一种2-苯基氨基取代咪唑啉酮的互变异构

In order to study the quantitative structure-activity relationship (QSAR) of 5-(butenolide-3-ethylidene)-2-aminoimidazolinone derivatives, 5-(butenolide-3-ethylidene)-2- othro-methylphenylaminoimidazolinone was choosed, and determined the double bond as E-configuration and 2-amino-1H-imidazolin-4(5H)-one as the core heterocyclic structure in the crystal state. However, E-configuration was kept unchanged, three tautomeric isomers of 2-amino-1H-imidazolin-4(5H)-one, 2-amino-1H-imidazolin-5(4H)-one and 2-imino imidazoline in the core heterocyclic structure were coexisted in a dynamic equilibrium in the solution.