期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 139, 期 20, 页码 6847-6850出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b03371
关键词
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资金
- Robert A. Welch Foundation [F-0038]
- NIH-NIGMS [RO1-GM069445]
Under the conditions of nickel(0) catalysis, enantiomerically enriched vinyl dioxanones engage boroxines or B-2(pin)(2) in stereospecific cross-coupling to form diverse tetrasubstituted cyclopropanes bearing all-carbon quaternary stereocenters. The collective data corroborate a mechanism involving nickel(0)-mediated benzylic oxidative addition with inversion of stereochemistry followed by reversible olefin insertion to form a (cyclopropylcarbinyl)nickel complex, which upon reductive elimination releases the cyclopropane.
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