作者:Katarzyna Wińska、Aleksandra Grudniewska、Anna Chojnacka、Agata Białońska、Czesław Wawrzeńczyk
DOI:10.1016/j.tetasy.2010.02.031
日期:2010.4
The resolutions of five racemic cyclic alcohols: 6,6-dimethylcyclohex-2-en-1-ol (±)-5, 4,4-dimethylcyclohex-2-en-1-ol (±)-7, 5,5-dimethylcyclohex-2-en-1-ol (±)-11 and isomeric trans-(±)-13 and cis-piperitols (±)-14 are presented. They were resolved by enzymatic esterification with vinyl esters or by enzymatic hydrolysis of their racemic esters in phosphate buffer. The following lipases were used as
五个外消旋环醇的分辨率:6,6-二甲基环己-2-烯-1-醇(±) - 5,4,4-二甲基环己-2-烯-1-醇(±) - 7,5,5-二甲基环己-2-烯-1-醇(±) - 11和同分异构体的反式- (±) - 13和顺式- piperitols(±) - 14被呈现。通过用乙烯基酯进行酶促酯化反应或通过在磷酸盐缓冲液中酶解其外消旋酯来拆分它们。以下脂肪酶被用作生物催化剂:Novozyme 435(南极假丝酵母),Amano PS(伯克霍尔德酵母)和来自假丝酵母的脂肪酶。获得具有至少96%ee的所有醇异构体。