‘Easy-on, easy-off’ resolution of chiral 1-phenylethylamine catalyzed by Candida antarctica lipase B
摘要:
An 'easy-on, easy-oft process for the effective resolution of (+/-)-1-phenylethylamine was designed using the lipase B of Candida antarctica. This two step lipase-catalyzed process for the resolution of a chiral arylalkylamine involves a high-conversion enantioselective condensation of (R)-(+)-1-phenylethylamine with capric acid (conversion 99%, <24 h), followed by the hydrolysis of the corresponding synthesized (R)-(+)-amide (conversion 98%, 48 h). As a result, this efficient enzymatic process yields both (R)- and (S)-enantiomers of I-phenylethylamine in high enantiomeric purity. (c) 2007 Elsevier Ltd. All rights reserved.