Heterocyclic compounds from urea derivatives. Part XVI. Interaction of carbonohydrazide and carbodi-imides
作者:Frederick Kurzer、Michael Wilkinson
DOI:10.1039/j39700000019
日期:——
Equimolar quantities of carbonohydrazide and carbodi-imides react in dimethyl sulphoxide or dimethylformamide to yield 4-substituted 3-aryl(or alkyl)amino-1,2,4-triazolin-5-ones. The use of an excess of carbodi-imide produces, in addition, 3,5-bisaryl(or alkyl)amino-4-aryl(or alkyl)-1,2,4-triazoles.
等摩尔量的碳酰肼和碳二亚胺在二甲基亚砜或二甲基甲酰胺中反应,生成4-取代的3-芳基(或烷基)氨基-1,2,4-三唑啉-5-酮。另外,使用过量的碳二亚胺会产生3,5-双芳基(或烷基)氨基-4-芳基(或烷基)-1,2,4-三唑。