Journal
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
Volume 2017, Issue 30, Pages 4370-4374Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201700696
Keywords
Earth-abundant metals; Cobalt; C-H activation; Alkenes; Alkylation
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Funding
- Science and Engineering Research Board (SERB) [EMR2016/000136]
- Indian Institute of Technology Kanpur (IITK)
- Council of Scientific and Industrial Research (CSIR),
- IITK for fellowships
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A simple and efficient method for Cp*Co-III-catalyzed C-H bond alkylation using activated olefins was developed. Selective C-H monoalkylation was performed at ambient temperature. One-pot symmetrical dialkylation and sequential unsymmetrical C-H dialkylation were performed to give the desired products in excellent yields. The reaction was found to proceed through an M-alkyl intermediate after migratory insertion, and this intermediate undergoes protodemetalation to give the expected alkylated product along with the regenerated catalyst.
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