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Paper | Regular issue | Vol 68, No. 11, 2006, pp.2259-2267
Published online, 3rd October, 2006
DOI: 10.3987/COM-06-10841
Efficient Microwave Assisted Syntheses of Unsubstituted Cyclic Imides

Yousef M. Hijji* and Ellis Benjamin

*Department of Chemistry, Morgan State University, Baltimore, MD 21251.USA

Abstract

A number of cyclic imides were synthesized from cyclic anhydrides using ammonium chloride (NH4Cl), and 4-N,N-dimethylaminopyridine (DMAP) or with ammonium acetate (NH4OAc) under microwave irradiation in both a mono-mode and a conventional microwave. Several substituted succinic anhydrides used as reactants were synthesized efficiently by Diels-Alder reactions of maleic anhydride with 1,3-cyclohexadienes in 63-82% for the mono-mode and 72-92% in the conventional microwave ovens. Cyclic imides were synthesized with yields from 50 - 98%.