Synthesis of substituted sulfam(na)phthaleins

Details Synthesis of substituted sulfam(na)phthaleins Synthesis of substituted sulfam(na)phthaleins

1978-11-02

1980-07-01

Jiles, Henry R.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544135, 544368, 546 94, 548207, 2602455, C07D27902, C07D27506

Patent

active

042107520

ABSTRACT:
The present invention is concerned with synthesizing certain ##STR1## by reacting (a) a 3,3-disubstituted sulfam(na)phthalein wherein one of the 3-substituents is a 4'-hydroxy-1'-phenyl moiety or a 4'-hydroxy-1'-naphthyl moiety substituted in the 3'-position with a perhalomethylcarbinol group and (b) an acid halide, ##STR2## wherein W is chloro or bromo and Y is hydrogen or an electron-withdrawing group, preferably, in the presence of a zeolite molecular sieve or acid alumina to give (c) the corresponding ##STR3## The compounds produced are useful, for example, as pH-sensitive indicator dyes or as photographic light-screening dyes.

REFERENCES:
Matzner et al., "Chem. Reviews," vol. 64, (1964), pp. 656, 661 & 662.
McClelland et al., "J. Chem. Soc.," (1940), pp. 323-327.
Royals, "Advanced Organic Chemistry," p. 617.
McOmie, "Protective Groups in Organic Chemistry," (1973), pp. 145, 146, 157-159.
Beilstein's, "Handbuch der Organischen Chemie" vol. 27, p. 534.
Mustafa et al., "J. Chem. Soc." (1952), pp. 1339-1340.
Abramovitch et al., "J. Chem. Soc.," Perkin Trans I, 22, pp. 2589-2594 (1974).
Dutt, "J. Chem. Soc." 121, pp. 2389-2394 (1922).

Affiliated with

Also associated with

Rating

Synthesis of substituted 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 Synthesis of substituted sulfam(na)phthaleins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthesis of substituted sulfam(na)phthaleins will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-299383