Dimethyl Sulfoxide → 5-[5-[4-(2-Methoxyphenyl)-1-piperazinyl]valeryl]-2-methylthio-benzenesulfonamide

Participants

Reaction Conditions

Reaction Steps

A mixture of 5 g of 5-(5-chlorovaleryl)-2-methylthio-benzenesulfonamide, 3.4 g of 1-(2-methoxyphenyl)piperazine, 2.0 g of sodium carbonate and 25 ml of dimethyl sulfoxide was heated at 90° C. for 6 hours while stirring. After the reaction was finished, 100 ml of water and 100 ml of ethyl acetate were added to the reaction mixture and the stirring was continued for 30 minutes to produce crystals. The thus-produced crystals was filtered off to obtain 6.0 g of the titled compound (yield: 80.5%).

Provenance & Evidence