A process for producing a compound of the formula:
wherein R, is a hydrogen atom, an alkyl group or an alkenyl group and R2 is an alkyl group, an alkenyl group or an alkynyl group, which comprises treating a compound of the formula:
wherein R, and R2 are each as defined above and R is a hydrogen atom or a lower alkyl group in the presence of an acidic substance and water.
一种生产式化合物的工艺,其中 R 是氢原子、烷基或烯基,R2 是烷基、烯基或炔基,该工艺包括在酸性物质和
水的存在下处理式化合物,其中 R 和 R2 分别如上所定义,R 是氢原子或低级烷基。