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TEMPO-Catalyzed Aerobic Oxidation of Alcohols to Aldehydes and Ketones in Ionic Liquid [bmin][PF6]

Imtiaz A. Ansari and Rene Gree*

*ENSCR, Laboratoire de Synthèses et Activations de Biomolecules, CNRS UMR 6052, Avenue du Général Leclerc, 35700 Rennes, France, Email: rene.greeensc-rennes.fr

I. A. Ansari, R. Gree, Org. Lett., 2002, 4, 1507-1509.

DOI: 10.1021/ol025721c


Abstract

A simple and mild TEMPO-CuCl catalyzed aerobic oxidation of primary and secondary alcohols in ionic liquid [bmim][PF6]  gave the corresponding aldehydes and ketones with no trace of overoxidation to carboxylic acids. The product can be isolated by a simple extraction with organic solvent, and the ionic liquid can be recycled or reused.

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Key Words

ionic liquids, oxidation, aldehydes, ketones, TEMPO, CuCl


ID: J54-Y2002-570