The present invention provides a process for producing an optically active allene represented by formula (1):
wherein R2 and R3 are different and each represents a hydrogen atom, an optionally substituted C1-20 alkyl group or an optionally substituted C6-20 aryl group, and R4 represents an acyl group, which comprises reacting an allene derivative represented by formula (2)
wherein R1 represents a hydrogen atom or an optionally substituted acyl group and R2 and R3 have the same meaning as defined above, with an acylating agent having an acyl group represented by R4 when both R1s are each a hydrogen atom or with water when both R1s are each an acyl group represented by R4, in the presence of an enzyme catalyst. According to this production process, an optically active allene can be produced efficiently and enantioselectively from an allene derivative having a symmetrical structure.
本发明提供了一种生产由式(1)代表的光学活性烯烃的工艺:
其中 R2 和 R3 不同,且各自代表氢原子、任选取代的 C1-20 烷基或任选取代的 C6-20 芳基,以及 R4 代表酰基,该工艺包括使式 (2) 所代表的烯烃衍
生物反应
其中 R1 代表氢原子或任选取代的酰基,R2 和 R3 的含义与上述定义相同,当两个 R1 均为氢原子时,与具有 R4 所代表酰基的酰化剂反应;当两个 R1 均为 R4 所代表的酰基时,与
水反应。根据这种生产工艺,可以从具有对称结构的烯烃衍
生物中高效地、对映地生产出光学活性烯烃。