Three-Component Condensation of 4-Imino-1-Phenylimidazolidin-2-One with Aldehydes and Meldrum's Acid: Synthesis of Imidazo[4,5-b]Pyridine-2,5(4H,6H)-Diones and 5-Substituted 1-Phenylhydantoins
作者:Constantine S. Krylov、Andrey N. Komogortsev、Boris V. Lichitsky、Artem N. Fakhrutdinov、Arkady А. Dudinov、Mikhail M. Krayushkin
DOI:10.1007/s10593-019-02548-9
日期:2019.9
synthesis of previously unknown imidazo[4,5-b]pyridine-2,5(4H,6H)-diones has been developed, based on a three-component condensation of 4-imino-1-phenylimidazolidin-2-one with aldehydes and Meldrum's acid. The possibility of accessing 5-substituted 1-phenylhydantoins based on the acid hydrolysis of imidazo[4,5-b]pyridine-2,5(4H,6H)-diones was shown.
基于4-亚氨基-1-苯基咪唑啉酮的三组分缩合,已开发了一种方便的合成先前未知的咪唑并[4,5 - b ]吡啶-2,5(4 H,6 H)-二酮的方法-2-一带有醛和麦德鲁姆酸。显示了基于咪唑并[4,5 - b ]吡啶-2,5(4 H,6 H)-二酮的酸水解获得5-取代的1-苯基乙内酰脲的可能性。