Journal of the Chemical Society. Chemical communications p. 702 - 703 (1984)
Update date:2022-07-29
Topics:
Sammes, Peter G.
Whitby, Richard J.
Treatment of 1-acetoxy-1H-2-benzopyran-4-one with either base or heats generates the parent 2-benzopyrylium-4-oxide system which gives intermolecular cycloadducts with a variety of dipolarophiles, including olefins.
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