The organocatalytic synthesis of perfluorophenylsulfides <i>via</i> the thiolation of trimethyl(perfluorophenyl)silanes and thiosulfonates
作者:Jinyun Luo、Muze Lin、Leifang Wu、Zhihua Cai、Lin He、Guangfen Du
DOI:10.1039/d1ob01350e
日期:——
The organic superbase t-Bu-P4-catalyzed direct thiolation of trimethyl(perfluorophenyl)silanes and thiosulfonates was developed. Yields of perfluorophenylsulfides of up to 97% under catalysis of 5 mol% t-Bu-P4 were achieved. This method was shown to provide an efficient way to construct the perfluorophenyl–sulfur bond under mild metal-free reaction conditions.
开发了有机超碱t -Bu-P 4催化的三甲基(全氟苯基)硅烷和硫代磺酸盐的直接硫醇化反应。在 5 mol% t -Bu-P 4的催化下,全氟苯硫醚的产率高达 97% 。该方法被证明提供了一种在温和的无金属反应条件下构建全氟苯基-硫键的有效方法。
Visible-light mediated sulfonylation of thiols <i>via</i> insertion of sulfur dioxide
作者:Akshay M. Nair、Shreemoyee Kumar、Indranil Halder、Chandra M. R. Volla
DOI:10.1039/c9ob01040h
日期:——
mediated synthesis of thiosulfonates via a radical–radical coupling of sulfenyl radicals and arylsulfonyl radicals was developed. The reaction of thiols, aryldiazonium tetrafluoroborates and DABSO proceeded at room temperature using 5 mol% eosin Y. The reaction displayed wide functional group tolerance and delivered the unsymmetrical thiosulfonates in good to excellent yields.
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 sulfonyl chlorides and thiosulfonates from H2O2–TiCl4
作者:Kiumars Bahrami、Mohammad M. Khodaei、Donya Khaledian
DOI:10.1016/j.tetlet.2011.11.052
日期:2012.1
A new method is described for the oxidative chlorination of thiols to sulfonylchlorides using titanium tetrachloride in combination with the oxidant hydrogen peroxide. Direct conversion of thiols into their corresponding thiosulfonates is also reported. Good to excellent yields, short reaction times, high efficiencies, cost-effectiveness, and, facile isolation of the desired products make the present