A palladium catalyzed/silver tuned selective mono- and tetra-acetoxylation of o-carboranes has been developed, and a series of mono- and tetra-acetoxylated o-carboranes decorated with active groups have been synthesized with moderate to good yields as well as excellent selectivity. A mechanism involving electrophilic palladation and cyclopalladation of the B–H bond was proposed.
K. Cao, T. Xu, J. Wu, L. Jiang and J. Yang, Chem. Commun., 2016, 52, 11446 DOI: 10.1039/C6CC06200H
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