A review on the latest progress of C‐S cross‐coupling in diaryl sulfide synthesis: Update from 2012 to 2021

Diaryl sulfides are a highly valuable class of sulfur‐containing compounds presented in numerous drugs with a broad range of therapeutic activities and are also employed as precursors to other higher oxidation state sulfur‐containing compounds with important bioactivities. Thus, the development of efficient approaches for C−S bond formation is essential in synthetic and medicinal chemistry. Many efforts have been made in constructing C−S bonds via various protocols. This review highlights the current strategies emphasizing metal‐catalyzed reactions (MRC), metal‐free approaches, photocatalysis reaction s , and MCR's from 2012 onwards.