Sulfam(na)phthaleins

Details Sulfam(na)phthaleins Sulfam(na)phthaleins

1977-09-23

1979-12-11

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

260239R, 548209, 544 62, 544133, 544135, 544368, 546 95, 546198, C07D27506

Patent

active

041784464

ABSTRACT:
This invention relates to phenol sulfam(na)phthaleins possessing a ##STR1## group wherein Y represents an electron-withdrawing group substituted on the N atom of the sulfam(na)phthalein ring, which compounds find utility as photographic optical filter agents and filter agent precursors.

REFERENCES:
patent: 3702244 (1972-11-01), Bloom et al.
Dutt, S., J. Chem. Soc., 121, pp. 2389-2394 (1922).
Abramovitch, R., "J. Chem. Soc.", Perkin Translations 22, pp. 2589-2594 (1974).
Suzuki, H., "Electron Absorption Spectra and Geometry of Organic Molecules", 1967, pp. 114-116.
Breslow, R., "Organic Reaction Mechanisms", 1969.
Beilstein, "Handbuch der Organischen Chemie", vol. 27, p. 534.

Affiliated with

Also associated with

Rating

Sulfam(na)phthaleins does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sulfam(na)phthaleins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sulfam(na)phthaleins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-311481