Process for producing pyrazolo[1,5-b][1,2,4]triazole derivatives

Details Process for producing pyrazolo[1,5-b][1,2,4]triazole derivatives Process for producing pyrazolo[1,5-b][1,2,4]triazole derivatives

1985-03-20

1987-11-10

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548362, C07D48704

Patent

active

047058633

ABSTRACT:
Pyrazolo[1,5-b][1,2,4]triazole derivatives are produced by ring closure of an amidoxime compound having a pyrazolyl group. The product can be used as a photographic magenta coupler as such. It is also useful as an intermediate for the magenta coupler, as a dye developer for diffusion transfer process, as an intermediate for the dye releasing agent, and as an intermediate for the photographic sensitizing dye.

REFERENCES:
patent: 3725067 (1973-03-01), Bailey et al.
patent: 4540654 (1985-09-01), Sato et al.
patent: 4621046 (1986-11-01), Sato et al.

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