Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1981-12-21
1988-03-22
Higel, Floyd D.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
162162, 106 23, 106288Q, 106308Q, 534575, 534581, 534745, 534887, C09B 33153, C09B 35035, D06P 144, D06P 379
Patent
active
047329750
ABSTRACT:
Compounds of the general formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and denote hydrogen, chlorine or bromine, methyl, ethyl, methoxy, ethoxy or nitro and K denotes identical or different radicals of enolizable ketomethylene compounds which do not contain groups imparting solubility in water, are obtained by coupling one equivalent of the bisdiazonium compound obtained by bisdiazotizing the diamine of the formula ##STR2## in which R.sup.1 and R.sup.2 have the meaning mentioned above, with 2 equivalents of one or more compounds of the formula KH in which K has the meaning mentioned above. These disazo compounds are pigments which have a high tinctorial strength and good fastness to migration, light, heat and chemicals.
REFERENCES:
patent: 2164785 (1939-07-01), Rossander
patent: 2286391 (1942-06-01), Sparus
patent: 2741657 (1956-04-01), Schmid et al.
patent: 2944050 (1960-07-01), Haubrich et al.
patent: 3627750 (1971-12-01), Ronco
patent: 3838145 (1974-09-01), Altermatt
patent: 3956266 (1976-05-01), Mory et al.
patent: 3963694 (1976-06-01), Mory et al.
patent: 4169830 (1979-10-01), Hunger
patent: 4296028 (1981-10-01), Moiso et al.
Chemical Abstracts, vol. 51 (1957)-3154/55 (Societe).
Higel Floyd D.
Hoechst Aktiengesellschaft
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