Journal
CHINESE JOURNAL OF ORGANIC CHEMISTRY
Volume 40, Issue 7, Pages 2026-2034Publisher
SCIENCE PRESS
DOI: 10.6023/cjoc202003002
Keywords
tin powder; 3-hydroxy-2-oxindoles; allylation
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Funding
- National Natural Science Foundation of China [21861033, 21462037]
- Natural Science Foundation of Gansu Province [18JR3RA091]
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An efficient tin-powder-promoted C-C coupling reaction of 3-aryl-3-hydroxy-2-oxindoles with allyl bromide was disclosed, which makes tin-powder-promoted reactions beyond 1,2-addition to C=O or C=N double bounds, and provides a convenient and facile protocol for the synthesis of potentially bioactive 3,3'-disubstituted-2-oxindoles in good to excellent yields. The method is highly efficient and environmentally benign with low cost and concise manipulation.
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