Journal of Organic Chemistry p. 4419 - 4424 (1984)
Update date:2022-07-29
Topics:
Chantegrel, Bernard
Nadi, Abdel Ilah
Gelin, Suzanne
A convenient method for the synthesis of ethyl 2-substituted chromone-3-carboxylates by the condensation of o-acetoxyaroyl chlorides with β-keto esters is described.These chromones are converted into the corresponding 4H-<1>benzopyrano<3,4-d>isoxazol-4-on
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