Chiral tetrahedral complex catalyzing asymmetric addition of diethylzinc to benzaldehyde  

作　　者：张伟强 陈立仁 殷元骐 韩小茜 

出　　处：《Science China Chemistry》2002年第5期481-487,共7页中国科学（化学英文版）

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 29871061).

摘　　要：The optical active alkyne-bridged Mo-Co heterometal complexes are synthesized by the chiral phase transfer catalyst (N-benzylcinchorin chloride) induced metal exchange reaction. The complex is used as catalyst to promote the asymmetric addition of diethylzinc to benzaldehyde. The ee value of the product alcohol is 5.7%, which illustrates the asymmetric induction of the tetrahedral framework chirality in asymmetric catalysis reaction for the first time.The optical active alkyne-bridged Mo-Co heterometal complexes are synthesized by the chiral phase transfer catalyst (N-benzylcinchorin chloride) induced metal exchange reaction. The complex is used as catalyst to promote the asymmetric addition of diethylzinc to benzaldehyde. The ee value of the product alcohol is 5.7%, which illustrates the asymmetric induction of the tetrahedral framework chirality in asymmetric catalysis reaction for the first time.

关 键 词：TETRAHEDRAL framework chirality  Mo-Co HETERONUCLEAR complex  asymmetric catalytic addition  diethylzinc  benzaldehyde. 

分 类 号：O643.3[理学—物理化学]