Journal
JOURNAL OF HETEROCYCLIC CHEMISTRY
Volume 56, Issue 10, Pages 2822-2830Publisher
WILEY
DOI: 10.1002/jhet.3666
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Funding
- National Natural Science Foundation of China [21702078]
- Major Basic Research Project of the Natural Science Foundation of the Jiangsu Higher Education Institutions [17KJA150003]
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2-Bromobenzoic acids underwent an alpha-arylation with cyclohexane-1,3-diones to give 1H-benzo[c]chromene-1,6(2H)-diones under Ar atmosphere catalyzed by CuI/l-proline in the presence of Cs2CO3. The subsequent regioselective oxidation took place under O-2 balloon automatically based on the substituents for the construction of structurally diversified benzo[c]coumarin derivatives.
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