On the preparation of 2-benzopyrylium-4-oxide and its cycloaddition properties

PG Sammes, RJ Whitby

文献索引：Sammes, Peter G.; Whitby, Richard J. Journal of the Chemical Society, Chemical Communications, 1984 , # 11 p. 702 - 703

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被引用次数: 1

摘要

... Soc., Chem. Commun., 1984, 702-703. On the preparation of 2-benzopyrylium-4-oxide and its cycloaddition properties. (Note: The full text of this document is currently only available in the PDF Version ). Peter G. Sammes and Richard J. Whitby. Treatment of 1-acetoxy-1H-2-benzopyran- 4-one with either base or heat generates the parent 2-benzopyrylium-4-oxide system which gives intermolecular cycloadducts with a variety of dipolarophiles, including olefins.