6-hydroxychroman derivative

Details 6-hydroxychroman derivative 6-hydroxychroman derivative

1989-09-25

1991-08-27

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D31160

Patent

active

050434608

ABSTRACT:
There is provided a silver halide color photographic material containing a 6-hydroxychroman derivative in combination with a specific coupler, i.e., a 5-pyrazolone type magenta coupler having an -SR group at the coupling position or a 5-pyrazolone type magenta coupler having an anilino group at the 3-position. The photosensitive material provides photographic images, quality of which is prevented from deteriorating as time passes. The photographic color images are free from discoloration or fading and do not form yellow stains on a white background.

REFERENCES:
patent: 3227554 (1966-01-01), Barr et al.
patent: 4113495 (1978-09-01), Shishido et al.
patent: 4264720 (1981-04-01), Hamaoka et al.
patent: 4264723 (1981-04-01), Ichijima et al.
patent: 4310623 (1982-01-01), Watanabe et al.
patent: 4351897 (1982-09-01), Aoki et al.
patent: 4383027 (1983-05-01), Ishikawa et al.
patent: 4556630 (1985-12-01), Fututochi et al.

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