Production of enantiomerically enriched 1-(mono-, di- or trinitro-phenyl)-ethylamine derivatives (I) comprises reacting a nitro-acetophenone derivative (III) with a hydroxylamine compound (IV), reducing the obtained oxime compound (V) using a complex borohydride and an acid in organic solvent to...
ChemInform Abstract: Synthesis of Enantiomerically Enriched α‐Bromonitriles from Amino Acidsnitriles (acyclic compoundsdiastereoselective syntheses, enantioselective syntheses (incl. cis/trans‐isomerismamino acids, peptidesNo abstract is available for this article.doi:10.1002/chin.201321054...
Production of enantiomerically enriched 1-(mono-, di- or trinitro-phenyl)-ethylamine derivatives (I) comprises reacting a nitro-acetophenone derivative (III) with a hydroxylamine compound (IV), reducing the obtained oxime compound (V) using a complex borohydride and an acid in organic solvent to...
Enantiomerically enriched allystannanes from chiral allyllithium derivatives and their highly regio-, diastereo- and enantioselective hydroxyalkylation 来自 Semantic Scholar 喜欢 0 阅读量: 24 作者:Thomas,Krmer,and,Jan-Robert,Schwark,and,Dieter,Hoppe ...
ChemInform Abstract: Preparation of Enantiomerically Enriched α-Alkoxystannanes by Regioselective Acetal Exchange or Acetal Hydrolysis.stereochemistry (general, optical resolutionChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading ...
Synthesis of enantiomerically enriched 4-aryl-3,4-dihydrocoumarins (microreview)doi:10.1007/s10593-016-1922-7Several synthetic approaches are known for the preparation of chiral 4-aryl-3,4-dihydrocoumarins (DHCs). This article considers recently discovered methods for the synthesis of chiral DHCs: ...
The substrate controlled diastereoselective route makes available structurally attractive morpholine-fused benzimidazole derivatives with two chiral centers in enantiomerically enriched forms. The preliminary biological evaluation shows scope for potential applications....
Enantiomerically enriched thiiranium ion 5 has been prepared by silver-assisted ionization of chloro sulfide 4 at 20°C. This thiiranium ion is configurationally stable in solution up to room temperature as demonstrated by the stereospecific capture of the ion by various oxygen- and nitrogen-based...
ChemInform Abstract: Synthesis of Enantiomerically Enriched α-Sulfenylated Ketones and Aldehydesmercaptans, thioethers (benzene compounds... YOUN, J.-H.,HERRMANN, R.,UGI, I. - 《ChemInform》 被引量: 6发表: 1987年 Free-radical cyclization of enantiomerically enriched 2- p -tolylthio derivatives...
Myers et al., 1996, " An improved preparation of highly enantiomerically enriched (R)-(+)-4-tert-butyldimethylsiloxy-2-cyclopenten-1-one ". Tetrahedron Lett. 37(18):3083-86.MYERS, ANDREW G. ET AL: " An improved preparation of highly enantiomerically enriched (R)-(+)-4-tert-butyl...