3-Cyano or acyl-4-aryl-5-arylazo-6-hydroxypyridone-2 dyes

Details 3-Cyano or acyl-4-aryl-5-arylazo-6-hydroxypyridone-2 dyes 3-Cyano or acyl-4-aryl-5-arylazo-6-hydroxypyridone-2 dyes

1974-09-11

1977-03-08

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2602948R, 2602948E, 2602949, 260295R, 260295AM, 260297Z, C09B 2936, D06P 326, D06P 336, D06P 354

Patent

active

040112080

ABSTRACT:
Compounds of the formula ##STR1## wherein R.sub.1 is a benzene or naphthalene diazo component,

REFERENCES:
patent: 1606209 (1926-11-01), De Montmollin et al.
patent: 2675375 (1954-04-01), Marson et al.
patent: 2746951 (1956-05-01), Taube
patent: 2980665 (1961-04-01), Langley
patent: 3042648 (1962-07-01), Lewis
patent: 3083195 (1963-03-01), Elslager
patent: 3481918 (1969-12-01), Straley et al.
patent: 3487066 (1969-12-01), Ritter et al.

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