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Synlett 1997; 1997(7): 781-782
DOI: 10.1055/s-1997-5777
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Synthesis of an Axially Dissymmetric Biphenylcarboxylate Ligand, BDME, and Asymmetric Cyclopropanation of Olefins with Diazoacetate Catalyzed by Its Dirhodium(II) Complex

Hitoshi Ishitani, Kazuo Achiwa*
  • *School of Pharmaceutical Sciences, University of Shizuoka, Yada 52-1, Shizuoka 422, Japan
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Publication Date:
31 December 2000 (online)

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An axially dissymmetric biphenylcarboxylate ligand, BDME (4), has been newly designed and prepared. The dirhodium(II) complex (1) of (4) proved to be an excellent catalyst in asymmetric cyclopropanation of styrene with d-menthyl diazoacetate affording d-menthyl cis-2-phenyl-cyclopropane-1-carboxylate of 99% de.

dirhodium(II) - rhodium(II) - carbene - styrene - asymmetric cyclopropanation

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