Synthesis 2008(9): 1379-1388  
DOI: 10.1055/s-2008-1072564
PAPER
© Georg Thieme Verlag Stuttgart · New York

o-Benzenedisulfonimide as Reusable Brønsted Acid Catalyst for Acid-Catalyzed Organic Reactions

Margherita Barbero*, Silvano Cadamuro, Stefano Dughera, Paolo Venturello
Dipartimento di Chimica Generale e Chimica Organica, Università, Via P. Giuria 7, 10125 Torino, Italy
Fax: +39(11)6707642; e-Mail: margherita.barbero@unito.it;
Further Information

Publication History

Received 10 January 2008
Publication Date:
27 March 2008 (online)

Abstract

Acid-catalyzed organic reactions, such as etherification, esterification, acetal synthesis, cleavage, and interconversion, and pinacol rearrangement were carried out in the presence of catalytic amounts of o-benzenedisulfonimide as Brønsted acid catalyst; the conditions were mild and selective. The catalyst was easily recovered and purified, ready to be used in further reactions, with economic and ecological advantages.