Abstract
AbstractA simple, two‐step process was developed for the easy access of polycyclic pyrrolopyridine derivatives. The first step involves a multicomponent reaction of aryl glyoxal, cyclohexane‐1,3‐dione derivatives and 2‐amino‐1,4‐napthoquinone in AcOH: H2O (1 : 1 v/v) under reflux conditions which led to the formation of 1,5‐diketones in 15 min of reaction time. In the second step, the reaction of ammonium acetate with 1,5‐diketones in AcOH under reflux conditions resulted the formation of polycyclic pyrrolopyridine derivatives. All the products were characterized by FTIR, 1H NMR, 13C NMR and HRMS. The single crystal XRD of one compound was recorded to further confirm the structure of the product. The presence of several bioactive moieties in our product, simple reaction process, metal‐free reaction conditions, easy purification method, and good yields of the products are the notable features of this methodology.
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