Naphthalimide-4,5-dicarboxylic acids

Details Naphthalimide-4,5-dicarboxylic acids Naphthalimide-4,5-dicarboxylic acids

1974-09-13

1977-02-08

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260281N, C07D21724, C07D49106

Patent

active

040071928

ABSTRACT:
Novel naphthalimide-4,5-dicarboxylic acids of the general formula ##STR1## or the anhydrides thereof, wherein R.sub.1 is hydrogen, hydroxy, amino, alkyl having 1 to 8 carbon atoms, hydroxyalkyl, alkoxyalkyl, aminoalkyl, monoalkylaminoalkyl, hydroxyalkoxyalkyl, alkoxyalkoxyalkyl, carbalkoxyalkyl, carboxyalkyl or phenylalkyl having each 1 to 6, preferably 1 to 4 carbon atoms in the alkyl or alkoxy portion or phenyl substituted by 1 to 3 halogen atoms, amino, alkyl, alkoxy, acylamino, acyl having each 1 to 4 carbon atoms, benzoyl or Carboxyl, and a process for preparing them, wherein naphthalene-1,4,5,8-tetracarboxylic acid, the mono- or dianhydride thereof are reacted as alkali salts in an aqueous solution with amines of the formula

REFERENCES:
patent: 2835674 (1958-05-01), Eckart
Gerasimenko, Yu E., et al., Chem. Abs. 69, 51997n (1967).

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