Procainamide Hydrochloride → N-[4-[[2-(Diethylamino)ethyl]aminocarbonyl]phenyl]benzenemethanesulfonamide hydrochloride

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a solution of 7.1 g (0.026 moles) of procainamide hydrochloride in 100 ml acetone and 5 ml triethylamino at -50° C., is added slowly 5.0 g (0.026 moles) of α-toluenesulfonyl chloride. Stir at -50° C. for 1 hour, then warm to room temperature and stir for 16 hours. Remove the solvent in vacuo. Slurry the residue in 200 ml ether, and wash 2×100 ml portions of methylene chloride. The combined methylene chloride extracted are vacuum stripped to dryness. The residue is dissolved in 100 ml ethanol and brought to pH 3 with concentrated hydrochloric acid. The solvent is removed in vacuo, and the residue triturated with methylene-chloride to provide the title compound.

Herkunft & Nachweise