Sodium iodide-mediated synthesis of vinyl sulfides and vinyl sulfones with solvent-controlled chemical selectivity
作者:Congrong Liu、Jin Xu、Gongde Wu
DOI:10.1039/d1ra07086j
日期:——
Vinyl sulfides and vinyl sulfones are ubiquitous structures in organic chemistry because of their presence in natural and biologically active compounds and are very frequently encountered structural motifs in organic synthesis. Herein we report an efficient synthesis of vinyl sulfides and vinyl sulfones via transition metal-free sodium iodide-mediated sulfenylation of alcohols and sulfinic acids with
Synthesis of Multisubstituted Furans via a Catalyst- and Additive-Free Tandem Reaction of Enynones with Sulfinic Acids in Water
作者:Yue Ren、Ling-Guo Meng、Tao Peng、Lei Wang
DOI:10.1021/acs.orglett.8b01714
日期:2018.8.3
A facile and efficient tandemreaction of enynones with arylsulfinic acids was developed. A variety of multisubstituted furans were obtained in satisfactory yields via an O2-oxidative single-electron-transfer process without any catalyst and additive in water.
Direct synthesis of sulfonated dihydroisoquinolinones from N-allylbenzamide and arylsulfinic acids via TBHP-promoted cascade radical addition and cyclization
作者:Dong Xia、Yang Li、Tao Miao、Pinhua Li、Lei Wang
DOI:10.1039/c6cc04983d
日期:——
A novel synthesis of sulfonated dihydroisoquinolinones via cascaderadicaladdition and cyclization was developed in presence of tert-butyl hydroperoxide (TBHP). The reactions generated the desired sulfonated dihydroisoquinolinones in good yields...
Metal-Free Synthesis of 2<i>H</i>-Indazole Skeletons by Photochemistry or Thermochemistry
作者:Gan Zhang、Yicheng Zhang、Pinhua Li、Chao Zhou、Min Wang、Lei Wang
DOI:10.1021/acs.joc.3c01091
日期:2023.9.1
A simple and tuned synthesis of a 2H-indazole skeleton under metal-free conditions was developed. Under visible-light irradiation at room temperature, 2-((aryl/alkyl/H)ethynyl))aryltriazenes reacted with arylsulfinic acids to afford 3-functionalized 2H-indazoles without extra photocatalyst via an electron donor–acceptor complex. In the presence of arylsulfinic acid, 2-(ethynyl)aryltriazenes underwent
开发了一种在无金属条件下简单且调谐的 2 H-吲唑骨架合成方法。在室温可见光照射下,2-((芳基/烷基/H)乙炔基))芳基三氮烯与芳基亚磺酸反应,通过电子供体-受体复合物产生3-官能化2H-吲唑,无需额外的光催化剂。在芳基亚磺酸存在下,2-(乙炔基)芳基三氮烯在空气中于 50 °C 下发生分子内氧化/环化,生成 2 H-吲唑-3-甲醛。