An efficient synthesis of 3,4-dihydropyrimidin-2(1H)-one and 5,6-diphenylpyrimidine derivatives under solvent-free and base conditions
作者:Jing Xu、Ganlu Hao、Xu Gao、Hui Xu、Liangce Rong
DOI:10.1007/s11164-016-2842-y
日期:2017.7
An efficient and convenient Biginelli-like reaction one-pot synthesis of a series of 4-aryl-5,6-diphenyl-3,4-dihydropyrimidin-2(1H)-one and 4-aryl-5,6-diphenylpyrimidine derivatives under solvent-free conditions from the reaction of aromatic aldehydes, 1,2-diphenylethanone, urea, guanidine carbonate or acetamidine hydrochloride has been reported. This methodology has the advantages of short reaction
一系列4-芳基-5,6-二苯基-3,4-二氢嘧啶-2(1 H)-一和4-芳基-5,6-二苯基嘧啶衍生物的高效便捷的Biginelli样反应一锅合成据报道,在无溶剂条件下,由芳族醛,1,2-二苯乙酮,尿素,碳酸胍或乙am盐酸盐反应制得。该方法的优点是反应时间短,反应条件温和,后处理容易和环境友好。此外,在该方法中首次报道了4-芳基-5,6-二苯基嘧啶衍生物。通过X射线衍射进一步确定标题化合物的结构。更重要的是,不同于一般的Biginelli反应,该报道的方法是在碱性条件下进行的。