Photoredox-Mediated Synthesis of Functionalized Sulfoxides from Terminal Alkynes
作者:Jaswant Kumar、Ajaz Ahmad、Masood Ahmad Rizvi、Majid Ahmed Ganie、Chhavi Khajuria、Bhahwal Ali Shah
DOI:10.1021/acs.orglett.0c02055
日期:2020.7.17
A photoredox-mediated protocol for the synthesis of α-alkoxy-β-ketosulfoxides and α,β-dialkoxysulfoxides using alkynes, thiol, and alcohols is reported. This work presents a rare single-step synthesis of α-substituted sulfoxides, involving tandem introduction of a thiol and alcohol as a key enabling advancement. Furthermore, the method can be easily employed to access vinyl sulfoxides and β-ketosulfoxides
Synthesis of 2-Acetylenic Carboxylic Acids, 1-Sulfinyl and 1-Sulfonyl-2-ketones from 2-Acetylenic Phenyl Sulfides
作者:Carlos C. Fortes、Clevia F.D. Garrote
DOI:10.1080/00397919708005006
日期:1997.9
2-acetylenic phenyl sulfides into 1-methoxy-2-acetylenic phenyl sulfides. Oxidation with chromic acid gave 2-acetylenic carboxylic acids. Oxidation of 2-acetylenic phenyl sulfides with Oxone® and hydrogen peroxide in aceticacid gave the corresponding sulfoxides and sulfones respectively. Diethylamine addition to the triple bond produced enamines which were hydrolyzed with aqueous hydrochloric acid to the corresponding