Copper-catalyzed domino cyclization of 2-alkynylanilines followed by C–C bond formation with quinones is an efficient method of accessing 3-indolyl quinones.
An efficient method for metal-free C–C bond formation between p-quinone methides (p-QMs) and cyclic ethers via a radical pathway to afford substituted diarylmethanes and triarylmethanes or to effect the α-alkylation of the cyclic ethers has been developed.