Anionic azo dyes having a 3-dibenzofuranyl diazo component radic

Details Anionic azo dyes having a 3-dibenzofuranyl diazo component radic Anionic azo dyes having a 3-dibenzofuranyl diazo component radic

1976-11-08

1980-01-22

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C09B 2912, C09B 3538, C09B 3540, C09B 3542

Patent

active

041850130

ABSTRACT:
Disclosed are azo dyes containing, a diazo component radical of the formula ##STR1## wherein each of Z and Z.sub.1 is independently hydrogen or sulfo, with the proviso that at least one of Z and Z.sub.1 is hydrogen, for example monoazo and disazo dyes of the formula ##STR2## and salts thereof, wherein K is a coupling component radical of the aromatic carbocyclic, active methylene group-containing aliphatic or aromatic heterocyclic series, and

REFERENCES:
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patent: 2557285 (1951-06-01), Heywood et al.
patent: 3123433 (1964-03-01), du Peloux et al.
patent: 3139421 (1964-06-01), Elslager et al.
patent: 3189595 (1965-06-01), Streck
patent: 4058516 (1977-11-01), Mislin et al.
Cullinane, J. Chem. Soc., 1932, pp. 2365-2367.

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