Liang C, Chen Z, Hu X, Yu S, Wang Z, Cheng J. Phosphine-catalyzed ring-opening reaction of cyclopropenones with dicarbonyl compounds.
Org Biomol Chem 2023;
21:7712-7716. [PMID:
37702379 DOI:
10.1039/d3ob01409f]
[Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
We developed a phosphine-catalyzed ring-opening reaction of cyclopropenones with dicarbonyl compounds as C-nucleophiles, leading to 1,3,3'-tricarbonyl compounds. During this neutral procedure, C-acylation is more dominant than O-acylation. This transition-metal free procedure features mild and neutral reaction conditions with good atom economy. As such, it represents a facile pathway to access 1,3,3'-tricarbonyl derivatives.
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