Abstract
An efficient four-component reaction to synthesize pyrrolo [2,1-a] isoquinolines from
malononitrile, aromatic aldehydes, isoquinoline, and cyclohexyl isocyanide under solvent-free
conditions is described. In a convenient, simple, and efficient one-pot procedure, the domino
Knoevenagel-nucleophilic cycloaddition reaction affords excellent yields of products in less
than 1 h.
Keywords:
Pyrrolo [2, 1-a]isoquinoline, four-component reactions, isoquinoline, isocyanide, aromatic aldehydes, solvent-free synthesis.
Graphical Abstract
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