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AssigneeCiba-Geigy Corporation
InventorsGerald Jan, John Lenoir
Estimating the term…
Compounds of the formula ##STR1## in which X.sub.1 is hydrogen, alkyl, alkoxy, --NL.sub.1 COM.sub.1, in which L.sub.1 is hydrogen or alkyl and M.sub.1 is alkyl or alkoxy, or is --NL.sub.1 P(O)(OG.sub.1).sub.2, in which G.sub.1 is alkyl, or is alkylsulfonamide or hydroxyl, Y.sub.1 is hydrogen, alkyl, alkoxy, carbalkoxy, N-alkyl-substituted or N,N-dialkyl-substituted amino or --NL.sub.2 COM.sub.2, in which L.sub.2 is hydrogen or alkyl and M.sub.2 is alkyl or alkoxy, Z.sub.1 is hydrogen, alkyl, alkoxy, --NL.sub.2 COM.sub.3, in which M.sub.3 is alkyl, or is carbalkoxy or halogen or represents those atoms which are required to form a ring with Y.sub.1, W.sub.1 is hydrogen, alkyl or alkoxy, R.sub.1 and R.sub.2 independently of one another are hydrogen, halogen, cyano, nitro or --SO.sub.2 U.sub.3, in which U.sub.3 is alkyl or phenyl, R.sub.3 is hydrogen or alkyl or, if R.sub.4 is a direct chemical bond, the two radicals R.sub.3 together are a link member and R.sub.4 is a direct chemical bond or a link member, and at least two of the substituents W.sub.1, X.sub.1, Y.sub.1 and Z.sub.1 are other than hydrogen. The compounds can be used with particular advantage as image dyes, for example in photographic materials for the silver dye bleach process. Color images with excellent color reproduction are obtained.
A compound of the formula ##STR66## in which X.sub.4 is --NHCOM.sub.12 or --NHP(O)(OG.sub.12).sub.2, in which M.sub.12 is alkyl having 1 to 16 carbon atoms, which is unsubstituted or substituted by carbalkoxy having 2 to 5 carbon atoms or by methoxy or ethoxy, and in which G.sub.12 is alkyl having 1 to 4 carbon atoms, or X.sub.4 is hydroxyl, Z.sub.4 is hydrogen, alkyl or alkoxy having 1 to 8 carbon atoms or --CH.sub.2 CO.sub.2 R.sub.53, in which R.sub.53 is alkyl having 1 to 4 carbon atoms, --C.sub.2 H.sub.4 O).sub.2 --CH.sub.3 or --C.sub.2 H.sub.4 O--CH.sub.3, or Z.sub.4 is --(OC.sub.2 H.sub.4)n.sub.2 --OU.sub.12 or --NL.sub.21 COM.sub.32, in which U.sub.12 is hydrogen or alkyl having 1 to 4 carbon atoms, n.sub.2 is 1 or 2, L 21 is hydrogen or alkyl having 1 to 4 carbon atoms and M.sub.32 is alkyl having 1 to 8 carbon atoms, R.sub.33 is hydrogen or methyl or, if R.sub.42 is a direct chemical bond, the two radicals R.sub.33 are hydrogen or methyl or form together a link member of the formula --CH.sub.2 -- or --CO--, W.sub.2 is hydrogen or methyl, Y.sub.3 is N-alkylsubstituted or N,N-dialkylsubstituted amino, the alkyl moieties each containing 1 to 8 carbon atoms and being unsubstituted or substituted by methoxy, ethoxy, acetoxy, hydroxyl or cyano, or Y.sub.3 is --NHCOM.sub.22, in which M.sub.22 is alkyl having 1 to 4 carbon atoms, methoxy or --O--(C.sub.2 H.sub.4 O)--n.sub.2 --CH.sub.3, in which n.sub.2 is 1 or 2, R.sub.12 and R.sub.22 independently of one another are hydrogen, chlorine, bromine, cyano, nitro or methylsulfone, R.sub.42 is a direct chemical bond, or a link member of the formula --O--, --CO--, --SO.sub.2 --, --(CH.sub.2)m.sub.2 --, in which m.sub.2 is an integer from 1 to 6, or --CH.dbd.CH-- , and at least one of the substituents W.sub.2, Y.sub.3 and Z.sub.4 is other than hydrogen, and X.sub.4 L is different from hydroxyl, if Z.sub.4 is hydrogen, and Z.sub.4 is different from methyl, tert.-butyl and 1-hexyl, if R.sub.42 is the direct chemical bond, --O--, --CH.sub.2 -- or --CH.dbd.CH--, or the compounds of the formula ##STR67## wherein Y' is --OC.sub.2 H.sub.4 CH(CH.sub.3).sub.2, OC.sub.2 H.sub.4 OC.sub.4 H.sub.9, --(OC.sub.2 H.sub.4).sub.2 OCH.sub.3 or --OC.sub.3 H.sub.7.
Dependencies are inferred from the claim text.