Tetrahedron letters

Al (OTf) 3 as a highly efficient catalyst for the rapid acetylation of alcohols, phenols and thiophenols under solvent-free conditions

…, MNA Khan, KS Reddy, YVV Srikanth, T Krishnaji

Index: Kamal, Ahmed; Khan, M. Naseer A.; Reddy, K. Srinivasa; Srikanth; Krishnaji Tetrahedron Letters, 2007 , vol. 48, # 22 p. 3813 - 3818

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Citation Number: 71

Abstract

Aluminium triflate (0.01–0.1 mol%) was found to be an efficient catalyst for the acylation of alcohols, phenols, thiols and sugars with acetic anhydride in high yields under solvent-free conditions in a short reaction time at room temperature. Racemization of optically active alcohols and epimerization of sugars were not observed. The acylation efficacy of various acyl donors was also investigated.