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  • Title: Borylation of aryldiazonium ions with N-heterocyclic carbene-palladium catalysts formed without added base.
    Author: Ma Y, Song C, Jiang W, Xue G, Cannon JF, Wang X, Andrus MB.
    Journal: Org Lett; 2003 Nov 27; 5(24):4635-8. PubMed ID: 14627402.
    Abstract:
    [reaction: see text] 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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