An efficient synthesis of substituted cyclopentenes through gold/gallium-catalyzed annulation of 1,3-dicarbonyl compounds and cyclopropylacetylenes is achieved. This tandem reaction consists of a gold-catalyzed Nakamura reaction, a catalytic dienol–enone tautomerization, and a gallium-catalyzed vinylcyclopropane (VCP) rearrangement.
B. Dong, Y. Xi, Y. Su, N. G. Akhmedov, J. L. Petersen and X. Shi, RSC Adv., 2016, 6, 17386 DOI: 10.1039/C6RA00896H
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