Magenta couplers

Details Magenta couplers Magenta couplers

1974-07-22

1976-02-17

Moyer, Donald B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D23108

Patent

active

039391760

ABSTRACT:
Magenta couplers of the 5-pyrazolone type which have a phenylcarbamylamino substituent in the 3-position of the pyrazolone nucleus and which have, as a substituent in the 1-position of the pyrazolone nucleus, a 2', 4'-dihalo-6'-alkoxyphenyl group or a 2', 6'-dihalo-4'-alkoxyphenyl group.

REFERENCES:
patent: 2369489 (1945-02-01), Porter et al.
patent: 3062653 (1962-11-01), Weissberger et al.
patent: 3558319 (1971-01-01), Hamaoka et al.
patent: 3823156 (1974-07-01), Oku et al.

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