Synthesis 2009(7): 1137-1146  
DOI: 10.1055/s-0028-1088003
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Palladium Supported on a Polyionic Resin as an Efficient, Ligand-Free, and Recyclable Catalyst for Heck, Suzuki-Miyaura, and Sonogashira Reactions

Basudeb Basu*a, Sajal Dasa, Pralay Dasa, Bablee Mandala, Dipanjan Banerjeeb, Fredrik Almqvist*b
a Department of Chemistry, University of North Bengal, Darjeeling 734013, India
Fax: +91(353)2699001; e-Mail: basu_nbu@hotmail.com;
b Department of Chemistry, Umeå University, 91087 Umeå, Sweden
e-Mail: Fredrik.Almqvist@chem.umu.se;
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Publikationsverlauf

Received 27 November 2008
Publikationsdatum:
06. März 2009 (online)

Abstract

Polyionic Amberlite resin formate (ARF), derived from commercially available Amberlite resin chloride by simple rinsing with aqueous formic acid, could be soaked with palladium(0) from palladium salts, the formate counteranion being the reducing source. The resulting Amberlite resin formate supported with palladium(0), ARF-Pd, showed excellent catalytic activity in Heck, Suzuki­-Miyaura, and Sonogashira couplings with a range of substrates. The catalyst may be recovered easily and quantitatively without leaching and recycled; it was tested for five runs without any significant loss of activity.