A visible-light photocatalytic trifluoromethylthiolation of aryl amine through in situ generation of aryldiazonium salts with S-trifluoromethyl 4-methoxylbenzenesulfonothioate was developed.

A novel Pd/C catalysed direct reductive coupling reaction between nitroarenes and sodium arylsulfinates to synthesize N-arylsulfonamides was developed.

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An efficient route to deoxygenation of sulphoxides to sulphides with PCl under mild reaction condition was developed. PCl was used as a reducing agent for the first time to convert sulphoxides to sulphides. The mild conditions, use of cheap and readily available reagent, and broad substrate scope render it a useful strategy for preparing sulphides.