1343513-79-0Relevant academic research and scientific papers
Monomeric triphenylphosphite palladacycles with N-imidazole ligands as catalysts of Suzuki-Miyaura and Sonogashira reactions
B?aszczyk, Izabela,Gniewek, Andrzej,Trzeciak, Anna M.
, p. 3601 - 3607 (2011)
Three monomeric triphenylphosphite palladacycles of the formula [PdCl(P-C)(im)], where P-C = P(OC6H4)(OC6H 5)2, im = 1-methylimidazole, 2, 1,2-dimethylimidazole, 3, and 1-butylimidazole, 4, were obtained in reaction of [PdCl(P-C)]2, 1, with the respective imidazoles. These complexes exhibited high catalytic activity in the Suzuki-Miyaura reaction in ethane-1,2-diol and in the Sonogashira reaction in ionic liquids, [bmim]BF4 and [bmim]PF 6. While the application of two imidazoles per palladium caused improvement of the reaction yield, an inhibiting effect was found in both reactions when 1-methylimidazole or 1-butylimidazole was used in 20-fold excess relative to palladium.
