70998-48-0

Upstream product

• 150-13-0 4-amino-benzoic acid 
• 94-09-7 p-aminoethylbenzoate 
• 122-04-3 4-nitro-benzoyl chloride 
• 63069-46-5 ethyl 4-<(4'-aminobenzoyl)amino>benzoate 
• 50888-97-6 ethyl 4-<(4'-nitrobenzoyl)amino>benzoate 
• 19717-14-7 4-(4-Nitrobenzoylamino)-benzoic acid 
• 70998-50-4 4-[4-(4-nitro-benzoylamino)-benzoylamino]-benzoic acid ethyl ester 

Downstream Products

• 70998-43-5 4-[4-(4-aminobenzamido)benzamido]benzoic acid 

Relevant academic research and scientific papers

Synthesis of aromatic and heteroaromatic oligoamides on methoxypoly(ethylene glycol) as solubilizing polymer support

A protecting-group-free procedure for the synthesis of short carbo- and heteroaromatic oligoamide chains on MeO-PEG as solubilizing support is introduced. Starting from nitrocarboxylic acids, oligoamides of carboxylic acids derived from N-methylpyrrole, N-methylimidazole and aniline are synthesized that contain up to five arene units. The polymer support facilitates work up procedures and markedly improves the otherwise poor solubility of the products. Each coupling step is monitored by 1H-NMR spectroscopy without cleavage of the product from the polymeric support.

Soluble oligoaramide precursors - A novel class of building blocks for rod-coil architectures

A new synthetic route is described that allows the reversible conversion of the inherently insoluble oligo-p-benzamides into soluble materials through the formation of imidoyl chlorides. Syntheses of the corresponding dimer, trimer, and tetramer are repor