Microwave-assisted copper promoted N-arylation of amines with aryl boronic acids/salts on a KF-alumina surface

An experimentally simple microwave-assisted solvent-free N-arylation of primary amines with sodium tetraphenylborate or arylboronic acids, promoted by inexpensive cupric acetate, on the surface of KF-alumina is reported. The reaction is selective for mono-N-arylation, and a variety of functional groups are tolerated in the process.