Page 1. HETEROCYCLES, Vol. 60, No. 10, 2003, pp. 2305 - 2313, Received, 30th June, 2003, Accepted, 28th August, 2003, Published online, 1st September, 2003 THE ELECTRONIC EFFECTS ON THE FORMATION OF N-ARYL- MALEIMIDES AND ISOMALEIMIDES Ljiljana Fruk and Duncan Graham* Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK ...