Journal
CHEMICAL COMMUNICATIONS
Volume 51, Issue 84, Pages 15422-15425Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc06200d
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Funding
- Department of Science and Technology (DST), New Delhi [SB/S1/OC-53/2013]
- Council of Scientific and Industrial Research (CSIR) [02(0096)/12/EMR-II]
- MHRD [5-5/2014-TS-VII]
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C-3 alkylation of coumarins has been accomplished using cycloalkanes or alkylbenzenes in the presence of di-tert-butylperoxide (DTBP) and Fe-III catalyst. Under metal free conditions and just by switching the oxidant from DTBP to TBHP, an exclusive C-4 cycloalkylation-C-3 peroxidation reaction takes place. During C-3 alkylation, the C-C bond formation occurs at the expense of an existing C-C bond, while the C-4 alkylation is associated with the formation of new C-C and C-O bonds.
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