An efficient procedure was developed for the synthesis of aryl sulfides in good to excellent yields using TBAI–HBr system promoted direct sulfenylation of various compounds, such as phenols, pyrazolones, indoles and related heteroarenes.

No abstract

No abstract

A simple, effective, and direct alkylation and acylation of indazoles using aldehydes under metal-free conditions has been developed. This regioselective alkylation/acylation protocol can proceed under mild conditions, tolerate a wide range of functional groups, and deliver multifunctional 2H-indazole derivatives with high efficiency. Mechanism studies indicated that a radical process was involved.

An unprecedented method for the synthesis of β-alkoxy sulfides via a NaI/HBr-mediated three-component oxysulfenylation reaction of alkenes with arylsulfinic acids and alcohols is reported. Furthermore, I2-promoted oxysulfenylation of alkenes using sodium arylsulfinates instead of arylsulfinic acids to synthesise various β-alkoxy sulfides is also described.