Journal
CHEMICAL SCIENCE
Volume 9, Issue 47, Pages 8871-8875Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8sc03754j
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Funding
- Research Grants Council of Hong Kong [CUHK 24301217]
- Chinese University of Hong Kong [4053276]
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We herein describe an unprecedented 1,2-bis(trifluoromethylation) of arynes with [CuCF3] in the presence of an oxidant DDQ. The method allows the rapid construction of a new class of 1,2-bis(trifluoromethyl)arenes in one-step from aryne precursors under mild conditions. Its synthetic utility has been demonstrated in the preparation of bis(trifluoromethylated) molecules with potential pharmaceutical and materials science applications. Mechanistic studies indicated the presence of an o-trifluoromethyl aryl radical intermediate via CF3 group transfer from [CuCF3] to the aryne.
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