Pyrazolone compounds and a process for their manufacture

Details Pyrazolone compounds and a process for their manufacture Pyrazolone compounds and a process for their manufacture

1985-04-09

1986-09-02

Downey, Mary F.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified radiation sensitive composition with color...

430505, 430555, G03C 732

Patent

active

046096205

ABSTRACT:
Compounds of the formula ##STR1## where Y is a tertiary group, X is hydrogen or a leaving group, and Q is hydrogen, amidino, alkyl or aryl, there being present in Y or Q a ballasting group which comprises 10 to 30 carbon atoms, exhibit a high secondary absorption in the blue region of the visible spectrum and are useful couplers in chromogenic monochrome negative material.

REFERENCES:
patent: 3311476 (1967-03-01), Loria
patent: 3419391 (1968-12-01), Young
patent: 4076533 (1978-02-01), Ota et al.
patent: 4273861 (1981-06-01), Shiba et al.
patent: 4366237 (1982-12-01), Ichijima et al.

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