Water → HCID 728460, compound

Participants

Reaction Conditions

Reaction Steps

38.42 g of trimellitic anhydride (0.2 moles), 27.4 g of p-amino-benzoic acid (0.2 moles) and 300 cc of N,N'-dimethylformamide are fed into a glass flask of 500 cc volume fitted with a mechanical stirrer, a thermometer and a vertical condenser. The reaction mixture is heated to 140° C. and left under stirring for three hours. On termination of this reaction time, the mixture is cooled to ambient temperature and poured into 2 liters of water under stirring. The precipitate is filtered off and washed repeatedly with methanol. After drying the product at 100° C. in a vacuum oven, 46.5 g of the product of the title are obtained. Yield 75%. The product structure is confirmed by NMR spectroscopy on a sample dissolved in deuterated dimethylsulphoxide.

Provenance & Evidence