157604-32-5Relevant articles and documents
Nonenzymatic kinetic resolution of secondary alcohols: Enantioselective SN2 displacement of hydroxy groups by halogens in the presence of chiral BINAP
Sekar,Nishiyama
, p. 3603 - 3604 (2001)
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Synthesis method of chiral trans-2-substituted naphthenic alcohol
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Paragraph 0035-0047; 0066-0067, (2021/09/08)
The invention relates to a synthesis method of chiral trans-2-substituted naphthenic alcohol. The invention provides a method for synthesizing chiral trans-cycloalkanol through asymmetric hydrogenation of palladium-catalyzed 2-substituted cyclic ketone. According to the method,a chiral diphosphine P-P * complex of metal palladium is taken as a catalyst, an acid additive is used in cooperation, asymmetric hydrogenation is carried out on a 2-substituted cyclic ketone compound to obtain a corresponding chiral trans-cycloalkanol compound. the enantiomeric excess of the chiral trans-cycloalkanol compound can reach 97% at most, and the trans-selectivity of the chiral trans-cycloalkanol compound is up to 20: 1. The method is simple and convenient to operate, practical, easy to implement, high in yield, high in atom economy and environment-friendly; the catalyst is commercially available; the reaction conditions are mild; and the method has a potential practical application value.
Organolithium/chiral Lewis base/BF3: A versatile combination for the enantioselective desymmetrization of meso-epoxides
Vrancken, Emmanuel,Alexakis, Alexandre,Mangeney, Pierre
, p. 1354 - 1366 (2007/10/03)
BF3 can be used in combination with organolithium/strong Lewis base complexes for the enantioselective nucleophilic ring-opening or the carbenoidic rearrangement of various meso-oxiranes with excellent yields and ee values of up to 87%. Mechanistic aspects of these reactions are considered. Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.