Palladium-catalyzed oxidative C–H/C–H cross-coupling of 1-substituted 1,2,3-triazoles with furans and thiophenes†
Abstract
Palladium-catalyzed heteroarylation of 1-substituted 1,2,3-triazoles with furans and thiophenes has been developed in the presence of pyridine and Ag2CO3. The procedure is suitable for the regioselective preparation of 1,5-disubstituted 1,2,3-triazoles through conventional heating at reaction temperatures of 90–100 °C for 18 h.