Hydrochloric Acid → 2-(1-Piperazinyl)-5-propylbenzenesulfonic acid hydrochloride
Reaction equation
[ClH:1].[N:2]1([C:8]2[CH:13]=[CH:12][C:11]([CH2:14][CH2:15][CH3:16])=[CH:10][C:9]=2[S:17]([OH:20])(=[O:19])=[O:18])[CH2:7][CH2:6][NH:5][CH2:4][CH2:3]1>C(O)C>[ClH:1].[N:2]1([C:8]2[CH:13]=[CH:12][C:11]([CH2:14][CH2:15][CH3:16])=[CH:10][C:9]=2[S:17]([OH:20])(=[O:18])=[O:19])[CH2:7][CH2:6][NH:5][CH2:4][CH2:3]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
To a mixed solution of 200 ml of ethyl alcohol and 185 ml of 1 N hydrochloric acid was added 50.0 g of 2-(1-piperazinyl)-5-n-propylbenzenesulfonic acid and the mixture was dissolved by heating. The mixture was condensed under reduced pressure, and precipitated crystals were washed with acetone and dried to give 51.46 g (yield: 95.4%) of the above title product.