Novel preparation of σ-alkynyl complexes of transition metals by copper(I) iodide-catalysed dehydrohalogenation

Authors:
  • KSKenkichi Sonogashira
    Kenkichi Sonogashira
  • TYTetsuya Yatake
    Tetsuya Yatake
  • YTYasuo Tohda
    Yasuo Tohda
  • STShigetoshi Takahashi
    Shigetoshi Takahashi
  • NHNobue Hagihara
    Nobue Hagihara
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Abstract
Transition metal alkynyl complexes have been prepared conveniently in high yields under mild conditions by the direct reaction of acetylenes with metal halides in the presence of catalytic amounts of copper(I) iodide in diethylamine.