Ag/K2S2O8‐Mediated Direct Thiolation and Selenylation of Carbazoles

Abstract The first direct and selective 3,6‐di‐thiolation and 3,6‐di‐selenylation of carbazoles using diaryl disulfides/diselenide as the sulfur/selenium source were demonstrated. This simple, general, and efficient method could deliver a wide range of 3,6‐di‐sulfenyl‐carbazoles and 3,6‐di‐selenyl‐carbazoles from readily available starting materials with high regioselectivity in an easily‐operated one‐step reaction via a Ag/K 2 S 2 O 8 ‐mediated protocol.