Method for biotechnologically preparing optically active alpha-cyano-3-phenoxybenzyl alcohol
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0118163A1
公开(公告)日:1984-09-12
(S)-α-cyano-3-phenoxybenzyl alcohol, which is the alcohol moiety of pyrethroids, effective insecticides, is prepared by reacting an ester of racemic (R,S)-a-cyano-3-phenoxybenzyl alcohol with an esterase, wherein the ester of (S)-α-cyano-3-phenoxybenzyl alcohol is predominantly hydrolyzed. Thus, asymmetric hydrolysis permits optical resolution of the (S)-isomer alcohol from the ester of its antipode efficiently. The esterase may be of microorganism or animal pancreas or liver.
(S)-α-氰基-3-苯氧基苄醇是有效杀虫剂拟除虫菊酯的醇基,其制备方法是将外消旋(R,S)-a-氰基-3-苯氧基苄醇的酯与酯酶反应,其中(S)-α-氰基-3-苯氧基苄醇的酯主要被水解。 因此,不对称水解允许从其反式酯中有效地光学分辨出(S)-异构体醇。 酯酶可以是微生物或动物胰腺或肝脏。