Method for preparing quinoline-5,8-diones

Details Method for preparing quinoline-5,8-diones Method for preparing quinoline-5,8-diones

C - Chemistry, Metallurgy

07

D

C07D 215/24 (2006.01) C07D 215/48 (2006.01)

Patent

CA 2393951

The invention concerns a method for preparing quinoline-5,8-diones of formula (I) wherein R¿1?, R¿2? and R¿3? are as defined in Claim 1, by light-induced oxygenation of a 8-hydroxyquinoline.

La présente invention concerne un procédé de préparation de quinoléine-5,8- diones de formule (I) dans laquelle: R1, R2 et R3 sont tels que définis à la revendication 1, par photo-oxygénation d'une 8-hydroxyquinoléine.

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