Abstract
Bronsted Acidic Ionic Liquid as an Efficient and Reusable Catalyst for One-Pot Synthesis of 1-Amidoalkyl 2-Naphthols Under Solvent-free Conditions
Niharika S. Suryawanshi and Praveen Jain
Abstract:
A mild and efficient method has been developed for the preparation of amidoalkyl naphthols from condensation of aldehydes with amides or urea and 2-naphthol in the presence of a catalytic amount of Brønsted acidic ionic liquid ([TEA][HSO4]) under thermal solvent-free conditions. High yields, short reaction time, easy work-up and reusability of the catalyst are advantages of this procedure.
Keywords:Bronsted acidic ionic liquid; 2-naphthol; Multicomponent reaction; urea
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