Pd(II)‐Catalyzed Benzimidazole‐Assisted Annulation of 3‐(1H‐Benzo[d]imidazol‐2‐yl)‐2H‐chromen‐2‐one: Access to Imidazo[1,2‐a]chromeno[3,4‐c]pyridine
作者:Dinesh Singla、Vijay Luxami、Kamaldeep Paul
DOI:10.1002/ejoc.202300531
日期:2023.9.6
Here reports an synthetic method to access polycyclic aromatic hydrocarbons of imidazo[1,2-a]chromeno[3,4-c]pyridine, by palladium-catalyzed oxidative annulation of 3-(1H-benzo[d]imidazol-2-yl)-2H-chromen-2-one with alkenes using benzimidazole as directing group. In addition, their photophysical properties have been well elucidated with improved quantum yields.
这里报道了一种通过钯催化的3-(1 H-苯并[ d ]咪唑-2-)氧化成环反应获得咪唑并[1,2- a ]色并[3,4- c ]吡啶多环芳烃的合成方法yl)-2 H -chromen-2-one 与烯烃,使用苯并咪唑作为导向基团。此外,随着量子产率的提高,它们的光物理性质也得到了很好的阐明。