Issue 4, 2005
From the journal:

Green Chemistry

Gadolinium triflate immobilized in imidazolium based ionic liquids: a recyclable catalyst and green solvent for acetylation of alcohols and amines

Ramesh Alleti,a   Woon Su Oh,a   Meher Perambuduru,a   Zahra Afrasiabi,a   Ekkehard Sinna  and  V. Prakash Reddy*a  

* Corresponding authors

a Department of Chemistry, University of Missouri-Rolla, Rolla, MO 65409
E-mail: preddy@umr.edu
Fax: +1 (573)341-6033

Abstract

Gadolinium triflate immobilized in room temperature ionic liquids (RTIL) 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) and 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]) was found to be a recyclable and green catalyst for acetylation of a variety of alcohols, phenols and amines. Acetylation reactions using acetic anhydride (Ac2O) as the reagent proceeded in excellent yields in the presence of catalytic amounts (0.2–0.5 mol%) of Gd(OTf)3 immobilized in RTILs, at ambient temperature. In addition, the catalyst system Gd(OTf)3/[bmim][X] can be recovered and reused efficiently in these transformations.

Graphical abstract: Gadolinium triflate immobilized in imidazolium based ionic liquids: a recyclable catalyst and green solvent for acetylation of alcohols and amines

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Article information

DOI
https://doi.org/10.1039/B416359A
Article type
Paper
Submitted
25 Oct 2004
Accepted
10 Jan 2005
First published
31 Jan 2005

Green Chem., 2005,7, 203-206

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Gadolinium triflate immobilized in imidazolium based ionic liquids: a recyclable catalyst and green solvent for acetylation of alcohols and amines

R. Alleti, W. S. Oh, M. Perambuduru, Z. Afrasiabi, E. Sinn and V. P. Reddy, Green Chem., 2005, 7, 203 DOI: 10.1039/B416359A

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