4-Cyanobenzenesulfonyl chloride → 7-(n-Butyl)-3-[(4-cyanophenyl)sulfonyl]-9,9-dimethyl-3,7-diazabicyclo[3.3.1]nonane hydrochloride

Participants

Reaction Steps

A solution of 2.5 g of 4-cyanobenzenesulfonyl chloride in 20 ml of dichloromethane was added dropwise with ice-cooling to a solution of 2.37 g of 7-(n-butyl)-9,9-dimethyl-3,7-diazabicyclo[3.3.1]nonane in 30 ml of dichloromethane. The ice-cooling was then removed, and the reaction mixture was stirred at room temperature for one hour. The hydrochloride of the title compound was thereupon deposited as a white precipitate. The crystals were filtered out with suction and dried at 60° C. in a vacuum drying oven. 2.5 g of 7-(n-butyl)-3-[(4-cyanophenyl)sulfonyl]-9,9-dimethyl-3,7-diazabicyclo[3.3.1]nonane hydrochloride having a melting point of 98° to 99° C. were obtained.

Provenance & Evidence