Method of preparing...

Details Method of preparing... Method of preparing...

C - Chemistry, Metallurgy

07

D

C07D 213/89 (2006.01)

Patent

CA 2183869

The present invention relates to a process for the preparation of 1-hydroxypyridones of the formula I (I) Image in which R is a phenyl radical or phenoxy radical which can be substituted as indicated in claim 1, from the corresponding pyrones with hydroxylamine or a hydroxylammonium salt.

L'invention concerne un procédé de préparation de 1-hydroxypyridones de la formule générale (I), dans laquelle R désigne un reste phényle ou phénoxy pouvant être substitué comme mentionné dans la revendication 1, à partir des pyrones correspondants avec de l'hydroxylamine ou un sel d'hydroxylammonium.

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