Benzoisothiazoleazobenzmorpholine of tetrahydroquinone compounds
AssigneeEastman Kodak Company
InventorsRonald J. Maner, Max A. Weaver
Life of this patent
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Abstract
Azo compounds, having the formula ##STR1## in which R.sup.1 and R.sup.2 are hydrogen, alkyl, alkoxy or halogen and A is a 2-position substituted tetrahydroquinoline type coupler which may be further substituted, or a benzomorpholine type coupler for disperse azo dyes, produce bright, level reddish-blue to blue shades on synthetic polyamide fiber and exhibit good to excellent fastness to light, sublimation, ozone and gas.
Claims7
A compound having the formula ##STR10## wherein R.sup.1 and R.sup.2 each is hydrogen, lower alkyl, lower alkoxy, chloro or bromo and A is ##STR11## wherein R.sup.3 is hydrogen, lower alkyl, lower alkoxy, chlorine, bromine, lower alkanoylamino, or lower alkoxycarbonylamino;
- R.sup.4 is hydrogen;
- R.sup.5 is hydrogen, lower alkyl or when R.sup.3, R.sup.6 and R.sup.7 each is methyl, R.sup.5 methyl;
- R.sup.6, r.sup.7 and R.sup.9 each is hydrogen or R.sup.6 and R.sub.7 each is methyl;
- and
- R.sup.8 is lower alkyl or lower alkyl substituted with hydroxy, sulfonamido, lower alkylsulfonamido, lower dialkylsulfonamido, lower alkoxy, cyano, carbamoyl, lower alkylcarbamoyl, lower dialkylcarbamoyl, acetamido, hydroxy substituted lower alkanoylamino, lower alkanoyloxy, or lower alkoxycarbonyl.
A compound having the formula ##STR12## wherein R.sup.1 is hydrogen, chloro or bromo positioned at the 5 or 6 position;
- R.sup.3 is methyl, lower alkoxycarbonylamino or lower alkanoylamino;
- R.sup.5 is hydrogen or lower alkyl;
- and
- R.sup.8 is lower alkyl substituted with sulfonamido, lower alkylsulfonamido, lower dialkylsulfonamido, hydroxy substituted lower alkanoylamino;
- lower alkyl;
- hydroxyethyl;
- hydroxypropyl;
- lower alkoxyethyl;
- lower alkoxypropyl;
- carbamoylethyl;
- lower alkylcarbamoylethyl;
- lower alkanoylaminoethyl;
- lower alkanoylaminopropyl;
- lower alkoxycarbonlaminoethyl;
- lower alkoxycarbonylaminopropyl;
- lower alkylsulfonamidoethyl or lower alkylsulfonamidopropyl.
Dependencies are inferred from the claim text.