Hydroxyphenyl ketones
AssigneeCiba-Geigy Corporation
InventorsRene Muntwyler, Raphael Menasse
Life of this patent
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Abstract
Hydroxyphenyl ketones of the formula: ##STR1## in which n is 0, 1, 2 or 3, X is C or N and Y is C, N or N.fwdarw.O, the heterocyclic structure containing not more than 2 N atoms as ring members, R.sub.1 and R.sub.2 are each H, F, Cl, Br, NO.sub.2, CH.sub.3 or OCH.sub.3, R.sub.3 is H, Cl, Br, NO.sub.2, CN, CH.sub.3, OCH.sub.3, NH.sub.2 or NHCOCH.sub.3 and R.sub.4 is H, Cl, Br or CH.sub.3 or together with R.sub.3 is a benzene ring fused at the bond [b], if X is C, and R.sub.5 is hydrogen or a group of the formula ##STR2## if n=1. Processes for the preparation of these compounds are also proposed. The said compounds can be used to control harmful micro-organisms.
Claims10
A hydroxyphenyl ketone of the formula:
- ##STR44## in which n is the number 0, 1, 2 or 3, wherein the hydroxyl group is in the 3-position only when n is 0 or 1, R.sub.1 and R.sub.2 independently of one another are hydrogen, fluorine, chlorine, bromine, nitro, methyl or methoxy, R.sub.3 is hydrogen, chlorine, bromine, methyl or methoxy, R.sub.4 is hydrogen, chlorine, bromine or methyl, and R.sub.5 is hydrogen or, if n is 1, a group of the formula:
- ##STR45## in which R.sub.3 and R.sub.4 are as defined above.
Dependencies are inferred from the claim text.