METHOD FOR PRODUCING OPTICALLY ACTIVE CYCLOPROPANE CARBOXYLIC ACID ESTER COMPOUND, ASYMMETRIC COPPER COMPLEX, AND OPTICALLY ACTIVE SALICYLIDENEAMINOALCOHOL COMPOUND
申请人:Masumoto Katsuhisa
公开号:US20110166372A1
公开(公告)日:2011-07-07
A process for producing an optically active cyclopropanecarboxylic acid ester compound represented by the formula (4):
(wherein R
5
, R
6
and * each represents the same meaning as defined below), comprising reacting a diazoacetic acid ester represented by the formula (2):
N
2
CHCO
2
R
5
(2)
(wherein R
5
represents an alkyl group having 1 to 15 carbon atoms or the like) with a compound represented by the formula (3):
(wherein R
6
represents an alkyl group having 1 to 15 carbon atoms or the like), in the presence of an asymmetric copper complex obtained by reacting a copper compound and an optically active salicylideneaminoalcohol compound represented by the formula (1):
(wherein R
1
represents an alkyl group having 1 to 4 carbon atoms or the like, R
2
represents a hydrogen atom or the like, R
3
and R
4
independently represent a hydrogen atom or the like, and * represents an asymmetric center).
生产光学活性环丙基羧酸酯化合物的过程如下:将式(2)表示的重氮乙酸酯(其中R5代表具有1至15个碳原子的烷基基团或类似物)与式(3)表示的化合物(其中R6代表具有1至15个碳原子的烷基基团或类似物)在光学活性水杨醛亚氨基醇化合物与铜化合物反应得到的不对称铜配合物的存在下反应,所述光学活性水杨醛亚氨基醇化合物的结构如下:式(1)(其中R1代表具有1至4个碳原子的烷基基团或类似物,R2代表氢原子或类似物,R3和R4独立地代表氢原子或类似物,*代表不对称中心)。