片桐 信弥 KATAGIRI NOBUYA

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  • Ring transformation of 5-oxo-4-oxaspiro(2.3)hexanes.

    加藤 鉄三 , 片桐 信弥 , 佐藤 廉三

    1-Ethoxycarbonyl-5-oxo-4-oxaspiro [2.3] hexane (3), on treatment with sodio methyl acetoacetate in THF, was transformed into 3-hydroxy-4-ethoxycarbonyl-2-cyclopenten-1-one (5) in 82% yield. Reaction o …

    Chemical and Pharmaceutical Bulletin 29(8), 2361-2366, 1981

    J-STAGE DOI

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