Pigmentary imido-perinones

Details Pigmentary imido-perinones Pigmentary imido-perinones

1975-06-23

1977-08-02

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D47122

Patent

active

040395456

ABSTRACT:
Imido-perinones falling within one of the formulae: ##STR1## wherein R.sub.1 represents the tetravalent residue of a substituted or unsubstituted aromatic hydrocarbon, R.sub.2 represents a substituted or unsubstituted aliphatic or aromatic radical and X represents a primary amino, carboxy or hydroxy group, process for the preparation of such imido perinones which comprises condensing a tetracid of the formula: ##STR2## or the corresponding anhydride with 4,5-diamino-1,8-naphthalic anhydride at the rate of at least two moles of diamine per mole of tetracid and then condensing the perinone dianhydride thus obtained with an amine of the formula:

REFERENCES:
patent: 2225392 (1940-12-01), Pool et al.
patent: 3544573 (1970-12-01), Christmann

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