申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0381434A1
公开(公告)日:1990-08-08
A process for producing an optically active alcohol of the formula
[R⁴ and R⁵ are different and each is a lower alkyl group, an aryl group, and aralkyl group or a 2-substituted-1-triazoleethylene group represented by the general formula (III)
(R⁶ is a halogen- or haloalkyl-substituted or unsubstituted phenyl group or a cycloalkyl group)] comprises allowing
(A) an optically active amino alcohol represented by the general formula (I)
(R¹ is an aryl group, R² is a lower alkyl group, R³ is a hydrogen atom or a lower alkyl group, and the carbon atoms having a mark * are each an asymmetric carbon atom) and an acid, or a salt of the optically active amino alcohol (I) and an acid,
(B) a metal borohydride, and
(C) at least one of water, sulfides, cyclic ethers and ethers of mono alcohols
to react with
a prochiral ketone represented by the general formula (II)
[R⁴ and R⁵ are as defined above].
一种生产式如下的光学活性醇的工艺
[R⁴和R⁵是不同的,且各自是由通式(III)代表的低级烷基、芳基、芳烷基或 2-取代的-1-三唑乙烯基团
(R⁶为卤素或卤代烷基取代或未取代的苯基或环烷基)]包括允许
(A) 由通式(I)代表的光学活性氨基醇
(R¹为芳基,R²为低级烷基,R³为氢原子或低级烷基,带有标记*的碳原子均为不对称碳原子)和酸,或光学活性氨基醇(I)和酸的盐、
(B) 金属硼氢化物,以及
(C) 水、硫化物、环醚和单醇醚中的至少一种
与下列物质反应
与通式 (II) 所代表的手性酮反应
[R⁴ 和 R⁵ 如上定义]。