been developed for dehydrogenative C−H/S−H cross‐coupling. This method enabled C−S bond formation under catalyst‐ and oxidant‐free conditions. Under undivided electrolysis conditions, various aryl/heteroaryl thiols and electron‐rich arenes afforded the C−S bond‐formation products in 24–99 % yield. A preliminary mechanistic study indicated that the generation of aryl radicalcation intermediates is key
Photocatalytic direct C–S bond formation: facile access to 3-sulfenylindoles via metal-free C-3 sulfenylation of indoles with thiophenols
作者:Wei Guo、Wen Tan、Mingming Zhao、Kailiang Tao、Lv-Yin Zheng、Yongquan Wu、Deliang Chen、Xiao-Lin Fan
DOI:10.1039/c7ra08086g
日期:——
An efficient and convenient photocatalytic direct C-3 sulfenylation of indoles with thiophenols has been developed for the construction of 3-sulfenylations. This protocol employs thiophenols as the sulfenylating agents, inexpensive rose bengal as the photocatalyst, and shows mild conditions, readily available starting materials, high atom and step atom economy, and environmental advantages. The representative
Iodine-catalyzed Direct Thiolation of Indoles with Thiols Leading to 3-Thioindoles Using Air as the Oxidant
作者:Xiaoxia Liu、Huanhuan Cui、Daoshan Yang、Shicui Dai、Guoqin Zhang、Wei Wei、Hua Wang
DOI:10.1007/s10562-016-1798-2
日期:2016.9
A simple and convenient method has been developed for the construction of 3-thioindoles via molecular iodine-catalyzed direct thiolation of indoles with thiols. The present protocol, which employs thiols as the thiolating agents, inexpensive molecular iodine as the catalyst, and environmentally benign air as the oxidant, allows the regioselective generation of 3-thioindoles in good to excellent yields
Visible light-induced 3-sulfenylation of N-methylindoles with arylsulfonyl chlorides
作者:Min Chen、Zhi-Tang Huang、Qi-Yu Zheng
DOI:10.1039/c2cc36866h
日期:——
The synthesis of 1-methyl-3-(arylthio)-1H-indoles has been achieved by the photoredox reaction of N-methylindoles with readily available arylsulfonyl chlorides in moderate yields.