For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
3
views
16
references
 Top references
cited by
13
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      0
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: not found

      Ligand-Controlled Asymmetric Arylation of Aliphatic α-Amino Anion Equivalents

      rapid-communication
      Author(s): ,
      Publication date (Electronic):
      Journal: Journal of the American Chemical Society
      Publisher: American Chemical Society

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          A palladium-catalyzed asymmetric arylation of 9-aminofluorene-derived imines using a chiral dialkylbiaryl phosphine as the supporting ligand has been developed. This transformation allows for enantioselective access to a diverse range of α-branched benzylamines.

          Related collections

          Most cited references16

          • Record: found
          • Abstract: found
          • Article: not found

          Versatile Photocatalytic Systems for H2 Generation in Water Based on an Efficient DuBois-Type Nickel Catalyst

          Manuela Groß, Anna Reynal, James R. Durrant … (2013)
          The generation of renewable H2 through an efficient photochemical route requires photoinduced electron transfer (ET) from a light harvester to an efficient electrocatalyst in water. Here, we report on a molecular H2 evolution catalyst (NiP) with a DuBois-type [Ni(P2 R′N2 R″)2]2+ core (P2 R′N2 R″ = bis(1,5-R′-diphospha-3,7-R″-diazacyclooctane), which contains an outer coordination sphere with phosphonic acid groups. The latter functionality allows for good solubility in water and immobilization on metal oxide semiconductors. Electrochemical studies confirm that NiP is a highly active electrocatalyst in aqueous electrolyte solution (overpotential of approximately 200 mV at pH 4.5 with a Faradaic yield of 85 ± 4%). Photocatalytic experiments and investigations on the ET kinetics were carried out in combination with a phosphonated Ru(II) tris(bipyridine) dye (RuP) in homogeneous and heterogeneous environments. Time-resolved luminescence and transient absorption spectroscopy studies confirmed that directed ET from RuP to NiP occurs efficiently in all systems on the nano- to microsecond time scale, through three distinct routes: reductive quenching of RuP in solution or on the surface of ZrO2 (“on particle” system) or oxidative quenching of RuP when the compounds were immobilized on TiO2 (“through particle” system). Our studies show that NiP can be used in a purely aqueous solution and on a semiconductor surface with a high degree of versatility. A high TOF of 460 ± 60 h–1 with a TON of 723 ± 171 for photocatalytic H2 generation with a molecular Ni catalyst in water and a photon-to-H2 quantum yield of approximately 10% were achieved for the homogeneous system.
          Article 0 comments Cited 448 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            Synthesis and applications of tert-butanesulfinamide.

            MaryAnn Robak, Melissa A. Herbage, Jonathan Ellman (2010)
            Article 0 comments Cited 134 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Enantioselective direct α-amination of aldehydes via a photoredox mechanism: a strategy for asymmetric amine fragment coupling.

              Giuseppe Cecere, Christian M König, Jennifer L Alleva … (2013)
              The direct, asymmetric α-amination of aldehydes has been accomplished via a combination of photoredox and organocatalysis. Photon-generated N-centered radicals undergo enantioselective α-addition to catalytically formed chiral enamines to directly produce stable α-amino aldehyde adducts bearing synthetically useful amine substitution patterns. Incorporation of a photolabile group on the amine precursor obviates the need to employ a photoredox catalyst in this transformation. Importantly, this photoinduced transformation allows direct and enantioselective access to α-amino aldehyde products that do not require postreaction manipulation.
              Article 0 comments Cited 68 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Journal
                Journal ID (nlm-ta): J Am Chem Soc
                Journal ID (iso-abbrev): J. Am. Chem. Soc
                Journal ID (publisher-id): ja
                Journal ID (coden): jacsat
                Title: Journal of the American Chemical Society
                Publisher: American Chemical Society
                ISSN (Print): 0002-7863
                ISSN (Electronic): 1520-5126
                Publication date PMC-release: 12 March 2015
                Publication date (Electronic): 12 March 2014
                Publication date (Print): 26 March 2014
                Volume: 136
                Issue: 12
                Pages: 4500-4503
                Affiliations
                [1]Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
                Author notes
                Article
                DOI: 10.1021/ja501560x
                PMC ID: 3985922
                PubMed ID: 24621247
                SO-VID: 20e3f4fc-4c50-4274-b037-ccc0a150078e
                Copyright © Copyright © 2014 American Chemical Society
                History
                Date received : 13 February 2014
                Funding
                National Institutes of Health, United States
                Categories
                Subject: Communication
                Custom metadata
                document-id-old-9 ja501560x
                document-id-new-14 ja-2014-01560x
                ccc-price

                ScienceOpen disciplines: Chemistry
                Data availability:
                ScienceOpen disciplines: Chemistry

                Comments

                Comment on this article