作者:Hamid Reza Memarian、Mahnaz Ranjbar
DOI:10.1002/jccs.201190016
日期:2011.8
Efficient synthesis of various 2‐oxo(thioxo)‐1,2,3,4‐tetrahydropyrimidines containing acetyl, carboethoxy, carbomethoxy and carboxamide groups on 5‐position of the N1‐substituted and N1‐unsubstituted heterocyclic ring was achieved using cobalt hydrogen sulfate Co(HSO4)2 under thermal conditions. Good to high yield, shorter reaction times, easy work up and simple preparation of Co(HSO4)2 are the advantages
使用钴实现了在N 1-取代和N 1-未取代的杂环的5位上含有乙酰基,碳乙氧基,碳甲氧基和羧酰胺基团的各种2-氧代(thioxo)-1、2、3、4-四氢嘧啶的高效合成在热条件下产生硫酸氢Co(HSO 4)2。该合成方法的优点是产率高至高,反应时间短,易于后处理和制备Co(HSO 4)2简便。