1-piperidin-1-ylpyrrolidin-2-one

Conditions: temp:0.00; pressure:0.00; stir:

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

Procedure: Add NaH (1 g, 25 mmol) into 4-chloro-N-piperidin-1-yl-butyramide (Preparation 10) (3.2 g, 16 mmol) in THF (100 mL) and stir for 1 hour. Add the reaction mixture into water and extract with ethyl acetate (100 mL). Wash the organic layer with brine (20 mL), dry with magnesium sulfate, filter and evaporate solvent under reduced pressure. Purify the residue by column chromatography to give the title product (2 g, 76%) as yellow oil: Mass spectrum (ion spray): m/z=169.1 (M+H). extract with ethyl acetate (100 mL) Wash the organic layer with brine (20 mL) dry with magnesium sulfate filter evaporate solvent under reduced pressure Purify the residue by column chromatography