Process for preparing alpha-halogenated retones
OwnerRoland Jacquotinventor
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Abstract
The invention concerns a method for preparing α-halogenated ketones from secondary α-halogenated alcohols. More particularly, the invention concerns the preparation of α-trihalogenated ketones from secondary α-trihalogenated alcohols. The method for preparing said α-halogenated ketone is characterized in that it consists in oxidizing in liquid phase, a secondary α-halogenated alcohol, using molecular oxygen or a gas containing same, in the presence of a catalyst based on a metal M1 selected among metals of group 1b and 8 of the periodic system of elements and optionally an activating element.
Claims33
A process for preparing an α-halogenated ketone, characterized in that it consists of oxidising, in the liquid phase, an α-halogenated secondary alcohol using molecular oxygen or an oxygen-containing gas in the presence of a catalyst based on a metal M1 selected from metals from groups 1b and 8 of the periodic table.
1,1,1-trifluoro-4-octene-2-one;
- 1,1,1-trifluoro-4-nonene-2-one;
- 1,1,1-trifluoro-4-decene-2-one;
- 4-trifluoroacetylanisole;
- 4-trifluoroacetyl-2-hydroxytoluene;
- 2,6-trifluoroacetyl-nonyl-4-phenol;
- 3-(trifluoroacetyl)pyridine.
Dependencies are inferred from the claim text.