Disproportionate Coupling Reaction of Sodium Sulfinates Mediated by BF<sub>3</sub>·OEt<sub>2</sub>: An Approach to Symmetrical/Unsymmetrical Thiosulfonates
作者:Liang Cao、Shi-He Luo、Kai Jiang、Zhi-Feng Hao、Bo-Wen Wang、Chu-Ming Pang、Zhao-Yang Wang
DOI:10.1021/acs.orglett.8b01808
日期:2018.8.17
The BF3·OEt2-mediated disproportionate coupling reaction of sodium sulfinates was found for the first time. In this reaction, various S–S(O)2 bonds can be formed, efficiently giving thiosulfonates in moderate to excellent yields. As a convenient protocol for the synthesis of symmetrical and unsymmetrical thiosulfonates, its reaction mechanism involves the formation of a thiyl radical and sulfonyl radical
Synthesis of<i>S</i>-Aryl Arenethiosulfonates from<i>N</i>,<i>N</i>-Di(arenesulfonyl)hydrazines: Reduction of Sulfonyl Chlorides with an Organic Reagent
N,N-Di(arenesulfonyl)-N′,N′-dimethyl-hydrazines, readily prepared from arenesulfonylchlorides and N,N-dimethylhydrazine, were heated at 120°C in chlorobenzene to give S-aryl arenethiosulfonates, ArSSO2Ar, in good yields.
Synthesis of Symmetrical Thiosulfonates
<i>via</i>
Cu(OTf)
<sub>2</sub>
‐Catalyzed Reductive Homocoupling of Arenesulfonyl Chlorides
作者:Lixia Liu、Bo Luo、Chengming Wang
DOI:10.1002/ejoc.202101101
日期:2021.11.22
Various symmetrical aryl thiosulfonates are efficiently synthesized viareductive coupling of aryl sulfonyl chlorides in the presence of copper catalyst and organic amine reductant. This simple and convenient protocol also shows good functional group tolerance and features a broad substrate scope.
Perfluoroalkylation of Thiosulfonates: Synthesis of Perfluoroalkyl Sulfides
作者:Ziwei Luo、Xinkan Yang、Gavin Chit Tsui
DOI:10.1021/acs.orglett.0c02235
日期:2020.8.7
A practical synthesis of perfluoroalkyl sulfides is described. The method employs stable and readily accessible thiosulfonates as new electrophiles with commercial nucleophilic perfluoroalkylating reagents. The mild reaction conditions allow access to a wide variety of both aryl- and alkyl-substituted perfluoroalkyl sulfides amenable to pharmaceutical development. Furthermore, the reaction operation
Metal-Free Radical Annulation of Oxygen-Containing 1,7-Enynes: Configuration-Selective Synthesis of (<i>E</i>)-3-((Arylsulfonyl)methyl)-4-Substituted Arylidenechromene Derivatives
作者:Kaimin Mao、Mouwang Bian、Lei Dai、Jinghang Zhang、Qiuyu Yu、Chang Wang、Liangce Rong
DOI:10.1021/acs.orglett.0c03946
日期:2021.1.1
A novel strategy for the synthesis of (E)-3-((arylsulfonyl)methyl)-4-substituted benzylidenechromene derivatives via a metal-free radical annulation reaction of oxygen-containing 1,7-enynes with thiosulfonates has been developed. The reaction shows broad substrate scope, wide functional group tolerance, and moderate to excellent yields. Moreover, thiosulfonates were well driven to achieve the bifunctionalization