Iron or boron-catalyzed C–H arylthiation of substituted phenols at room temperature
作者:Hua Tian、Changjin Zhu、Haijun Yang、Hua Fu
DOI:10.1039/c4cc03600j
日期:——
A simple, efficient and environmentally friendly method for iron or boron-catalyzed C–H arylthiation of substituted phenols at room temperature has been developed, and the corresponding diaryl sulfides were prepared in good to excellent yields.
Direct sulfenylation and selenylation of phenols using a stoichiometric amount of FeCl3 under an oxygen atmosphere has been developed. The chalcogenated phenols were shown to be suitable for preparing S- and Se-containing compounds using the reaction of the remaining hydroxy group.
Regioselective thiolation of electron rich arenes and heterocycles in recyclable catalytic media
作者:Dushyant Singh Raghuvanshi、Narsingh Verma
DOI:10.1039/c7ra02350b
日期:——
A convenient and novel approach has been developed for the synthesis of unsymmetrical diaryl sulfides by the reaction of sulfonyl hydrazides with phenols using a [Bmim][Br] ionicliquid through the formation of C–S bonds. The reaction has further been extended to indole, β-naphthol and aromatic amine moieties. This protocol offers a new, versatile and greener approach for thiolation of natural phenols