Abstract
A palladium supported on graphitic carbon nitride (Pd/g-C3N4) catalyzed carbonylative cyclization of 2-bromonitrobenzenes and alkynes has been developed for the expedite construction of quinolin-4(1H)-one scaffolds. By using a low loading heterogeneous palladium catalyst, Mo(CO)6 as both the CO surrogate and the reductant, and nitroarenes as the nitrogen source, the reaction proceeded well to give a variety of quinolin-4(1H)-ones in good to excellent yields.
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