Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (2): 216.

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Synthesis of Chiral Copper(Ⅱ)Complexes and Their Application in Asymmetric Cyclopropanation of Olefins

CHEN Guang-Ming, CHEN Fu-Heng, ZHOU Chang-Hai   

  1. Institute of Applied Chemistry, Beijing Agricultural University, Beijing, 100094
  • Received:1994-02-28 Revised:1994-06-01 Online:1995-02-24 Published:1995-02-24

Abstract: Sixteen chiral copper(Ⅱ) complexes derived from(R)-(+)-or(S)-(-)-2,2'-diamino-1,1'-binaphthyl(DABN) were synthsized.All the complexes were used as enentio selective catalysts in the asymmetric cyclopropanation reactions of 1,1-diphenylethylene, styrene and 2,5-dimethyl-2,4-hexadiene.It was found that the more effective catalysts are related to complexes with ligands prepared from optically active DABNand salicylaldehyde or 2-hydoxy-1-naphthylaldehyde.

Key words: 2,2'-Diamino-1,1'-binaphthyl, Copper complex, Olefins, Asymmetric cyclopropanation

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