Method of production of azo dyes from a quinone containing compo

Details Method of production of azo dyes from a quinone containing compo Method of production of azo dyes from a quinone containing compo

1975-06-19

1978-02-14

Warren, Charles F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260155, 260156, 260157, 260160, 260162, 260163, 260165, 260176, 260184, 260186, 260187, 260190, 260191, 260192, 260193, 260194, 260195, 260197, 260199, 260200, 260201, 260203, 260204, C07C10702, C07C10704, C07C10708

Patent

active

040737810

ABSTRACT:
A method of preparing an azo dye containing a quinone residue useful as an intermediate for dyes and dye developers suitable for the color diffusion transfer process comprising reacting a quinone residue-containing coupler with a diazonium compound whereby the necessity of protection steps may be avoided.

REFERENCES:
patent: 3717624 (1973-02-01), Buehler et al.
Brassard et al., Can. J. Chem., 36, 1346-1349, (1958).
Kehrmann et al., Ber., 30, 2125-2130, (1897).

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