Journal ArticleDOI
.alpha.-Methoxy-.alpha.-trifluoromethylphenylacetic acid, a versatile reagent for the determination of enantiomeric composition of alcohols and amines
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This article is published in Journal of Organic Chemistry.The article was published on 1969-09-01. It has received 2312 citations till now. The article focuses on the topics: Reagent.read more
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Asymmetric hydrogenation of activated keto compounds catalyzed by new chiral peralkyl-ampp rhodium complexes
TL;DR: In this paper, peralkyl aminophosphinephosphinite ligands (alkyl-AMPP ★ ) give neutral rhodium complexes active for the catalytic reduction of some activated ketones under atmospheric hydrogen pressure at ambient temperature.
Journal ArticleDOI
Stereoselective ketene-claisen rearrangement of chiral allylthioethers
TL;DR: In this article, a new method for the preparation of chiral β-branched, γ, δ-unsaturated thioesters and derivatives is presented, which involves the ketene-Claisen rearrangement of CHI.
Journal ArticleDOI
Site-Selective and Stereoselective O-Alkylation of Glycosides by Rh(II)-Catalyzed Carbenoid Insertion
Jicheng Wu,Xiaolei Li,Xiaotian Qi,Xiyan Duan,Weston L. Cracraft,Ilia A. Guzei,Peng Liu,Weiping Tang +7 more
TL;DR: This work described a practical and predictable method for the site- and stereoselective alkylation of carbohy-drate hydroxyl groups via Rh(II)-catalyzed insertion of metal carbenoid intermediates and demonstrated that the selective O-alkylation method could significantly improve the efficiency and stereOSElectivity of glycosylation reactions.
Journal ArticleDOI
Efficient kinetic resolution of organosilicon compounds by stereoselective esterification with hydrolases in organic solvent
Akinori Uejima,Toshiaki Fukui,Eiichiro Fukusaki,Tetsuo Omata,Takuo Kawamoto,Kenji Sonomoto,Atsuo Tanaka +6 more
TL;DR: In this article, the stereoselective esterification of three isomers of trimethylsilylpropanol, 1-trimethyl silyl-2-propanols and two primary alcohols was studied with five kinds of hydrolases in an organic solvent system.
Journal ArticleDOI
Asymmetric Hydrogenation of 2-Aryl-1-nitropropenes by Fermenting Bakers’ Yeast
TL;DR: 2-Aryl-1-nitropropenes were enantioselectively hydrogenated on C=C double bonds by incubation with fermenting bakers’ yeast to afford optically active 2-aryl- 1-Nitropropanes.
Related Papers (5)
Nuclear magnetic resonance enantiomer regents. Configurational correlations via nuclear magnetic resonance chemical shifts of diastereomeric mandelate, O-methylmandelate, and .alpha.-methoxy-.alpha.-trifluoromethylphenylacetate (MTPA) esters
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