Sodium Hydroxide → Ethyl 3-mercapto-2-methylpropanoate

Participants

Reaction Steps

At -20° C., 3N NaOH (150 mL, 450 mmol) was added dropwise to a solution of ethyl 3-(acetylthio)-2-methylpropanoate (66.47 g, 349 mmol, Step 5) in 700 mL of MeOH and the mixture was stirred at that temperature for 30 min. 25% Ag NH4OAc was then added and the title thiol was extracted with EtOAc, dried over MgSO4, concentrated and distilled to yield 42.52 g (82%) of the title compound as an oil; bp: 96°-98° C./15 mm Hg.

Provenance & Evidence