Mechanochemical Iridium(III)-Catalyzed B-Amidation of o-Carboranes with Dioxazolones.
Org Lett
; 23(21): 8622-8627, 2021 Nov 05.
Article
em En
| MEDLINE
| ID: mdl-34662139
ABSTRACT
Mechanochemistry was successfully applied to the functionalization of carboranes. The mechanochemical iridium(III)-catalyzed regioselective B(3)- and B(4)-amidation of unsubstituted o-carboranes with dioxazolones was developed. In addition, the mechanochemical iridium(III)-catalyzed regioselective B(4)-amidation of substituted o-carboranes was demonstrated. Because mechanochemical B-amidation proceeds smoothly without organic solvents or external heating, the present method is regarded as a sustainable and environmentally friendly surrogate for typical solvent-based reactions.
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2021
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Article