Title of article :
Application of 3-aroyl-4(5)-arylimidazols as efficient ligands in Pd-catalyzed Heck reactions
Author/Authors :
AMINI, Mojtaba university of maragheh - Faculty of Science - Department of Chemistry, مراغه, ايران , AMINI, Motahhareh shahrood university of technology - School of Chemistry, شاهرود, ايران , EFTEKHARI-SIS, Bagher university of maragheh - Faculty of Science - Department of Chemistry, مراغه, ايران , KEIVANLOO, Ali shahrood university of technology - School of Chemistry, شاهرود, ايران
Abstract :
The Heck coupling of haloarenes with various alkenes was successfully performed in the presence of 0.25 mol% PdCl 2 and 0.5 mol% biphenyl-4-yl-[4(5)-(biphenyl-4-yl)-1 H -imidazol-2-yl]ketone 2f as a ligand with Na2CO3 as optimal base, in a 1:1 mixture of H 2 O/DMF as the reaction solvent at 80 °C for 8 h. Imidazole 2f was found to be an inexpensive, air-stable, easily available, and efficient ligand in the palladium-catalyzed Heck reactions of aryl iodides (76%–94%), bromides (52%–79%), and chlorides (40%–70%).
Keywords :
Aroylimidazoles , PdCl2 , Heck reaction , aqueous medium
Journal title :
Turkish Journal of Chemistry
Journal title :
Turkish Journal of Chemistry
