Synlett

Palladated Kaiser oxime resin as precatalyst for the Heck reaction in organic and aqueous media

E Alacid, C Najera

Index: Alacid, Emilio; Najera, Carmen Synlett, 2006 , # 18 p. 2959 - 2964

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Citation Number: 20

Abstract

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 10 5. 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).