| Abstract: | An efficient and eco-friendly carbon nitride nanosheet (NM-g-C3N4)-catalyzed decarboxylative coupling reaction of imidazo-fused heterocycles (i.e., imidazo1,2-a]pyridines, benzod]imidazo2,1-b]thiazole) with N-phenylglycines in dimethyl carbonate (DMC) has been developed. The toxic solvents, external oxidants, and restricted reaction conditions could be effectively avoided in this powerful and sustainable protocol. Remarkably, NM-g-C3N4 could be straightforwardly recovered by simple centrifugation and recycled and reused at least 7 times without an obvious decrease in catalytic activity.  |
