Synthesis of p-(Di-n-propylsulphamyl) Benzoic Acid

Abstract

A process for the synthesis of p-carboxybenzene sulphonylchloride by oxidation of toluene-p-sulphonylchloride as well as toluene-p-sulphonic acid has been developed. p-carboxybenzene sulphonylchloride on condensation with di-n-propylamine yield p-(di-n-propylsulphamyl) -benzoic acid, an uricusuric agent employed in chronic gouty arthritis and used as an antiuric adjuvant known in trade as "Benemid, Probenecid".