3,4-Dichloro-1,2,5-thiadiazole: a commercially available electrophilic sulfur transfer agent and safe resource of ethanedinitrile
作者:Hayedeh Gorjian、Nader Ghaffari Khaligh
DOI:10.1080/17415993.2021.1991928
日期:2022.3.4
3,4-Dichloro-1,2,5-thiadiazole is introduced as a safe and efficient sulfur transferreagent. By applying this commercially available reagent, the symmetrical trisulfides and ethanedinitrile were simultaneously obtained by reacting various thiols with this reagent at room temperature. This reagent is non-toxic, inexpensive, and commercially available. In addition, no higher-order polysulfides were
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.
Substituted organosulfur compounds and methods of using thereof
申请人:Xu Xiao
公开号:US20050261321A1
公开(公告)日:2005-11-24
The present invention provides substituted di-, tri-, tetra- and penta-sulfide compounds and compositions, and methods of using the same for the treatment and/or prevention of a cell proliferative disorder. The present invention also provides methods for preparing trisulfide compounds and compositions.
Electrochemical Synthesis of Organic Polysulfides from Disulfides by Sulfur Insertion from S
<sub>8</sub>
and an Unexpected Solvent Effect on the Product Distribution
作者:Jan Fährmann、Gerhard Hilt
DOI:10.1002/chem.202101023
日期:2021.8.2
An electrochemical synthesis of organic polysulfides through sulfur insertion from elemental sulfur to disulfides or thiols is introduced. The highly economic, low-sensitive and low-priced reaction gives a mixture of polysulfides, whose distribution can be influenced by the addition of different amounts of carbon disulfide as co-solvent. To describe the variable distribution function of the polysulfides
介绍了通过从元素硫插入硫到二硫化物或硫醇来电化学合成有机多硫化物。这种高度经济、低敏感性和低成本的反应得到多硫化物的混合物,其分布可以通过添加不同量的二硫化碳作为共溶剂来影响。为了描述多硫化物的可变分布函数,引入了一个新参数“多硫化物中吸光度平均硫含量”(SAP),并根据高分子化学中使用的“数均摩尔质量”进行定义。使用不同体积分数的二硫化碳合成各种有机多硫化物,并通过定量13 C NMR 测定每种多硫化物的产率。此外,通过使用两种对称的二硫化物或二硫化物和硫醇作为起始原料,可以获得对称和不对称多硫化物的混合物。
Rhodium-catalyzed sulfur atom exchange reaction between organic polysulfides and sulfur
作者:Mieko Arisawa、Ken Tanaka、Masahiko Yamaguchi
DOI:10.1016/j.tetlet.2005.05.024
日期:2005.7
RhH(PPh3)4 and cis-1,2-bis(diphenylphosphino)ethylene (dppv) catalyze the exchange of sulfur atoms betweensulfur and organic polysulfides. The exchange of dialkyl trisulfides with sulfur proceeds at a high efficiency within 5 min at room temperature yielding a mixture of organic polysulfides.