Metal complexes of bis-azomethines from hydroxy-aldehydes and alkylene diamines
AssigneeCiba-Geigy Corporation
InventorsStefan Hari, Alexander McHugh Irvine, James McGeachie McCrae, Laurent Vuitel, Francois L'Eplattenier
Life of this patent
Estimating the term…
Abstract
1:1 metal complexes of bis-azomethines of the formula ##STR1## wherein R denotes an alkylene radical which contains 2-8 C atoms and is optionally interrupted by hetero-atoms, X denotes a H or halogen atom or an alkyl, alkoxy, carboxyl, alkoxy-carbonyl or phenylazo group and Y and Z denote H or halogen atoms, or wherein the substituents Y and Z form a fused benzene ring, if R contains a hetero-atom, Y and Z must not be H atoms, and if R contains 2 C atoms, X, Y and Z must not be H atoms, and a metal are valuable pigments coloring plastics and printing inks in fast yellow to range shades.
Claims10
A 1:1 nickel complex of a bis-azomethine of the formula ##STR30## wherein m denotes a number from 5-7.
A 1:1 copper, nickel or zinc complex of a bis-azomethine of the formula ##STR31## wherein V denotes an O or S atom or an imino group, Y.sub.1 denotes a H atom, a carboxyl group, an alkoxycarbonyl group containing 2-6 C atoms, a carbamoyl group, an alkylcarbamoyl group containing 2-6 C atoms or a phenylcarbamoyl group, Y.sub.2 denotes a H or halogen atom, an alkoxy group containing 1-4 C atoms or a nitro or cyano group and q and r denote a number from 2-4.
A metallized bis-azomethine of the formula ##STR33## wherein M denotes a copper, nickel or zinc atom, t denotes a number from 3-6 and Y.sub.1 denotes a H atom, a carboxyl group, an alkoxycarbonyl group containing 2-6 C atoms or a phenylcarbamoyl group and Y.sub.2 denotes a H or halogen atom, an alkoxy group containing 1-4 C atoms or a nitro or cyano group.
Dependencies are inferred from the claim text.