Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 3, Pages 766-769Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.5b12249
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Funding
- National Science Foundation [CHE-1265988]
- Bristol-Myers Squibb
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Cobalt dialkyl and bis(carboxylate) complexes bearing a-diimine ligands have been synthesized and demonstrated as active for the C(sp(3))-H borylation of a range of substituted alkyl arenes using B(2)Pin(2) (Pin = pinacolate) as the boron source. At longer reaction times, rare examples of polyborylation were observed, and in the case of toluene, all three benzylic C-H positions were functionalized. Coupling benzylic C-H activation with alkyl isomerization enabled a base-metal-catalyzed method for the borylation of remote, unactivated C(sp(3))-H bonds.
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