pp. 1
N-Alkylation of 2,5-Dihydro-1,2,3,5-thiatriazole 1-Oxides
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Fragments S—Arene—N and P
pp. 1
Monocyclic 1,3,2-Dithiazoles
pp. 1
Cyclization of the Oxime Oxygen onto an Iminium Carbon
pp. 1
Reaction of -Sulfenylamidines with Isothiocyanates
pp. 1
By Formation of One N—C Bond
pp. 1
Of Carbon Functionalities
pp. 1
By Formation of One S—N Bond
pp. 1
1,2,4-Diazaphospholo[1,5-]pyridines and 1,2,4-Diazarsolo[1,5-]pyridines
pp. 1
Formation of the N1—C5 and N4—C5 Bonds
pp. 1
Synthesis by Substituent Modification
pp. 1
From Cyanoaminium Salts
pp. 1
Synthesis by One-Electron Reduction Using Triphenylstibine
pp. 1
From Dimethyl Diazomalonate and Amines
pp. 1
Monocyclic 1,2,3-Azadiphospholes
pp. 1
By Formation of One O—C Bond
pp. 1
Pechmann and Nold Synthesis
pp. 1
From Pyrimidine and Quinazoline Derivatives
pp. 1
Oxidation with Bromine
pp. 1
By Formation of One S—N and One N—C Bond
pp. 1
Alkylation and Acylation of 1,2,3,4-Thiatriazol-5-amines
pp. 1
By Formation of One O—C and One N—C Bond
pp. 1
By Formation of One S—N and One N—C Bond
pp. 1
Rearrangement of Substituents
pp. 1
N-Unsubstituted and 1-Substituted Benzotriazoles
pp. 1
From Hetaryltriazenes
pp. 1
By Formation of One Se—N and One N—C Bond
pp. 1
Reactions of Azirines with Acylhydrazines
pp. 1
Dehydration Using Hexamethyldisilazane
pp. 1
Cyclization of Vinyl Azides
pp. 1
From Aliphatic Monoamines
pp. 1
Synthesis from 1,2,3-Benzotriselenoles with Sulfur
pp. 1
Addition of Organic Groups
pp. 1
1,2,3,5-Thiatriazolidine-4-thiones from 1,2,4-Triaza-3-silacyclopentane-5-thiones and Sulfur Dichloride
pp. 1
By Nitrogen
pp. 1
Reaction of ,,′-Tris(trimethylsilyl)amidines with Sulfur Dichloride
pp. 1
By Oxidation of Amidrazones
pp. 1
By 1,3-Dipolar Cycloaddition of Nitrile Oxides to Imines, Followed by Aromatization of the Intermediate 4,5-Dihydro-1,2,4-oxadiazole
pp. 1
Dehydration Using Triphenylphosphine and Carbon Tetrachloride
pp. 1
2-Substituted Benzotriazoles
pp. 1
1,6,6,aλ-Trithia-3,4-diazapentalenes from Dithiocyanatomethyl Disulfides
pp. 1
Reactions with Lithium or Sodium Enedithiolates
pp. 1
From 2-Aminobenzenethiols
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Deformylation
pp. 1
Rearrangement of Substituents
pp. 1
1,2,3,4-Thiatriazol-5-amines from Isothiocyanates and Trimethylsilyl Azide
pp. 1
Using a Selenium Diimide
pp. 1
Synthesis by Alkylation of 3-1,2,4-Dithiazol-3-imines
pp. 1
Addition of Azides to Metal Acetylides
pp. 1
Synthesis by Ring-Closure Reactions
pp. 1
Cyclization of 1,2-Bis(-alkoxy--nitrosoamines)
pp. 1
Use of Elemental Sulfur with a Tantalum Catalyst
pp. 1
1,6,6aλ-Trithia-3-azapentalenes by Oxygen–Sulfur Exchange Reactions of 3-1,2,4-Dithiazolylidene Derivatives
pp. 1
From Isocyanides
pp. 1
By Formation of One S—N and One S—C Bond
pp. 1
Synthesis by Substituent Modification
pp. 1
Reaction with Selenium Tetrachloride
pp. 1
Synthesis from 3-1,2,4-Dithiazole-3-thiones
pp. 1
Rearrangement of Substituents
pp. 1
Of Sulfur
pp. 1
1,2,3,4-Thiatriazol-5-amines from Isothiocyanates and Hydrazoic Acid
pp. 1
Dearylation of -Arylpentazoles
pp. 1
From 1,2,5-Thiadiazole-3,4-dicarbonyl Compounds
pp. 1
Substitution of Nitrogen by Nucleophiles
pp. 1
With Carboxylic Acids
pp. 1
By Carbon
pp. 1
By Formation of One Se—Se and Two Se—N Bonds
pp. 1
From an Amidoxime and a Chloroformate
pp. 1
Synthesis from Arene-1,2-dithiols with Tellurium Tetrachloride
pp. 1
Reaction of a 5-Aminopyrimidin-4(3)-one with Selenium Dioxide
pp. 1
Acylation
pp. 1
From 1,2,5-Thiadiazolamines
pp. 1
From Diarylnitrilimines and Alkyl Isocyanides
pp. 1
Formation of Two P—C Bonds
pp. 1
Of Sulfur Groups
pp. 1
Condensation of Phosphinoanilines with Hexamethylphosphorous Triamide, Hexamethylarsenous Triamide, or Tris(dimethylamino)stibine
pp. 1
By a Heteroatom (X, O, S, Se, N, and P)
pp. 1
Deoxygenation of 1,2,5-Thiadiazole 1-Oxides
pp. 1
Heteroannulated Herz Salts from Heteroaromatic Amines and Sulfur Monochloride: Synthesis by Annulation to a Heterocyclic Ring
pp. 1
Fragments P—C—C—N and P (As, Sb)
pp. 1
By Carbon (Palladium-Catalyzed Cross Coupling)
pp. 1
Amidoximes and Isothiocyanates
pp. 1
Unsymmetrically Substituted 3,5-Diaryl-1,2,4-dithiazolium Salts from Aryl Thioamide -Oxides and Thiobenzoic Acid Derivatives
pp. 1
Synthesis of Mesoionic Isosydnones Using Phosgene
pp. 1
From 2-Substituted Tetrazoles and Benzimidoyl Chlorides
pp. 1
1,6-Dioxa-6aλ-thia-2,5-diazapentalenes and 1-Oxa-6,6aλ-dithia-2,5-diazapentalenes from 1,3-Dioximes
pp. 1
Cyclocondensation with Hexamethylphosphorous Triamide
pp. 1
By Formation of One Se—C and Two N—C Bonds
pp. 1
From Oxazolones
pp. 1
Reaction of Spirocyclic Aminals with Selenium Dioxide
pp. 1
From Amidrazone Hydrochlorides and Hexaalkylphosphorous Triamides
pp. 1
Oxidation of -Arylthioureas and -Alkylthioureas
pp. 1
Fragments C—N—S and C—N
pp. 1
Synthesis by Substituent Modification
pp. 1
Fragments N—N—C and S—C
pp. 1
Synthesis from Metal Enedithiolates
pp. 1
From a Pyrimidin-4(3)-one
pp. 1
Monocyclic 1,2,4-Dithiazoles
pp. 1
Monocyclic 1,2,4,3-Triazaphospholes
pp. 1
By Formation of One S—N Bond
pp. 1
From Enaminones and Sulfonyl Azides
pp. 1
Annulated 1,2,3-Dithiazoles
pp. 1
Dithiazolidine Rearrangements
pp. 1
Reaction of Amidoximes with Sulfur Dichloride
pp. 1
By Reaction with Phenols
pp. 1
Fragments N—N—N, N, and C
pp. 1
By Formation of Two S—C Bonds
pp. 1
2,1,3-Benzoselenadiazoles
pp. 1
From Cyanoformamide and Its Esters
pp. 1
By Formation of Three N—C Bonds
pp. 1
Using Hydrogen Peroxide
pp. 1
Synthesis from 1,3,2-Dithiametalloles
pp. 1
By Annulation to an Arene
pp. 1
Modification of Substituents
pp. 1
1,2,3-Triphospholides
pp. 1
1,2,3,4-Thiatriazole-5-thiol from Carbon Disulfide and Azide Salts
pp. 1
Reaction of a Hindered Aniline with Selenium Oxychloride
pp. 1
Claisen-Type Rearrangement
pp. 1
Synthesis from 1,3,4-Thiadiazolium Salts
pp. 1
Rearrangements
pp. 1
By [3 + 2] Cyclocondensation with (Chloromethyl)dichlorophosphine
pp. 1
By Formation of One Se—P, One Se—C, and One P—C Bond
pp. 1
Fragments P—P—C and P—C
pp. 1
From Isoxazoles
pp. 1
By Deuterium
pp. 1
By Formation of One N—P/As and One P/As—C Bond
pp. 1
Nitration
pp. 1
Hydrogen–Deuterium Exchange
pp. 1
1,3,4-Selenadiphospholes
pp. 1
Reactions with Thionyl Chloride, Sodium Iodide, and Perchloric Acid
pp. 1
Oxidation of Thioacylguanidines
pp. 1
From Imidates
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