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The direct C–H trifluoromethylation of alkynes and quinoxalinones using a graphene oxide/Langlois' reagent system.

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Oxazine derivatives R 0595Microwave-Assisted, Palladium-Catalyzed Intramolecular Direct Arylation for the Synthesis of Novel Fused Heterocycles. -In continuation of efforts to construct a diverse array of bioactive compounds, a synthesis of the fused heterocycles (VI) is developed. The procedure is based on the Pd-catalyzed intramolecular direct arylation of the o-bromobenzyl derivatives. -(WU, J.; NIE, L.; LUO, J.; DAI*, W.-M.;