Dimethylcarbamoyl Chloride → N'-(4-{[(3,6-Dichloropyridin-2-yl)methyl]sulfanyl}phenyl)-N,N-dimethylurea

Participants

Reaction Steps

A solution of 4-(((3,6-dichloro-2-pyridinyl)methyl)-thio)benzenamine (10 grams; 0.035 mole) in 25 ml. of dry pyridine was prepared and dimethyl carbamoyl chloride (3.77 grams; 0.035 mole) added thereto while maintaining the temperature of the reaction mixture at 24°-45° C. The resulting reaction mixture was stirred at ambient temperatures for a period of about 15 hours and then mixed with ice and allowed to stand for a period of about 2 hours. The aqueous layer was decanted and the residue washed with water and recrystallized twice from ether. As a result of the above operations, the desired N'-(4-(((3,6-dichloro-2-pyridinyl)-methyl)thio)phenyl)-N,N-dimethyl urea compound was recovered as a crystalline solid having a melting point of 112°-113.5° C.

Provenance & Evidence