Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1982-02-08
1985-06-04
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
430225, 430431, 430563, 430564, 534689, 534727, 534819, 534822, 534823, 534829, 534831, C09B 3510, C09B 35215, C09B 35233, C09B 3528
Patent
active
045215910
ABSTRACT:
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.
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Jan Gerald
Lenoir John
Ciba-Geigy AG
Higel Floyd D.
Kolodny Joseph G.
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