申请人:DAISO CO., LTD.
公开号:EP0745681A2
公开(公告)日:1996-12-04
A novel method for preparing an optically active chlorohydrin compound and an optically active 1,2-diol compound and/or optically active 3-hydroxy-γ-butyrolactone which are useful as intermediates for preparing medicaments, agricultural chemicals, physiologically active substances and ferroelectric liquid crystals, which comprises treating a racemic chlorohydrin compound having the formula:
[wherein R1 is H or lower alkyl group; and R2 is a substituted or unsubstituted lower alkyl group when R1 is H; or R2 is H when R1 is a lower alkyl group] with a microorganism, thereby selectively degrading only one of optical isomers thereof, and recovering the remaining other optically active chlorohydrin and isolating optically active 1,2-diol compound and/or optically active 3-hydroxy-γ-butyrolactone converted by the reaction.
一种制备光学活性氯海德林化合物和光学活性1,2-二醇化合物和/或光学活性3-羟基-γ-丁内酯的新方法,该方法可用作制备药物、农药、生理活性物质和铁电液晶的中间体,其包括用具有以下式子的外消旋氯海德林化合物进行处理:
[其中 R1 为 H 或低级烷基;当 R1 为 H 时,R2 为取代或未取代的低级烷基;或当 R1 为低级烷基时,R2 为 H]用微生物处理,从而选择性地只降解其中一种光学异构体,并回收剩余的其他光学活性氯醇,分离出光学活性 1,2-二醇化合物和/或由反应转化的光学活性 3-羟基-γ-丁内酯。