Ruthenium-Catalyzed Selective B(4)-H Amidation of o-Carboranes with Dioxazolones

초록

A ruthenium-catalyzed selective B4 amidation of o-carboranes with a variety of alkyl-, aryl-, and heteroaryl-substituted dioxazolones is developed by carboxylic acid-assisted B(4)-H bond activation in o-carborane acids, affording a multitude of (4)-amidated o-carboranes in good yields with the evolution of carbon dioxide. In addition, the two-fold selective decarboxylative amidation reaction of the cage B(4)-H bond in o-carborane was accomplished.

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