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Abstract:
An efficient method for the copper-catalyzed selective C-H difluoroalkylation of coumarins and with low cost and readily available ethyl bromodifluoroacetate andN-phenyl bromodifluoroacetamide has been reported. This reaction exhibits good functional group tolerance with respect to coumarins and difluoroalkylation reagents, and several redox-sensitive substrates have been successfully C-H difluoroalkylated in good to high yield. This design could further expand the scope to other heteroarenes, including furan, benzofuran, pyrrole, pyridinone, chromenone, indole, and quinolinone. A mechanism involving copper-catalyzed in-situ generation of fluoroalkyl radical is proposed.
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CHEMCATCHEM
ISSN: 1867-3880
Year: 2020
Issue: 20
Volume: 12
Page: 5256-5260
5 . 6 8 6
JCR@2020
3 . 8 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:160
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 16
SCOPUS Cited Count: 13
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
Affiliated Colleges: