Chinese Journal of Catalysis

Chinese Journal of Catalysis ›› 2007, Vol. 28 ›› Issue (11): 934-936.

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Asymmetric Cyclopropanation of β-(-)-Pinene Catalyzed by Copper Complexes

LI Zhengning1*, JIANG Lan1, LIU Gailing1, CHEN Huilin2   

  1. 1 Liaoning Key Laboratory of Bioorganic Chemistry, College of Environmental and Chemical Engineering, Dalian University, Dalian 116622, Liaoning, China; 2 Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023, Liaoning, China
  • Received:2007-11-25 Online:2007-11-25 Published:2011-10-13

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Abstract: The asymmetric cyclopropanation of β-(-)-pinene with diazoacetate was performed in the presence of copper salicylaldehydate, copper diketonates, and copper-Schiff base complexes as the catalyst, respectively. The relationship between the stereoselectivity for the reaction and structure of the copper-Schiff base was studied, and high stereoselectivity was achieved.

Key words: cyclopropanation, stereoselectivity, copper complex, β-(-)-pinene, diazoacetate