An aerobic metal-free, visible-light-induced regioselective thiolation of phenols with thiophenols is reported. The cross-coupling protocol exhibits great functional group tolerance and high regioselectivity. Mechanistic studies reveal that the disulfide radical cation plays a crucial role in the visible-light catalysis of aerobic thiolation. Simply controlling the equivalent ratio of substrates enables
Metal- and solvent-free direct C–H thiolation of aromatic compounds with sulfonyl chlorides
作者:Feng Zhao、Qi Tan、Dahan Wang、Guo-Jun Deng
DOI:10.1039/c9gc03384j
日期:——
A simple, efficient and green method for the direct thiolation of aromaticcompounds using commercially available sulfonyl chlorides as the sulfur source was developed under metal- and solvent-free conditions. The C–S bond was constructed via direct C–H functionalization of diverse aromaticcompounds under an oxygen atmosphere. In this process, various diaryl sulfides were synthesized in moderate to