文摘
An efficient tandem copper(I)-catalyzed intramolecular allylic C(sp3)–H functionalization/C–N formation/oxidative reaction of 6-methyl-dihydropyrimidine-2-one-5-carboxamides has been developed for the synthesis of substituted 2H-pyrrolo[3,4-d]pyrimidine-2,5,7(3H,6H)-trione derivatives in a single step in good to excellent yields.