Air-stable CpPd (NHC) Cl (NHC= N-heterocyclic carbene) complexes as highly active precatalysts for Kumada–Tamao–Corriu coupling of aryl and heteroaryl …

…, XP Gu, LL Qiu, GP Wu, HB Song, JX Fang

Index: Jin, Zhong; Gu, Xiao-Peng; Qiu, Ling-Ling; Wu, Gui-Ping; Song, Hai-Bing; Fang, Jian-Xin Journal of Organometallic Chemistry, 2011 , vol. 696, # 4 p. 859 - 863

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Abstract

A very straightforward one-pot method has been developed for preparation of air-stable CpPd (NHC) Cl complexes 1a–d. This new class of well-defined NHC–Pd complexes exhibits high catalytic activity in Kumada–Tamao–Corriu cross-coupling reaction involving various aryl and heteroaryl chlorides. Notably, the less sterically encumbered NHC ligand around Pd centre showed higher catalytic activity.

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