Kenny, Miles and Kitson, Daniel J. and Franckevicius, Vilius (2016) Catalytic chemo- and regioselective coupling of 1,3-dicarbonyls with N‐heterocyclic nucleophiles. Journal of Organic Chemistry, 81 (12). pp. 5162-5172. ISSN 0022-3263
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Abstract
The development of a decarboxylative palladium-catalyzed coupling of 1,3-dicarbonyl compounds with indole, pyrrole, imidazole, and pyrazole nucleophiles via an allylic linker under neutral conditions is disclosed. This process enables the installation of an all-carbon quaternary center and new C−C and C−N bonds in a single operation. Despite the weakly acidic nature of N-heterocycles, the reactions proceed with good efficiency and complete regio- and chemoselectivity.