A Bimetallic Aluminum(salen) Complex for the Synthesis of 1,3-Oxathiolane-2-thiones and 1,3-Dithiolane-2-thiones
作者:William Clegg、Ross W. Harrington、Michael North、Pedro Villuendas
DOI:10.1021/jo101121h
日期:2010.9.17
3-oxathiolane-2-thiones, while at 90 °C, 1,3-dithiolane-2-thiones are the main product. The structure and stereochemistry of three of the 1,3-dithiolane-2-thiones is unambiguously determined by X-ray crystallographic analysis, and this is used to correct errors in the literature concerning the synthesis of cyclic di- and trithiocarbonates. The kinetics of 1,3-oxathiolane-2-thione synthesis are determined, and the resulting
Cyclic dithiocarbonates were prepared in good yield and excellent selectivity through an environmental acceptable methodology involving the reaction of substituted epoxides with carbon disulfide under hydrotalcite catalysis. The catalyst can be recovered by filtration and reused several times.
Aluminium(salen) and Tetrabutylammonium Bromide Catalysed Synthesis of Cyclic Di- and Trithiocarbonates from Epoxides and Carbon Disulfide
作者:Michael North、Pedro Villuendas
DOI:10.1055/s-0029-1219160
日期:2010.3
The combination of a bimetallicaluminium(salen) complex and tetrabutylammonium bromide was found to catalyse the synthesis of cyclic di- and trithiocarbonates from epoxides and carbon disulfide. Reactions carried out at 50 °C produced 1,3-oxathiolane-2-thiones, whilst at 90 °C, 1,3-dithiolane-2-thiones were formed.
发现双金属铝(salen)配合物和四丁基溴化铵的组合可催化由环氧化物和二硫化碳合成环状二硫代碳酸酯和三硫代碳酸酯。在 50 °C 下进行的反应产生 1,3-oxathiolane-2-thiones,而在 90 °C 下,形成 1,3-dithiolane-2-thiones。
Cyclic amidine hydroiodide for the synthesis of cyclic carbonates and cyclic dithiocarbonates from carbon dioxide or carbon disulfide under mild conditions
作者:Naoto Aoyagi、Yoshio Furusho、Takeshi Endo
DOI:10.1016/j.tet.2019.130781
日期:2019.12
Hydroiodides of amidines can catalyze the reaction of carbon dioxide and epoxides under mild conditions such as ordinary pressure and ambient temperature, and the corresponding five-membered cyclic carbonates were obtained in high yields. The reaction of epoxide with carbon disulfide was also examined under the same conditions. Detailed investigation showed that the catalytic activity was highly affected
A simple and novel eco-friendly process for the synthesis of cyclic dithiocarbonates from epoxides and carbon disulfide in water
作者:Azim Ziyaei Halimehjani、Forogh Ebrahimi、Najmedin Azizi、Mohammad R. Saidi
DOI:10.1002/jhet.75
日期:2009.3
The reaction of oxiranes with carbondisulfide for preparation of cyclic dithiocarbonates was carried out in water under catalytic amount of an organic base such as dimethylaminopyridine or triethylamine. The reaction conditions are simple and give high yields of desired products. J. Heterocyclic Chem., 46, 347 (2009).