Lactones of quinoline carboxylic acids

Details Lactones of quinoline carboxylic acids Lactones of quinoline carboxylic acids

1977-11-21

1980-04-29

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 14, 544126, 544361, 544344, 546170, 8 1B, C07D49114

Patent

active

042007518

ABSTRACT:
Lactone electron donative color-forming agents of quinoline-carboxylic acid are disclosed having the general formulae (I) and (II) ##STR1## wherein A and B represent a variety of chemical moieties, X represents halo- or nitro- and n.sup.1 is an integer of 0-4. The color-forming agents are useful in recording materials of the pressure-sensitive and heat-sensitive varieties, and the like.

REFERENCES:
patent: 3931228 (1976-01-01), Borror

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