Chem. J. Chinese Universities ›› 1998, Vol. 19 ›› Issue (4): 568.

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

LIU Shang-Zhong, CHEN Fu-Heng   

  1. Institute of Applied Chemistry, Key Laboratory of Pesticide Chemistry and Application Technology, China Agricultural University, Beijing, 100094
  • Received:1997-03-14 Online:1998-04-24 Published:1998-04-24

Abstract: Four chiral copper(Ⅱ) complexes derived from two novel chiral compounds (S)-(-)-α-substituted-2-hydroxy-5-methylbenzylamine were synthesized. All the complexes were used as catalysts in the asymmetric cyclopropanation reaction of styrene, 1,1-diphenylethylene and 2,5-dimethyl-2,4-hexadiene. It is found that the more effective catalysts are related to complexes with ligands prepared from optically active amine and 2-hydroxy-1-naphthylaldehyde.

Key words: Optically active amine, Olefins, Copper complex, Asymmetric cyclopropanation

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