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
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。