申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0288297A2
公开(公告)日:1988-10-26
Disclosed are novel optically active benzene derivatives represented by the formula (I):
wherein R represents an alkyl or alkoxyalkyl group having 1 to 20 carbon atoms, which group may contain a halogen; Z represents a hydrogen atom or a halogen atom; ℓ and n each represents a number of 0 or 1; and * indicates asymmetric carbon atom, and
a process for preparing the above optically active benzene derivative which comprises debenzylating an optically active benzyl derivative represented by the formula (II):
wherein R, Z, ℓ, n and * have the same meanings as defined above, and A represents a hydrogen atom, a lower alkyl group, a lower alkoxyl group or a halogen atom.
本发明公开了由式(I)代表的新型光学活性苯衍生物:
其中 R 代表具有 1 至 20 个碳原子的烷基或烷氧烷基,该基团可含有卤素;Z 代表氢原子或卤素原子;ℓ 和 n 各代表 0 或 1 的数字;* 表示不对称碳原子,以及
制备上述光学活性苯衍生物的工艺,该工艺包括去苄基化式 (II) 所代表的光学活性苄基衍生物:
其中 R、Z、ℓ、n 和 * 的含义与上述定义相同,A 代表氢原子、低级烷基、低级烷氧基或卤素原子。