Synthesis of Sulfonimidamides from Sulfenamides via an Alkoxy‐amino‐λ
<sup>6</sup>
‐sulfanenitrile Intermediate
作者:Edward L. Briggs、Arianna Tota、Marco Colella、Leonardo Degennaro、Renzo Luisi、James A. Bull
DOI:10.1002/anie.201906001
日期:2019.10
few operationally simple methods for their preparation. Here, the synthesis of NH-sulfonimidamides is achieved directly from sulfenamides, themselves readily formed in one step from amines and disulfides. A highly chemoselective and one-pot NH and Otransfer is developed, mediated by PhIO in iPrOH, usingammoniumcarbamate as the NH source, and in the presence of 1 equivalent of acetic acid. A wide
Chemoselective synthesis of diaryl disulfides via a visible light-mediated coupling of arenediazonium tetrafluoroborates and CS<sub>2</sub>
作者:Jing Leng、Shi-Meng Wang、Hua-Li Qin
DOI:10.3762/bjoc.13.91
日期:——
A highly efficient and chemoselective method for the synthesis of diaryl disulfides is developed via a visible light-promoted coupling of readily accessible arenediazonium tetrafluoroborates and CS2. This practical and convenient protocol provides a direct pathway for the assembly of a series of disulfides in an environmentally friendly manner with good to excellent yields.
Visible-light-induced tandem cyclization of 2-alkynylanilines with disulfides: a convenient method for accessing benzothiophenes under transition-metal-free and photocatalyst-free conditions
作者:Xiaoyu Xie、Pinhua Li、Qing Shi、Lei Wang
DOI:10.1039/c7ob01747b
日期:——
An efficient route to benzothiophenes via visible-light induced cyclization of 2-alkynylanilines with disulfides under transition-metal-free and photocatalyst-free conditions was developed.
Kaolinitic Clay Catalyzed Reaction of Sulfur Monochloride with Aromatics: An Efficient and High Yield Synthesis of Symmetrical Disulfides
作者:Renu Vyas、Bhanu Chanda、A. Sudalai
DOI:10.1246/cl.1998.43
日期:1998.1
Kaolinitic clay efficiently catalyses the reaction of sulfurmonochloride with arenes to yield symmetrical 4,4′ arene disulfides in a single step under heterogeneous phase.
高岭土有效地催化一氯化硫与芳烃的反应,在异相下一步生成对称的 4,4' 芳烃二硫化物。
Tunable and Practical Synthesis of Thiosulfonates and Disulfides from Sulfonyl Chlorides in the Presence of Tetrabutylammonium Iodide
practical synthesis of electrophilic sulfenylating reagents, thiosulfonates and disulfides, from inexpensive and easily available sulfonyl chlorides, has been developed. By appropriate choice of solvents, the reaction of sulfonyl chlorides and tetrabutylammonium iodide gave the target products in good to excellent yields, respectively. These transformations probably proceed through a reducing–coupling