A convenient one-pot synthesis of trisubstituted 1,3,5-triazines through intermediary amidinothioureas
                                
                                    
                                        作者:Jitendra C. Kaila、Arshi B. Baraiya、Amit N. Pandya、Hitesh B. Jalani、V. Sudarsanam、Kamala K. Vasu                                    
                                    
                                        DOI:10.1016/j.tetlet.2010.01.034
                                    
                                    
                                        日期:2010.3
                                    
                                    A thiophile-promoted one-pot synthesis of trisubstituted 1,3,5-triazines starting from isothiocyanates, N,N-diethylamidines, and carbamidines has been studied. The reaction proceeds through the formation of intermediary amidinothioureas, which react with carbamidines in the presence of mercury(II) chloride to generate the desired 1,3,5-triazines in good to moderate yields (40–70%).
                                    已研究了由异
硫氰酸酯,N,N-
二乙基am和
尿素起始的由
噻吩促进的一锅合成三取代
1,3,5-三嗪。该反应通过形成中间体a基
硫脲而进行,该中间体在
氯化
汞(II)的存在下与
氨基甲酰胺反应生成所需的
1,3,5-三嗪,并具有良好至中等的收率(40-70%)。