Liu L, Zhang L. Access to electron-rich arene-fused hexahydroquinolizinones through a gold-catalysis-initiated cascade process.
Angew Chem Int Ed Engl 2012;
51:7301-4. [PMID:
22692916 DOI:
10.1002/anie.201203303]
[Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Indexed: 11/10/2022]
Abstract
Golden Cascade: With a tethered, electron-rich arene as the internal nucleophile, a gold-catalyzed amide cyclization to an alkyne initiates a cascade process that ends with a Ferrier rearrangement. Electron-rich arene-bearing hexahydroquinolizin-2-ones are formed in good yields and can be converted into indole alkaloids in only a few steps.
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