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  

Center for IT & Basic Sciences M. P. Bhoj Open University, Bhopal, India.

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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Copy the following to cite this article: Suryawanshi N. S, Jain P. Bronsted Acidic Ionic Liquid as an Efficient and Reusable Catalyst for One-Pot Synthesis of 1-Amidoalkyl 2-Naphthols Under Solvent-free Conditions. Orient J Chem 2010;26(4).

Copy the following to cite this URL: Suryawanshi N. S, Jain P. Bronsted Acidic Ionic Liquid as an Efficient and Reusable Catalyst for One-Pot Synthesis of 1-Amidoalkyl 2-Naphthols Under Solvent-free Conditions. Orient J Chem 2010;26(4). Available from: http://www.orientjchem.org/?p=24465