ES313818A1 - Procedure for the obtaining of basically rented diimides of naftalin- (1,4,5,8) -tetracarboxylic acid. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

"Process for obtaining diimides basically alkylated from naphthalene- (1,4,5,8) -tetracarboxylic acid", characterized in that either a) the anhydrides of the general formula ** (See formula) ** or the corresponding tetracarboxylic acid, is reacted with amines of the general formula ** (See formula) ** the side chain can also be synthesized stepwise, where A means a branched or unbranched alkylene chain with up to 6 carbon atoms, which may be interrupted by oxygen and/or sulfur and/or -CONH- and/or unsaturated, or substituted by aliphatic or aromatic rings, optionally substituted by halogen, alkyl or amino radicals, or a branched or unbranched, saturated or unsaturated alkylenic radical, with 7 to 20 carbon atoms, which may be interrupted by oxygen and/or sulfur and/or -CONH- or by OH and/or by aliphatic or aromatic rings, optionally substituted by halogen, alkyl or amino radicals, or a saturated or unsaturated non-aromatic ring, R and R1 signify hydrogen or alkyl residues saturated or unsaturated, branched or unbranched, with 1 to 20 carbon atoms which may be interrupted by oxygen and optionally substituted imino radicals by alkyl, cycloalkyl or aryl and/or substituted by rad hydroxyl radicals, or by cycloalkyl and aryl radicals, which may be substituted by halogen, alkyl, amino and nitro radicals, n means 1 or 2, R2, R3, R4 and R5 are hydrogen, alkyl radicals having 1 to 4 carbon atoms , halogen, hydroxy, nitro, amino and acetyl radicals, and R6 means hydrogen or alkyl radicals with 1 to 4 carbon atoms, or b) diimides of the general formula ** (See formula) ** they are alkylated in the form of their metal compounds with halides of the general formula ** (See formula) ** or c) amines of general formula ** (See formula) ** they are allowed to react on halides of the general formula ** (See formula) ** or d) nitriles of the general formula ** (See formula) ** where D means an alkylenic chain with 0 to 5 carbon atoms, they are reduced, in a preferably catalytic manner, in the presence of suitable aldehydes, such as formaldehyde. (Machine-translation by Google Translate, not legally binding)