Sulfonic-acid-group containing disazo dyestuffs
AssigneeCiba-Geigy Corporation
InventorsBernhard Piller, John Lenoir, Alfred Froehlich, Thomas Stauner, Paul Tschopp
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Abstract
In a first main aspect azo dyestuffs of the formula ##STR1## wherein A, B, X and Y are certain substituents, in a second main aspect azo dyestuffs of the formula ##STR2## wherein B' represents certain substituents and in a third main aspect azo dyestuffs of the formula A.sub.1 --N.dbd.N--B.sub.1 --NH--CO--X.sub.1 --Y--Z.sub.1 --OC--HN--B.sub.1 --N.dbd.N--A.sub.1 wherein A.sub.1, B.sub.1, X.sub.1, Z.sub.1 and Y are certain substituents as well as the use of said azo dyestuffs in photographic material are disclosed.
Claims12
Azo dyestuff of the formula ##STR644## wherein M.sub.9 denotes benzophenone-4,4'-dicarbonyl, diphenylsulphone-4,4'-dicarbonyl, naphthalene-2,6-dicarbonyl, N-benzoylaniline-3,4'-dicarbonyl, N-benzoyl-2-chloroaniline-5,4'-dicarbonyl, 1,2-diphenoxyethane- 3',3" - or -4',4"-dicarbonyl or N,N'-dibenzoylethylenediamine- 4,4'-dicarbonyl.
Azo dyestuff of the formula ##STR647##
Azo dyestuff of the formula ##STR648## wherein D.sub.4 denotes methyl or methoxy and M.sub.6 denotes terephthaloyl, benzophenone-4,4'-dicarbonyl, diphenylsulphone-4,4'-dicarbonyl, naphthalene-2,6-dicarbonyl, N-benzoylaniline-3,4'-dicarbonyl, N-benzoyl-2-chloroaniline-5,4'-dicarbonyl, 1,2-diphenoxyethane-3',3"- or -4',4"-dicarbonyl or N,N'-dibenzoylethylenediamine-4,4'-dicarbonyl.
Azo dyestuff of the formula ##STR652## wherein D.sub.5 denotes chlorine or methyl, methoxy or trifluoromethyl and M.sub.7 denotes isophthaloyl, terephthaloyl, benzophenone-4,4'-dicarbonyl, naphthalene-2,6-dicarbonyl, diphenylsulphone-4,4'-dicarbonyl, N-benzoylaniline-3,4'-dicarbonyl, N-benzoyl-2-chloroaniline-5,4'-dicarbonyl or 1,2-diphenoxyethane-3',3"- or -4',4"-dicarbonyl or N,N'-dibenzoylethylenediamine-4,4'-dicarbonyl.
Dependencies are inferred from the claim text.