Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 39, Pages 12727-12730Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b07086
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Funding
- Research Grants Council of HKSAR [14304115]
- NSFC/RGC Joint Research Scheme [N_CUHK442/14]
- Vice-Chancellor's (CUHK) Discretionary Fund
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Transition metal catalyzed regioselective amination of the cage B(4)-H bond in o-carboranes has been achieved for the first time using O-benzoyl hydroxylamines or organic azides as the amination reagents, leading to the preparation of a series of tertiary and secondary carboranyl amines. Both amination reactions proceeded under mild conditions without the addition of any external oxidants. Hydrogenolysis of the resultant product 4-N(CH2Ph)(2)-o-carborane afforded the primary carboranyl amine, 4-amino-9-carborane, in quantitative yield.
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