InCl₃-Assisted Synthesis of Pyrano[2,3-<i>a</i>]carbazoles via Multicomponent Reaction

<div><p></p><p>A facile, efficient, and environmentally friendly protocol for the synthesis of pyrano[2,3-<i>a</i>]carbazoles has been developed by one-pot multicomponent reaction of benzaldehyde/isatin with malononitrile and 1-hydroxycarbazoles in the presence of InCl₃ as catalyst.</p>