Chloroform → Tert-butyl 6-chloro-3[(4-methoxyphenyl)sulfanyl]pyridine-2-carboxylate

Participants

Reaction Steps

4-Methoxythiophenol (0.927 ml; 7.55 mmol) and 1.14 g (8.26 mmol) of potassium carbonate were added, at room temperature, to a solution (70 ml) of 1.70 g (6.86 mmol) of the resulting ester compound in N,N-dimethylformamide followed by stirring for 1 hour. Chloroform was added to the reaction solution followed by washing with a saturated aqueous solution of sodium hydrogen carbonate and a saturated aqueous saline solution, drying and concentrating in vacuo. The resulting residue was purified by a silica gel column chromatography (hexane:ethyl acetate 9:1) to give 743 mg (yield: 31%) of tert-butyl 6-chloro-3-(4-methoxy-phenylsulfanyl)-2-pyridinecarboxylate as a colorless oily substance.

Provenance & Evidence