Copper(I)-catalysed amidation and successive oxidation of benzylic C(sp3)-H bond: synthesis of 1H-pyrrolo[3,4-b]quinoline-1,3(2H)-diones
文摘
An efficient copper(I)-catalysed intramolecular arylmethyl C(sp3)–H direct oxidative amidation reaction has been developed for the preparation of drug-like 1H-pyrrolo[3,4-b]quinoline-1,3(2H)-diones from readily available 2-methyl-3-carbamoyl-quinolines.