Water → 2-(4-chlorobenzenesulphonamido)-N-(3-imidazol-1-ylpropyl)benzamide

Participants

Reaction Steps

2-Amino-N-(3-imidazol-1-ylpropyl)benzamide (32.9 g) was dissolved in pyradine (165 ml) and 4-chlorobenzenesulphonyl chloride (41.2 g) was added in portions. The temperature of the reaction mixture rose to 52° C. The solution was stirred at room temperature for 4 hours and poured into water (1.5 l) to precipitate an oil which slowly solidified on standing. The solid was collected, washed with water and recrystallised from ethanol to give 2-(4-chlorobenzenesulphonamido)-N-(3-imidazol-1-ylpropyl)-benzamide (24.4 g), in the form of a white solid, m.p. 175°-177° C.

Provenance & Evidence