4-(Chloromethyl)pyridinium chloride → Sodium phenyl(4-picolylthio)acetate

참여 물질

반응 단계

Sodium methoxide (6.8 g., 0.124 mole) was dissolved in 150 ml. of ethanol and cooled to 0° C. A solution of alpha-mercaptophenylacetic acid (7.0 g., 0.042 moles) in 50 ml. of ethanol was added over a period of 5 minutes to the cold methoxide solution. After 5 minutes, a slurry of 4-picolylchloride hydrochloride (6.83 g., 0.042 moles) slurried in 50 ml. of ethanol was then added over 5 minutes. The reaction was removed from the ice bath and left to stir for approximately 60 hours. The reaction mixture was filtered and evaporated to yield sodium phenyl(4-picolylthio)acetate (11.8 g.; waxy solid; ir: 3.0, 6.1, 6.25, 7.3, 13.6μ) used directly in the next step.

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