Method for combating harmful microorganisms using 2-hydroxy-benzophenone derivatives
AssigneeCiba-Geigy Corporation
InventorsMax Dunnenberger, Max Schellenbaum
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Abstract
The present invention provides a method for combating harmful microorganisms, which comprises applying to a desired site an effective amount of 2-hydroxy-benzophenone of the formula ##SPC1## Wherein Z.sub.1 denotes halogen or alkyl, X.sub.1 and Y.sub.1 each denote hydrogen, halogen, alkyl, cycloalkyl, benzene or substituted benzene, X.sub.2, X.sub.3, X.sub.4, Y.sub.2 and Y.sub.3 each denote hydrogen, halogen or alkyl and X.sub.5 denotes hydrogen or halogen, with the number of the alkyl, benzene and cyclohexyl radicals as substituents being together at most 4. The anti-bacterial range of these 2-hydroxy benzophenones extends both to gram-positive and gram-negative bacteria.
Claims7
A method for combatting fungi or bacteria, which comprises applying to a site infested by or to be protected against bacteria or fungi an antibacterially or antifungally effective amount of a 2-hydroxybenzophenone of the formula ##SPC14##
- wherein Z.sub.3 denotes chlorine or methyl, Y.sub.10 denotes methyl, hydrogen or chlorine, and X.sub.17, X.sub.18, X.sub.19 and Y.sub.9 each denote hydrogen, chlorine or methyl, with at least three of the X and Y substituents representing hydrogen and not more than one of the X, Y and Z substituents representing methyl.
A method for combatting fungi or bacteria, which comprises applying to a site infested by or to be protected against bacteria or fungi an antibacterially or antifungally effective amount of a 2-hydroxy-benzophenone of the formula ##SPC18##
- wherein X.sub.20 denotes hydrogen or chlorine and X.sub.21 denotes hydrogen, chlorine or methyl and n is 1 or 2.
Dependencies are inferred from the claim text.