Ligand-free Suzuki–Miyaura coupling reaction of an aryl chloride using a continuous irradiation type microwave and a palladium nanoparticle catalyst: effect of a co-existing solid

Abstract

We have explored the effect of a co-existing metal in the ligand-free Suzuki–Miyaura coupling reaction of an aryl chloride, which is promoted by a “continuous irradiation type microwave” and a “palladium nanoparticle catalyst”, and found that the co-existing metal affects this reaction due to its absorption ability of microwave energy in the reaction system. We also observed that spiking occurred more frequently in the presence of a co-existing metal.