Solvent-free chelation-assisted catalytic C-C bond cleavage of unstrained ketone by rhodium(I) complexes under microwave irradiation

Abstract

A highly efficient C-C bond cleavage of unstrained aliphatic ketones bearing β-hydrogens with olefins was achieved using a chelation-assisted catalytic system consisting of (Ph3P)3RhCl and 2-amino-3-picoline by microwave irradiation under solvent-free conditions. The addition of cyclohexylamine catalyst accelerated the reaction rate dramatically under microwave irradiation compared with the classical heating method. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.