A new and the first metal organic framework for the synthesis of aryl ketones via carbonyl-Heck cross-coupling reaction of aryl halides and aldehydes

Abstract

A new MOF (Co-TIST) was synthesized from 2,4,6-tris (imidazol-1-yl)-1,3,5-striazine (TIST) and cobalt nitrate. TIST was prepared from the reaction of cyanuric chloride and imidazole and used as a ligand for the formation of MOF. After characterization of Co-TIST by different methods, we have investigated the carbonyl-Heck cross-coupling reaction of aldehydes with aryl halides in the presence of Co-TIST as a new heterogeneous catalyst. Various ketones were obtained in good to high yields by this method. The reactions did not require high temperature, additives, or large amounts of the catalyst. The catalyst was recycled in five consecutive runs with unimportant decrease in its catalytic activity. Notably, this is the first report of using a MOF for the carbonylHeck cross-coupling reaction of aryl halides and aldehydes.