Copper-catalyzed domino sequences: a new route to pyrido-fused quinazolinones from 2′-haloacetophenones and 2-aminopyridines
作者:Phuc H. Pham、Son H. Doan、Ngan T. H. Vuong、Vu H. H. Nguyen、Phuong T. M. Ha、Nam T. S. Phan
DOI:10.1039/c8ra03744b
日期:——
A new pathway to access pyrido-fused quinazolinones via a Cu(OAc)2-catalyzed domino sequential transformation between 2′-haloacetophenones and 2-aminopyridines was demonstrated. The solvent and base exhibited a remarkable effect on the transformation, in which the combination of DMSO and NaOAc emerged as the best system. Cu(OAc)2·H2O was more active towards the reaction than numerous other catalysts
证明了通过2'-卤代苯乙酮和 2-氨基吡啶之间的 Cu(OAc) 2催化多米诺连续转化获得吡啶并稠合喹唑啉酮的新途径。溶剂和碱对转化效果显着,其中DMSO和NaOAc的组合是最佳体系。 Cu(OAc) 2 ·H 2 O 比许多其他催化剂对反应更具活性。这种方法是新的,将补充以前合成吡啶并稠合喹唑啉酮的方案。