Method for producing optically active cyclopropane carboxylic acid ester compound, asymmetric copper complex, and optically active salicylideneaminoalcohol compound

摘要

A method for producing an optically active cyclopropane carboxylic acid ester compound represented by formula (4), said method being characterized in that a diazoacetic acid ester represented by formula (2) and a compound represented by formula (3) are reacted in the presence of an asymmetric copper complex which is obtained by reacting a copper compound with an optically active salicylideneaminoalcohol compound represented by formula (1). (In formula (1), R