Synthesis of a new class of heterocycles 1,7-dithia-3,5-diazacycloalkan(e)-4-(thi)ones using Cs- and Rb-containing catalysts
作者:Regina R. Khairullina、Alfiya R. Geniyatova、Tatyana V. Tyumkina、Diana S. Karamzina、Askhat G. Ibragimov、Usein M. Dzhemilev
DOI:10.1016/j.tet.2017.10.068
日期:2017.12
under the action of catalysts based on Rb and Cs salts. A theoretical conformational analysis has been carried out on the example of 1,7-dithia-3,5-diazacycloethane-4-thione, being a representative of new heteromacrocycles with flattened -HN(CO)NH- fragment.
通过(硫代)脲的环硫甲基化反应,已开发出一种有效的合成1,7-二硫代-3,5-二氮杂环烷烃-4-酮和1,7-二硫代-3,5-二氮杂环烷烃-4-硫酮的方法。与双(N,N-二甲基氨基)甲烷和α,ω-链烷二硫醇,如1,2-乙二硫醇,1,3-丙二硫醇,1,4-丁二硫醇,1,5-戊二硫醇和1,6-己二硫醇Rb和Cs盐的催化剂的催化作用 对1,7-二硫代-3,5-二氮杂环乙烷-4-硫酮的实例进行了理论构象分析,该实例是具有-HN(CO)NH-片段扁平化的新杂大环的代表。