Color-forming sulfonamidodiphenylamines and corresponding sulfon

Details Color-forming sulfonamidodiphenylamines and corresponding sulfon Color-forming sulfonamidodiphenylamines and corresponding sulfon

1982-06-08

1985-02-12

Waltz, Thomas A.

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

Organic compounds

Amino nitrogen containing

260401, 260453RW, 2603977R, 260505R, 560 12, 560 13, 560 27, 562405, 564 49, 564 79, 564 81, 564 82, 564 83, 564 84, 564 99, 8593, C07C14379, C09B 4904

Patent

active

044993048

ABSTRACT:
Color-forming para-sulfonamidodiphenylamines and their corresponding sulfonimide dyes are useful in imaging materials. The color-forming sulfonamidodiphenylamines are prepared by condensation reactions. The corresponding sulfonimide dyes are formed by oxidation of the color-forming sulfonamidodiphenylamines by means of a suitable oxidizing agent, such as the oxidized form of a cross-oxidizing silver halide developing agent.

REFERENCES:
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patent: 2349749 (1944-05-01), Paul
patent: 3284499 (1966-11-01), Dunbar
patent: 3482971 (1969-12-01), Bloom et al.
patent: 3755605 (1973-08-01), Moore et al.
patent: 3938995 (1976-02-01), Gompf et al.
patent: 4014647 (1977-03-01), Neeff
patent: 4170452 (1979-10-01), Grollier et al.
patent: 4380666 (1983-04-01), Gabrielsen et al.
Journal of Chem. Soc., 1956, pp. 3814-3820, G. M. K. Hughes et al.
Res. Dis., Dec., 1978, Item No. 17643.

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