申请人:ISHIHARA SANGYO KAISHA, LTD.
公开号:EP0532058A1
公开(公告)日:1993-03-17
A process for producing a compound of the general formula (A):
wherein each of R¹ and R₂ is a hydrogen atom or an alkyl group, n is 0 or 1 and Hal is a halogen atom; comprises oxidising and halogenating a compound of the general formula (B):
wherein R₁, R₂ and n are as defined above, or a salt thereof.
一种生产通式(A)化合物的工艺:
其中 R¹ 和 R₂ 各为氢原子或烷基,n 为 0 或 1,Hal 为卤素原子;包括氧化和卤化通式 (B) 的化合物:
其中 R₁、R₂ 和 n 如上定义,或其盐。