Ionic Acylating Agents for the Enzymatic Resolution of sec-Alcohols in Ionic Liquids
作者:Nuno M. T. Lourenço、Carlos M. Monteiro、Carlos A. M. Afonso
DOI:10.1002/ejoc.201000640
日期:2010.12
Potential acylating agents containing pendant ionic groups have been screened for the enzymatic kinetic resolution of rac-secondary alcohols in ionic liquids with CAL-B as bio-catalyst. This study has allowed the identification of the 1-methyl-3-alkylimidazolium cation attached to a carboxylate group through a C 10 -alkyl chain as an efficient acylating agent for this transformation. This strategy
已经筛选了含有侧链离子基团的潜在酰化剂,用于以 CAL-B 作为生物催化剂的离子液体中外消旋仲醇的酶动力学拆分。该研究允许鉴定通过 C 10 -烷基链连接到羧酸盐基团的 1-甲基-3-烷基咪唑鎓阳离子作为该转化的有效酰化剂。该策略应用于 2-羟基环己烷甲腈的拆分,其中 1R,2S 对映体以 35% ee(73% 产率)分离,1S,2R 对映体以 97% ee(23% 产率)分离。