Enzymatic resolution of 2-hydroxy-4-phenylbutanoic acid and 2-hydroxy-4-phenylbutenoic acid
摘要:
Racemic 2-hydroxy-4-phenylbutanoic acid and 2-hydroxy-4-phenyl-butenoic acid have been resolved using a lipase. In each ease, the (R)-2-hydroxy and the (S)-2-acetoxy acids were isolated with high enantiomeric excess and yield.
Lipase-catalyzed irreversible transesterification using enol esters: XAD-8 immobilized lipoprotein lipase-catalyzed resolution of secondary alcohols
作者:Shu-Hui Hsu、Shihn-Sheng Wu、Yi-Fong Wang、Chi-Huey Wong
DOI:10.1016/s0040-4039(00)97076-x
日期:1990.1
Procedures for the preparation of XAD-8 immobilized lipoprotein lipase and the resolution of secondary alcohols of synthetic value in organic solvents using this immobilized enzyme have been developed.
Process for racemization of optically active 4-phenylbutanoic acid esters
申请人:KURARAY CO., LTD.
公开号:EP0421472A1
公开(公告)日:1991-04-10
A process for the racemization of optically active 4-phenylbutanoic acid esters which comprises treating optically active 4-phenylbutanoic acid esters of the general formula (I)
wherein R¹ represents a hydroxy group, a hydroxy group protected by a vinyl ether, or a lower acyloxy group and R² repesents a lower alkyl group with a base selected from the group consisting of alkali metal alcoholates, alkali metal hydrides, and alkali metal amides is provided.