Erbium(III) Chloride: a Very Active Acylation Catalyst

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Contents Vol 60(1)

doi:10.1071/CH06346

Erbium(iii) Chloride: a Very Active Acylation Catalyst

Renato Dalpozzo ^A ^C, Antonio De Nino ^A, Loredana Maiuolo ^B, Manuela Oliverio ^B, Antonio Procopio ^B ^C, Beatrice Russo ^B, Amedeo Tocci ^A

^A Dipartimento di Chimica, Università della Calabria, Ponte Bucci, 87030 Arcavacata di Rende, Italy.
^B Dipartimento Farmaco-Biologico, Università degli Studi della Magna Graecia Complesso Ninì Barbieri, 88063 Roccelletta di Borgia, Italy.
^C Corresponding authors. Email: dalpozzo@unical.it; procopio@unicz.it





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Australian Journal of Chemistry 60(1) 75–79 http://dx.doi.org/10.1071/CH06346
Submitted: 21 September 2006 Accepted: 26 October 2006 Published online: 29 January 2007

Abstract

Erbium(iii) chloride is a powerful catalyst for the acylation of alcohols and phenols. The reaction works well for a large variety of simple and functionalized substrates by using different kinds of acidic anhydrides (Ac₂O, (EtCO)₂O, (PrⁱCO)₂O, (Bu^tCO)₂O, and (CF₃CO)₂), without isomerization of chiral centres. Moreover, the catalyst can be easily recycled and reused without significant loss of activity.