Novel quinoline derivatives

Details Novel quinoline derivatives Novel quinoline derivatives

1977-02-10

1979-04-17

Coughlan, Jr., Paul M.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

106288Q, 8 1D, 260 37P, 546167, C09B 2500, C07D40104

Patent

active

041500253

ABSTRACT:
A compound of the formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a lower alkyl group; R.sub.2 and R.sub.5, independently from each other, represent a hydrogen atom, a halogen atom or a lower alkyl group; one of R.sub.3 and R.sub.4 represents an imido group of the formula ##STR2## in which Y represents a 1,2-phenylene, 1,2-naphthylene, 2,3-naphthylene or 1,8-naphtylene group optionally containing at least one substituent, and the other represents a hydrogen atom, a halogen atom or a lower alkyl group; R.sub.6 represents a hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; and X represents a halogen atom; with the proviso that when R.sub.3 represents the imido group, R.sub.2 represents a hydrogen or halogen atom. This compound can be prepared by reacting a corresponding quinaldine derivative with a tetrahalophthalic acid or a reactive derivative thereof. A yellow organic pigment comprising this compound as a coloring ingredient is useful for coloring polymeric materials.

REFERENCES:
patent: 3622583 (1971-11-01), Dehnert
patent: 3788810 (1974-01-01), Kalz
patent: 4067870 (1978-01-01), Shimada et al.
Gething, B., et al, J. Chem. Soc., (1961), 1574-1576.
Pratt, D., et al., J. Am. Chem. Soc., 40, (1918), p. 254.

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