Catalytic Synthesis of 3-Thioindoles Using Bunte Salts as Sulfur Sources under Metal-Free Conditions
作者:Hong Qi、Tongxin Zhang、Kefeng Wan、Meiming Luo
DOI:10.1021/acs.joc.6b00636
日期:2016.5.20
An efficient catalytic method for the synthesis of 3-thioindoles has been successfully developed, which uses odorless, stable, readily available crystalline Bunte salts as the sulfenylating agents, iodine as nonmetallic catalyst, and DMSO as both the oxidant and solvent. This method is practical and environmentally benign in terms of sulfur sources, catalyst, and solvent. The catalytic reaction is
已成功开发出一种有效的催化方法,用于合成3-硫代吲哚,该方法使用无味,稳定,易得的结晶邦特盐作为亚磺化剂,使用碘作为非金属催化剂,并使用DMSO作为氧化剂和溶剂。就硫源,催化剂和溶剂而言,该方法是实用且对环境无害的。催化反应在吲哚的C3位置处具有选择性,并且可与多种底物相容,从而以良好或优异的收率得到所需的产物。