Hydrochloric Acid → (S)-2-(Pyrrolidin-2-yl)acetonitrile hydrochloride

Participants

Reaction Conditions

Reaction Steps

A solution of tert-butyl (S)-2-cyanomethylpyrrolidine-1-carboxylate (Intermediate 139, 13.0 g) in methanol (130 mL) and concentrated hydrochloric acid (13 mL) was stirred and heated at 40° C. overnight. After cooling, the mixture was concentrated under vacuum and the residue was diluted with toluene and reconcentrated. Ethanol (20 mL) was added and the resultant solid was collected by filtration and washed with hexane to give ((S)-pyrrolidin-2-yl)acetonitrile hydrochloride (8.0 g) as a white solid.

Provenance & Evidence