2,6-Dichloropyridine → N-{4-[(6-Chloropyridin-2-yl)sulfanyl]phenyl}acetamide

Participants

Reaction Conditions

Reaction Steps

4-Acetamidothiophenol (16.8 grams; 0.1 mole) was mixed with a solution of sodium methylate (prepared by mixing sodium metal (2.3 grams; 0.1 mole) in 90 ml. of methanol) and the resulting sodium 4-acetamidothiophenol solution added over a period of about 1 hour to a well-stirred solution of 2,6-dichloropyridine (14.8 grams; 0.1 mole) in 100 ml. of dimethylsulfoxide. The reaction mixture was distilled during the addition and the reaction temperature maintained at about 100° C. for this period and for a period of about 2 hours thereafter. The reaction mixture was then poured into 350 ml. of water and the resulting product precipitate recovered by filtration, washed several times and taken up in 300 ml. of hot benzene and dried and treated with Norite. About 350 ml. of hexane was added to precipitate the product from the benzene solvent which was recovered by filtration. As a result of such operations, the desired N-(4-((6-chloro-2-pyridinyl)thio)phenyl)acetamide compound was recovered as a crystalline solid which was found to have carbon, hydrogen, nitrogen, chlorine and sulfur contents of 56.2, 4.3, 9.9, 11.4 and 11.63 percent, respectively, as compared with the theoretical contents of 56.0, 3.96, 10.05, 12.7 and 11.45, respectively, calculated for the named structure.

Provenance & Evidence