Hydrochloric Acid → (2-Methanesulfonylpyridin-4-yl)methanamine hydrochloride

Participants

Reaction Conditions

Reaction Steps

To a 500 mL reactor was charged tert-butyl (2-(methylsulfonyl)pyridin-4-yl)methylcarbamate (20.0 g, 65.65 mmol, 94.0 wt. %) followed by i-PrOH (140 mL). The slurry was stirred and treated with concentrated HCl (16.4 mL, 196.96 mmol, 3.0 eq), and then heated to 65° C. and held at this temperature for 3 hours. The batch was cooled to 20-25° C., held at this temperature for at least 2 hours, and then filtered. The solid was washed with i-PrOH and then oven dried under vacuum to afford the title compound as a white solid, 13.45 g, >99 wt. % purity, 92% yield.

Provenance & Evidence