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Synlett 1992; 1992(10): 833-834
DOI: 10.1055/s-1992-21509
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A Novel Synthesis of 2,2-Difluorovinyl- and 2-Fluorovinylphosphorus Compounds from 2,2,2-Trifluoroethyl p-Toluenesulfonate

Junji Ichikawa* , Satoshi Yonemaru, Toru Minami
  • *Department of Apllied Chemistry, Kyushu Institute of Technology, Sensui-Cho, Tobata, Kitakyushu 804, Japan
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Publication Date:
08 March 2002 (online)

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2,2-Difluorovinylphosphines as well as their oxides and sulfides are synthesized in good yields via the generation of 2,2-difluorovinylboranes from 2,2,2-trifluoroethyl p-toluenesulfonate, followed by the reaction with chlorodiphenylphosphine in the presence of cuprous iodide. The reactions of 2,2-difluorovinylphospine oxide with nucleophiles proceed stereoselectively to afford monofluorovinylphosphine oxides.