Patent ID: 6852871

Claim:
A method for producing an optically active salicylaldimine copper complex, comprising reacting a copper hydroxide (II) with an optically active salicylaldimine compound of formula (1): wherein R 1 and R 2 are the same or different and independently represent a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group, X 1 and X 2 are the same or different and independently represent a hydrogen atom, a substituted or unsubstituted lower alkyl group, a lower alkoxy group, a nitro group, a lower alkoxycarbonyl group or a halogen atom, and the symbol * designates an asymmetric carbon atom, provided that X 1 and X 2 on adjacent carbon atoms, together with the carbon atom to which they are boded form a benzene ring, in an organic solvent.