A process for producing an optically active olefin represented by a formula
wherein R1 represents an organic group and X represents a polycyclic carbon ring group, by reacting a corresponding optically active ester derivative represented by a formula
wherein R1 and X are as defined above and R2 represents a hydrogen atom, an alkoxy group, an alkenyloxy group or a substituted or unsubstituted aralkyloxy group, with formic acid or a salt thereof in the presence of a catalyst comprising a palladium salt and a tertiary phosphine.
Said process makes it possible to produce, at a high yield at a high selectivity, an optically active olefin which has a physiological activity and is useful as a medicine or is useful as an intermediate for the synthesis of physiologically active steroids. Further, said process uses no harmful reagent such as mercury or the like. Thus, it is advantageous as an industrial process.
一种生产由式表示的光学活性烯烃的工艺
其中 R1 代表有机基团,X 代表多环碳环基团,通过与相应的由式表示的光学活性酯衍
生物反应制得的过程
其中 R1 和 X 如上定义,R2 代表氢原子、烷氧基、烯氧基或取代或未取代的烷氧基,与
甲酸或其盐在由
钯盐和叔膦组成的催化剂存在下反应。
上述工艺可以高产率、高选择性地生产出具有生理活性的光学活性烯烃,该烯烃可用作药物或合成具有生理活性的类
固醇的中间体。此外,上述工艺不使用
汞等有害试剂。因此,它作为一种工业工艺是非常有利的。