Acylamino quinophthalone compounds

Details Acylamino quinophthalone compounds Acylamino quinophthalone compounds

1975-04-17

1978-05-09

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260289QP, 8 1D, 260518R, 260518A, 260519, 260546, 560 48, C09B 2500

Patent

active

040886514

ABSTRACT:
Acylamino quinophthalone compounds which are free from sulfonic acid groups and correspond to the formula ##STR1## in which R.sub.1 and R.sub.2 are hydrogen, halogen, acylamino or lower alkoxy with the proviso that one of the residues R.sub.1 and R.sub.2 denotes acylamino while the other residue stands for hydrogen, halogen or a lower alkoxy; R.sub.3 is hydrogen, halogen or a lower alkoxy; X is a substituent; and n is a number from 0 to 3; are disclosed. The compounds useful as dyestuffs for hydrophobic fiber materials, e.g. polyester, are prepared by reacting an acylamino phthalic acid, the anhydride thereof, or mixtures of acylamino phthalic acids or the anhydrides thereof with a 3-hydroxy-quinalide.

REFERENCES:
patent: 2006022 (1935-06-01), Kranzlein et al.
patent: 2818410 (1957-12-01), Zwilgmeyer
patent: 3023212 (1962-02-01), Richter
patent: 3122533 (1964-02-01), Senn
patent: 3687929 (1972-08-01), Ramanathan et al.
patent: 3788810 (1974-01-01), Kalz et al.

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