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- W2120280764 abstract "Treatment of the title compound with various acidic and basic reagents brought about cleavage of the lactone ring to form unstable intermediates which recyclized in several manners. With strong acids the compound was transformed to γ-pyrones, with nucleophilic bases to resorcinols, and with non-nucleophilic bases to benzoylphloroglucinol. In the first two reactions the corresponding 3,5,7-triketo acid or ester is an intermediate. The use of a large excess of a chelating metal ion (Ca++) caused an isolable amount of the ester to accumulate. A ketene derivative is proposed as the intermediate in the formation of benzoylphloroglucinol. The reactions of four derivatives of the title pyrone have been explored." @default.
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- W2120280764 date "1970-01-01" @default.
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- W2120280764 title "Aromatization reactions of 4-hydroxy-6-phenacyl-2-pyrone and related compounds" @default.
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- W2120280764 doi "https://doi.org/10.1016/s0040-4020(01)98735-6" @default.
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