Copper-catalyzed direct cross coupling of 1,3,4-oxadiazoles with trans-β-halostyrenes: synthesis of 2-E-vinyl 1,3,4-oxadiazoles

The first direct C-H alkenylation of 1,3,4-oxadiazoles with trans-beta-halo olefinic system has been carried out using a combination of Cul/DMEDA as a catalyst. A wide range of 2-E-vinyl-substituted oxadiazoles were obtained in high yields (85-93%). (C) 2011 Elsevier Ltd. All rights reserved.