Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 15, Issue 16, Pages 3413-3417Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c7ob00701a
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Funding
- National Natural Science Foundation of China [21572225]
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Oxadiazolones are first employed as the three-atom coupling partners in the Tf2NH-catalyzed cycloaddition with ynamides. This formal [3 + 2] cycloaddition allows a rapid synthesis of aminoimidazoles with a broad substrate scope. The approach also features a metal-free catalytic cycloaddition process, which may find applications in the synthesis of bioactive molecules. Besides, the resulting N-methyl products can further be readily converted to free N-H aminoimidazoles.
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