4.8 Article

Metal-Catalyzed Cascade Rearrangements of 3-Alkynyl Flavone Ethers

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ORGANIC LETTERS
卷 15, 期 8, 页码 1962-1965

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AMER CHEMICAL SOC
DOI: 10.1021/ol400631b

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  1. National Institutes of Health [P50 GM067041, CA 099920]
  2. NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM099920, P50GM067041] Funding Source: NIH RePORTER

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Metal-mediated rearrangements of 3-alkynyl flavone ethers are reported. The overall process involves 5-endo enyne cyclization to a platinum. containing spiro-oxocarbenium intermediate which may be trapped with methanol to produce spirodihydrofurans or further rearranged to afford either allenyl chromanediones or benzofuranones.

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