Quinoline-4-carboxylic acid derivatives

Details Quinoline-4-carboxylic acid derivatives Quinoline-4-carboxylic acid derivatives

1990-02-02

1991-12-10

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546101, 546169, 546173, C07D21550

Patent

active

050719874

ABSTRACT:
Quinoline-4-carboxylic acids derivatives are useful as dye-forming components for pressure- and heat-sensitive recording materials and have of the general formula I ##STR1## where one of R.sup.1, R.sup.2 and R.sup.3 is hydrogen while the other two are each independently of each other hydrogen, fluorine, chlorine, bromine, linear or branched C.sub.1 -C.sub.5 -alkyl, hydroxyl, C.sub.1 -C.sub.10 -alkoxy, which may be interrupted in the alkyl by 1 or 2 oxygen atoms, or is ##STR2## R.sup.7 is hydrogen, methyl or ethyl and R.sup.8 is C.sub.1 -C.sub.4 -alkanoyl, benzoyl, p-chlorobenzoyl, C.sub.1 -C.sub.6 -alkyl, benzyl or p-chlorobenzyl, or

REFERENCES:
patent: 3985376 (1976-10-01), Bauman et al.
patent: 4625027 (1986-11-01), Zink et al.
patent: 4668966 (1987-05-01), Zink et al.
patent: 4680299 (1987-07-01), Hesson
J. Prakt. Chem., vol. 38, pp. 582-584, W. Pfitzinger, "Chinolinderivate Aus Isatinsaure".
Dyes and Pigments, vol. 8, 1987, pp. 281-290, D. W. Rangnekar et al., "Synthesis of 2-Aryl-6-Substituted Quinolines and Their Use as Fluorescent Brightening Agents".
Chem. Ber., 20, pp. 277-281, O. Doebner, "Ueber Alpha-Alkyl-Cinchoninsauren", 1887.

Affiliated with

Also associated with

Rating

Quinoline-4-carboxylic acid derivatives does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Quinoline-4-carboxylic acid derivatives, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quinoline-4-carboxylic acid derivatives will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1041836