Hydrochloric Acid → HCID 23675557, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 17.2 g of sulfanilic acid, 100 ml of 5 Normal (N) sodium hydroxide solution, 100 ml of water and 16.1 g of 3-chlorobenzyl chloride was stirred in a 500-ml Erlenmeyer flask and heated to about 40°-50° C. After 5 days, a small portion of the reaction mixture was poured into dilute hydrochloric acid. A white precipitate formed which was insoluble in boiling water. The remaining portion of the reaction mixture was poured over 800 ml of ice-water, acidified with concentrated hydrochloric acid, and then filtered through a sintered glass funnel. After filtering, about 50 ml of slurry remained in the funnel. This slurry was put in a beaker, 200 ml of ethanol was added and the mixture was warmed to about 50° C. A solution of 5N sodium hydroxide was added dropwise until solution was achieved. The solution was carbon treated and filtered. Concentration of the filtrate gave a gummy semisolid which was recrystallized from 200 ml of acetic acid containing a small quantity of water. After vacuum oven drying, 5.4 g of the purified product, sodium 4-(((3-chlorophenyl)methyl)amino)benzenesulfonate, was obtained as an off-white solid having a melting point (mp) greater than 280° C.

Provenance & Evidence