4-Bromoaniline → HCID 21500123, compound

Participants

Reaction Steps

To the boiling suspension of 4.0 g of 2,3,4,5-tetrahydro-1-benzazepine-2,3-dione-4-carboxylic acid methyl ester in 130 ml of xylene, 3.85 g of 4-bromoaniline are added while stirring and the mixture refluxed for 6 hours under nitrogen. It is cooled to room temperature, filtered and the residue recrystallized from acetonitrile-acetic acid, to yield the 4-(4-bromophenylcarbamoyl)-2,3,4,5-tetrahydro-1-benzazepine-2,3,-dione melting at 226°-228°.

Provenance & Evidence