Carbon Disulfide. IV. Reaction with Active Methylene Compounds. The Formation of 3,5-Bismethylene-1,2,4-trithiolanes
作者:Peter Yates、Thomas R. Lynch
DOI:10.1139/v71-240
日期:1971.5.1
The three-sulfur compounds formed on oxidation of the β-keto dithio acids prepared by the reaction of active methylene compounds with base and carbon disulfide have been shown to be 3,5-bis(acylmethylene)-1,2,4-trithiolane derivatives. In several cases, two of the three possible geometrical isomers have been isolated and provisional stereochemical assignments have been made. The i.r. and u.v. spectra
由活性亚甲基化合物与碱和二硫化碳反应制备的 β-酮二硫代酸氧化形成的三硫化合物已被证明是 3,5-双(酰基亚甲基)-1,2,4-三硫杂环戊烷衍生物. 在一些情况下,三种可能的几何异构体中的两种已经被分离出来,并且已经进行了临时的立体化学分配。三硫杂环戊烷的红外和紫外光谱已与相应的 2,4-双(酰基亚甲基)-1,3-二硫杂环庚烷衍生物(desaurins)的红外光谱和紫外光谱进行了比较,并根据硫原子和羰基之间的强共轭相互作用进行了解释组。