Sulfam (na) phthaleins

Details Sulfam (na) phthaleins Sulfam (na) phthaleins

1977-09-23

1980-03-25

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544135, 544368, 546198, 2602433, 96 84R, 544 587, 544207, 430510, C07D27506, C07D41710, C07D27902

Patent

active

041951808

ABSTRACT:
This invention relates to 1-naphthol sulfam(na)phthaleins possessing a carbonyl moiety on the N atom of sulfam(na)phthalein ring, which compounds find utility, for example, as antihalation and filter dyes in photographic products and processes.

REFERENCES:
patent: 3702244 (1972-11-01), Bloom et al.
Beilstein, "Hand buch der Organischen Chemie", vol. 27, p. 534.
Dutt, S., J. Chem. Soc., 121, pp. 2389-2394 (1922).
Abramaitch, R., J. Chem. Soc., Perkin Translation I, 22, pp. 2589-2594 (1974).

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