Cyclopropane formation by nickel-catalysed electroreductive coupling of activated olefins and unactivated gem-dibromo compounds
作者:Stéphane Sengmany、Eric Léonel、Jean Paul Paugam、Jean-Yves Nédélec
DOI:10.1016/s0040-4020(01)01133-4
日期:2002.1
Cyclopropylderivatives have been prepared with good yields by transition-metal catalysed electroreductive coupling of activatedolefins and unactivated gem-dibromo compounds. This electrolysis is characterized by the use of a Fe/Ni catalyst system, acetonitrile as the solvent and a catalytic amount of triphenylphosphine as ligand. This procedure is a good alternative to the classical preparations