A facile method for the synthesis of β-chloroalkyl sulfides using dimethyl sulfoxide activated by phenyl dichlorophosphate or phosphorus oxychloride
作者:Hsing-Jang Liu、James M. Nyangulu
DOI:10.1016/s0040-4039(00)80788-1
日期:1988.1
A simple procedure has been developed for the transformation of alkenes to β-chloroalkyl sulfides using dimethylsulfoxide activated with phenyl dichlorophosphate or phosphorus oxychloride.
Metal-Free Chlorothiolation of Alkenes Using HCl and Sulfoxides
作者:Rene Ebule、Gerald B. Hammond、Bo Xu
DOI:10.1002/ejoc.201800973
日期:2018.9.16
We report a novel method for the chlorothiolation of alkenesusing HCl and sulfoxides to achieve the 1,2-difunctionalization of unactivated alkenes. The combination of our new HCl reagent (HCl/DMPU) with sulfoxides forms a unique chlorothiolation system. Both terminal and internal alkenes are suitable substrates. This method works at gram scale and is applicable in further synthetic elaborations.
terminal alkenes give the Markovnikov adducts mainly and the sulfenylchlorination of cyclic alkenes is stereospecific to produce the adducts with trans configuration. Methanesulfenyl chloride is supposed to be the real species for sulfenylchlorination. Graphical Abstract
A Facile Method for the Sulfenyllactonization of Alkenoic Acids Using Dimethyl Sulfoxide Activated by Oxalyl Chloride
作者:Hongyu Tian、Ting Zhang、Yifeng Dai、Siwei Cheng、Yongguo Liu、Shaoxiang Yang、Baoguo Sun
DOI:10.1055/s-0036-1588378
日期:——
Abstract A simple approach has been developed for the sulfenyllactonization of alkenoicacids using dimethyl sulfoxide activated with oxalyl chloride, in which methanesulfenyl chloride is proposed as the intermediate. A simple approach has been developed for the sulfenyllactonization of alkenoicacids using dimethyl sulfoxide activated with oxalyl chloride, in which methanesulfenyl chloride is proposed
Simple and readily available alkyl sulfoxides are shown to be suitable precursors to radicals. Alkyl sulfoxides, N-methoxy pyridinium salts and fluoride anions form electron donor–acceptor (EDA) complexes, which, upon visible-light irradiation, undergo a radical chain process to give various pyridine derivatives.