Volume 34, Number 2, 175-179, DOI: 10.1007/s11243-008-9174-8

Catalysis of the coupling reaction of aryl chlorides with bis(pinacolato)diboron by tricyclohexylphosphine-cyclopalladated ferrocenylimine complexes

Chen Xu, Jun-Fang Gong, Mao-Ping Song and Yang-Jie Wu

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Abstract

Tricyclohexylphosphine-cyclopalladated ferrocenylimine complexes were found to be very efficient catalysts for the one-pot borylation/Suzuki cross-coupling reactions of aryl chlorides with bis(pinacolato)diboron. Typically, using 0.5–1.0 mol% of catalyst in the presence of 3.0 equivalents of K2CO3 as base in dioxane at 100 °C provided the corresponding symmetrical biaryls in good to excellent yields.

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