Azo(hydrazo)-anthraquinone compounds

Details Azo(hydrazo)-anthraquinone compounds Azo(hydrazo)-anthraquinone compounds

1979-02-23

1980-08-05

Doll, John

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260152, 260207, 260378, 430170, 430226, 430357, 430390, C07C 2910, C07C 2936, C07C 9724

Patent

active

042161460

ABSTRACT:
Novel azo(hydrazo)-anthraquinone compounds and their preparation are provided.
These compounds are of the general formula ##STR1## where R is hydrogen or at least one substituent, T.sub.1 is hydrogen, an hydroxy or alkoxy group or an amino or substituted amino group, R.sub.1 is hydrogen or halogen, an alkoxy, an amino or substituted amino group, an aryl or substituted aryl group, or a group conferring solubility in water and R.sub.2 is a group which comprises an azo linkage and a ballasting group or is a group which completes the hydrazo link and which comprises a ballasting group. The new compounds are useful in the photographic field, especially in the photographic dye diffusion transfer process for the production of photographic images.

REFERENCES:
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patent: 2884424 (1959-04-01), Klingsberg
patent: 2920072 (1960-01-01), Kolliker et al.
patent: 3541182 (1970-11-01), Kolliker et al.
patent: 3622558 (1971-11-01), Kolliker et al.
patent: 3997519 (1976-12-01), Armbruster
patent: 4001204 (1977-01-01), Krutak et al.
patent: 4108850 (1978-08-01), Fields et al.

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