A tetra-n-butylammonium iodide mediated reaction of indoles with Bunte salts: efficient 3-sulfenylation of indoles under metal-free and oxidant-free conditions
作者:Jian Li、Zhong-Jian Cai、Shun-Yi Wang、Shun-Jun Ji
DOI:10.1039/c6ob01528j
日期:——
A highly efficient tetra-n-butylammonium iodide (TBAI) triggered procedure for 3-sulfenylation of indoles with Buntesalts is demonstrated. This protocol provides a simple strategy to prepare 3-alkylthioindoles and 3-arylthioindoles from the corresponding indoles under metal-free and oxidant-free conditions.
Synthesis of 3-Sulfenylindoles from Indoles and Various Sulfenylation Agents through Aerobic Oxidative C–S Bond Coupling
作者:Meichao Li、Zhenlu Shen、Chaorong Xu、Shanli Yi、Xinquan Hu、Nan Sun、Liqun Jin、Baoxiang Hu
DOI:10.1055/s-0037-1610532
日期:2018.9
A novel aerobic catalytic oxidation system for the sulfenylation of indoles with a variety of sulfenylation agents through oxidative C–S bond coupling has been successfully developed. The reactions were performed with potassium iodide as the catalyst, sodium nitrite as the co-catalyst, and molecular oxygen as the terminal oxidant in the presence of acetic acid. Under the optimal reaction conditions