(3S)-N,N-dimethylpyrrolidin-3-amine;hydrochloride

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: In a dried reaction flask, the crude (S)-butyl 3-(dimethylamino)pyrrolidine-1-carboxylate (2.0 g) obtained in the above step was added to CH2Cl2 (30 mL). HCl gas was passed thereto for 3 hr. The solution was concentrated under reduced pressure to obtain a crude yellow viscous material (1.6 g). In a dried reaction flask The solution was concentrated under reduced pressure