An iodine-catalyzed regioselective sulfenylation of indoles in the presence of DMSO has been presented. Various indoles can react with aryl thiols or alkyl thiols to afford their corresponding 3-sulfenylindoles in good to excellent yields. The notable features of this protocol include easy operation, metal-free reaction conditions, and excellent functional group tolerance.
Iodine-Catalyzed Regioselective Sulfenylation of Indoles with Sodium Sulfinates
作者:Fuhong Xiao、Hao Xie、Saiwen Liu、Guo-Jun Deng
DOI:10.1002/adsc.201300773
日期:2014.2.10
AbstractAn iodine‐catalyzed sulfenylation of free indoles with sodium sulfinates is described. The reaction selectively afforded 3‐arylthioindoles in good to high yields in anisole under metal‐free conditions. Functional groups such as halogens were well tolerated under the optimized reaction conditions.magnified image