Hydrochloric Acid → HCID 23675555, compound

Participants

Reaction Steps

To 17.3 g (0.1 mole) of sulfanilic acid, 100 ml of 5N sodium hydroxide solution and 100 ml of water was added 14.4 g (0.1 mole) of 4-fluorobenzyl chloride which was then mixed and heated to about 45°-55° C. in a 500-ml Erlenmeyer flask for 48 hours. After heating, the reaction mixture was poured over approximately 1 liter of cold water and acidified with concentrated hydrochloric acid. The resulting slurry was slowly filtered through a fine sintered glass funnel and a top clear yellow solution which did not pass through the filter was decanted away and discarded. The remaining off-white solid was mixed with 100 ml of ethanol and aqueous NaOH solution was added slowly until solution was achieved. The solution was then carbon treated, filtered and concentrated under reduced pressure to obtain 9.0 g of the crude product. Recrystallization from 80 ml of glacial acetic acid, followed by vacuum oven drying gave 2.4 g of the purified product, sodium 4-(((4-fluorophenyl)methyl)amino)benzenesulfonate, as white crystals which decomposed at 275° C.

Provenance & Evidence