SCHEDULED MAINTENANCE
A ring-opening [3+2] annulation reaction between cyclopropenones and amides was developed to produce 5-amino-2-furanones. Insertion of the carbonyl group of an amide to the C–C single bond of a cyclopropenone occurred efficiently in the presence of a catalytic amount of silver(I) triflate.
![Graphical abstract: Silver-catalyzed ring-opening [3+2] annulation of cyclopropenones with amides](/en/Image/Get?imageInfo.ImageType=GA&imageInfo.ImageIdentifier.ManuscriptID=C8NJ04579H&imageInfo.ImageIdentifier.Year=2018)
T. Matsuda, Y. Tabata and H. Suzuki, New J. Chem., 2018, 42, 19178 DOI: 10.1039/C8NJ04579H
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