4-Chlorophenyl Isocyanate → N-(4-chlorophenyl)-N'-cyclohexanesulfonylurea

Participants

Reaction Steps

The general method of procedure A was followed with cyclohexanesulfonamide (1.89 g), acetone (5 ml), 1N sodium hydroxide (11.6 ml). After stirring overnight at room temperature, the mixture was cooled in an ice bath and 4-chlorophenyl isocyanate (1.89 g) dissolved in acetone (5 ml) was added. The mixture was warmed to room temperature and stirred two days, filtered, and the separated white solid washed with water. The filtrates were combined and treated with glacial acetic acid (1 ml) followed by addition of water. The resulting solid was collected by filtration, washed with water and air dried to provide 2.57 g of a tan powder.

Provenance & Evidence