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Synlett 2006(18): 2959-2964
DOI: 10.1055/s-2006-951521
DOI: 10.1055/s-2006-951521
LETTER
© Georg Thieme Verlag Stuttgart · New York
Palladated Kaiser Oxime Resin as Precatalyst for the Heck Reaction in Organic and Aqueous Media
Further Information
Received
23 March 2006
Publication Date:
25 October 2006 (online)
Publication History
Publication Date:
25 October 2006 (online)

Abstract
A particular Kaiser oxime resin derived palladacycle is an efficient precatalyst for the Heck reaction with aryl iodides and bromides in DMF and in aqueous solvents under relatively moderate temperatures (110 °C and 120 °C) and high TON up to 105. Poisoning studies indicate that this polymer acts as a precatalyst. The polymer has been reused after recycling with low to moderate leaching of Pd(0).
Key words
Heck reaction - palladacycles - polymers - alkenes - arylation
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References
These reaction conditions were considered the most appropriate when complex 2 was used as precatalyst. See ref. 3j-m.