The effect of catechin derivatives on the enantioselectivity of lipase-catalyzed hydrolyses of alkynol benzoate esters
摘要:
Polyphenols. such as (+)-catechin and pyrogallol could be used to enhance stereochemical control in the lipase-catalyzed hydrolysis of alkynol benzoate esters, leading to increased enantioselectivities in the kinetic resolution of alkynols with lipase, Amano AH. (C) 2002 Elsevier Science Ltd. All rights reserved.
NMR analysis of chiral alcohols and amines: development of an environmentally benign “in tube” procedure with high efficiency and improved detection limit
作者:Nikolay V. Orlov、Valentine P. Ananikov
DOI:10.1039/c1gc15191f
日期:——
NMR analysis of chiral alcohols and amines using readily available enantiopure MPA (α-methoxy-α-phenylacetic acid) and MTPA (α-methoxy-α-trifluoromethylphenylacetic acid) as chiralderivatizingagents. The procedure requires less than 5 min (including sample preparation time) for analysis using routine NMR hardware and allows accurate measurements for <0.01 mg of the sample of chiral compounds. Direct