Pronounced effects of substituents on the iridium-catalyzed borylation of aryl C–H bonds‡

Literature Information

Publication Date 2009-08-20
DOI 10.1039/B913949D
Impact Factor 6.222
Authors

Carl W. Liskey, Carolyn S. Wei, Dale R. Pahls, John F. Hartwig


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Abstract

Iridium trisboryl complexes containing bisphosphine and bipyridine ligands and pinacolate and catecholate substituents on boron are reported. A large difference in reactivity towards the borylation of C–H bonds is observed for this series of trisboryl complexes, and this difference is attributed to the electron-donating properties of the pinacolate vs.catecholate groups, and the steric and electronic properties of bipyridinevs.bisphosphine ligands.

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