Page 1. HETEROCYCLES, Vol. 57, No. 7, 2002, pp. 1211-1217, Received, 25th March, 2002 EFFECTS OF BASE, ELECTROPHILE, AND SUBSTRATE ON THE SELECTIVE ALKYLATION OF HETEROAROMATIC SYSTEMS Thomas E. Smith,* Michelle S. Mourad, and Alan J. Velander Department of Chemistry, Williams College, 47 Lab Campus Drive, Williamstown, MA 01267, USA. tsmith@williams.edu ...