Patent ID: 6469198
Filing Date: 2002-10-22
Classification: C07B,C07C

Abstract:
A chiral copper complex catalyst composition,which is obtained by contacting an optically active N-salicylideneaminoalcohol compound of formula (1): with a mono-valent or di-valent copper compound in an inert solvent,wherein R1 represents an alkyl group which may be substituted with a group selected from an alkoxy group, an aralkyloxy group, an aryloxy group and a cycloalkoxy group, an aralkyl, aryl or cycloalkyl group all of which may be substituted with a group selected from an alkyl group, an alkoxy group, an aralkyloxy group, an aryloxy group, and a cycloalkoxy group, R2 represents a hydrogen atom, an alkyl group, a cycloalkyl group, or an aralkyl or phenyl group which may be substituted with a group selected from an alkyl group, an alkoxy group, an aralkyloxy group, an aryloxy group and a cycloalkoxy group, X1 and X2 are the same or different and independently represent a hydrogen atom, a halogen atom, a nitro group, an alkyl group, an alkoxy group or a cyano group, and two adjacent X1 and X2 together with the benzene ring to which they are bonded may form a 1-hydroxy-2- or 2-hydroxy-1-naphthyl group, and the carbon atom denoted by â€œ*â€  is an asymmetric carbon atom having either an S or R configuration, and the amount of the mono-valent or di-valent copper compound is less than 1 mole per 1 mole of the optically active N-salicylideneaminoalcohol compound of formula (1).