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Borylation of Aryldiazonium Ions with N-Heterocyclic Carbene−Palladium Catalysts Formed without Added Base

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posted on 2003-11-27, 00:00 authored by Yudao Ma, Chun Song, Wei Jiang, Guoping Xue, John F. Cannon, Xiaomei Wang, Merritt B. Andrus
A highly efficient catalytic borylation process with aryldiazonium ions was developed using a carbene−palladium catalyst formed in situ to give arylpinacolatoborane products. An X-ray structure for the N-heterocyclic carbene−palladium complex, used as the catalyst formed from bis(2,6-diisopropylphenyl)-4,5-dihydroimidazolium chloride, was obtained without added base.

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