Synthesis 2008(3): 474-478  
DOI: 10.1055/s-2008-1032027
PAPER
© Georg Thieme Verlag Stuttgart · New York

Palladium-Catalyzed Cross-Coupling Alkylation of Arenediazonium o-Benzenedisulfonimides

Margherita Barbero, Silvano Cadamuro, Stefano Dughera*
Dipartimento di Chimica Generale ed Organica Applicata, Università di Torino, Corso Massimo d’Azeglio 48, 10125 Torino, Italy
Fax: +39(011)6707642; e-Mail: stefano.dughera@unito.it;
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Publikationsverlauf

Received 24 October 2007
Publikationsdatum:
10. Januar 2008 (online)

Abstract

Arenediazonium o-benzenedisulfonimides were reacted with tetramethyltin, tetrabutyltin or trialkylboranes. The reactions, carried out in the presence of palladium(II) derivatives as precatalysts, gave the methylation and alkylation products with good overall conversions. The o-benzenedisulfonimide was recovered in high yield from all the reactions and could be recycled for the preparation of other salts.