Metal complexes of azomethines and process for their manufacture
AssigneeCiba-Geigy Corporation
InventorsFrancois L'Eplattenier, Andre Pugin, Jost VON DER Crone
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Abstract
Metal complexes of azomethines of the formula ##STR1## are useful for coloring plastics and lacquers in yellow to red shades of excellent fastness properties.
Claims5
An azomethine metal complex of the formula ##STR166## in which R.sub.3 is hydrogen, M.sub.1 is Ni, Cu, Co or Zn, A is a radical of the formulae ##STR167## in which Q is methyl, alkoxycarbonyl with 2 to 5 carbon atoms or carbamoyl, R.sub.8 is cyano, or carbamoyl, R.sub.9 is hydrogen, or hydroxy, Y.sub.2 and Y.sub.3 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, or nitro, Y.sub.4 is oxygen, sulfur or amino, Y.sub.6 is hydrogen, carboxy, carbamoyl, alkoxycarbamoyl containing 2 to 6 carbon atoms, alkylcarbamoyl containing 2 to 6 carbon atoms, phenylcarbamoyl, phenylcarbamoyl substituted in the phenyl moiety by halogen, alkyl of 1 to 4 carbon atoms, or alkoxy of 1 to 4 carbon atoms, Y.sub.7 is hydrogen, halogen, methoxy, nitro or cyano, Y is a group of the formulae ##STR168## in which Y.sub.2, Y.sub.3 and Y.sub.4 have the above-indicated meanings, R.sub.6 is hydrogen, alkyl of 1 to 4 carbon atoms, phenyl, phenyl substituted by halogen, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms, R.sub.4 is cyano, acyl, alkoxycarbonyl, carbamoyl, sulphamoyl, or a radical of the formula ##STR169## in which V is oxygen, sulfur or imino, Y.sub.2 and Y.sub.3 have the meaning indicated above.
Dependencies are inferred from the claim text.