Cyclopropane formation by nickel-catalysed electroreductive coupling of activated olefins and unactivated gem-dibromo compounds

S Sengmany, E Léonel, JP Paugam, JY Nédélec

Index: Sengmany, Stephane; Leonel, Eric; Paugam, Jean Paul; Nedelec, Jean-Yves Tetrahedron, 2002 , vol. 58, # 2 p. 271 - 277

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Citation Number: 20

Abstract

Cyclopropyl derivatives have been prepared with good yields by transition-metal catalysed electroreductive coupling of activated olefins 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 of cyclopropyl derivatives from activated olefins ( ...