We report herein the first examples of polymer supported aryl-heteroaryl C-N cross-coupling reactions and dramatically decreased reaction times upon microwave irradiation; The methodology provides easy access to N-arylated heterocycles from heterocycles bearing an N-H bond and readily available arylboronic acids in the presence of copper(II) acetate and pyridine. (C) 1999 Published by Elsevier Science Ltd. All rights reserved.