Electrochemical cross-coupling between 2-halopyridines and aryl or heteroaryl halides catalysed by nickel-2,2'-bipyridine complexes

  • Gosmini C
  • Lasry S
  • Nedelec J
 et al. 
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Abstract

2-Arylpyridines can be obtained in good to high yields by electrochemical reductin using the sacrificial anode process and catalysis by nickel-2,2'-bipyridine (bpy) complexes. In a first approach functionalized arylzinc species are prepared in DMF as solvent by electrolytic reduction of the corresponding aryl-bromides or -chlorides in the presence of ZnBr2and Ni(II)-bpy complexes and then coupled with 2-chloropyridine. In a second approach the cross-coupling occurs from the electrochemical reduction of a stoichiometric mixture of an aryl halide and 2-halopyridine in DMF in the presence of NiBr2bpy as catalyst.

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Authors

  • Corinne Gosmini

  • Sarah Lasry

  • Jean Yves Nedelec

  • Jacques Perichon

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