Investigation of the reactivity of (1<i>H</i>-benzo[<i>d</i>]imidazol-2-yl)acetonitrile and (benzo[<i>d</i>]thiazol-2-yl)acetonitrile as precursors for novel bis(benzo[4,5]imidazo[1,2-<i>a</i>]pyridines) and bis(benzo[4,5]thiazolo[3,2-<i>a</i>]pyridines)
作者:Ahmed F. Darweesh、Nesma A. Abd El-Fatah、Ismail A. Abdelhamid、Ahmed H. M. Elwahy、Mostafa E. Salem
DOI:10.1080/00397911.2020.1784436
日期:2020.8.17
Abstract A synthesis of novel bis(benzo[4,5]imidazo[1,2-a]pyridines) via the reaction of the appropriate bis(aldehyde) with 2-(1H-benzo[d]imidazol-2-yl)acetonitrile and malononitrile in ethanol at reflux in the presence of piperidine was reported. On the other hand, attempted synthesis of bis(benzo[4,5]thiazolo[3,2-a]pyridines) by a three-component reaction of the appropriate bis-aldehyde with malononitrile