Thorpe–Ingold effect in the reaction of vicinal amino primary alcohol hydrogen sulfates and carbon disulfide
作者:Ning Chen、Zhongyan Huang、Chan Zhou、Jiaxi Xu
DOI:10.1016/j.tet.2011.08.023
日期:2011.10
rates and efficiency, as well as the structure of products in some ring-closure reactions. The reaction of vicinal amino primary alcohol hydrogen sulfates and carbon disulfide in the presence of potassium hydroxide produces the desired 4,4-disubstituted thiazolidine-2-thiones, and their isomers 5,5-disubstituted derivatives companying with their oxygen analogues 4,4-disubstituted oxazolidine-2-thiones
索普-英戈尔德效应是影响闭环速率和效率以及某些闭环反应中产物结构的关键因素。邻氨基氨基伯醇硫酸氢盐与二硫化碳在氢氧化钾的存在下反应生成所需的4,4-二取代的噻唑烷-2-硫酮及其异构体5,5-二取代的衍生物及其氧类似物4,4-二取代的恶唑烷-2-硫酮。通过2,2-二取代的氮丙啶-1-碳二硫代酸酯中间体合理化了5,5-二取代的噻唑烷-2-硫酮的形成,该中间体是由于索普-英戈尔德效应而产生的。4,