Dual visible-light photoredox and palladium(ii) catalysis for dehydrogenative C2-acylation of indoles at room temperature

Abstract

A highly regioselective direct C2-acylation of N-pyrimidine protected indoles with aldehydes is reported at room temperature through the merger of visible light photoredox and palladium(II) catalysis. Late-stage acylation of tryptophan, selective mono-acylation of carbazole and the syntheses of tubulin inhibitors D-64131 and D-68144 are also demonstrated.