N-tripodal ligands to generate copper catalysts for the syndiotactic polymerization of methyl-methacrylate: Crystal structures of copper complexes
作者:Clément Lansalot-Matras、Fabien Bonnette、Emmanuel Mignard、Olivier Lavastre
DOI:10.1016/j.jorganchem.2007.11.010
日期:2008.2
A library of N-tripodal ligands, based on a central nitrogen atom connected to three different functionalized arms, was investigated via a parallel approach for the polymerization of methyl-methacrylate (MMA) in presence of late transition metal salts. Copper salts CuCl2 and Cu(OAC)(2) in combination with N-(2-furanylmethyl)-N-(1-3,5-dimetliyi-1H-pyrazolylmetliyl)-N- (phenylmethyl)amine were detected as efficient catalysts for the syndiotactic polymerization of MMA ([rr] up to 78%). Kinetic studies and X-ray structures of the best catalysts were reported. (C) 2007 Published by Elsevier B.V.