No abstract

A Pd-catalyzed novel and efficient protocol has been developed for the direct functionalization of 2-phenyl-4H-benzo[d][1,3]oxazin-4-ones with α-oxo carboxylic acids resulting in 5H-benzo[4,5][1,3]oxazino [2,3-a]isoindole-5,11(6aH)-diones using (NH 4 ) 2 S 2 O 8 as effective oxidant and AgNO 3 as co-oxidant. All the explored substrates were found to be compatible for this transformation and delivered the corresponding desired products in moderate to excellent yields.

We are reporting a palladium catalyzed microwave assisted halogenation of 3-phenyl-2H-benzo[b][1,4]oxazine-2-ones.

‘On-water’ Rh-catalysed, regioselective chalcogenation of 3-phenyl quinoxolinones; its kinetic studies and late-stage functionalisation studies are reported.

A sustainable and environment-friendly approach for the regioselective acylation of 1-methyl-3-phenyl quinoxaline-2(1H)-ones has been developed in water. The present protocol requires palladium acetate as a catalyst and provides a wide...