Water → HCID 66848259, compound

Participants

Reaction Steps

To a solution of (2S)-1-tert-butoxycarbonyl-4-methyl-pyrrolidine-2-carboxylic acid (26.6 g, 116.0 mmol) in THF (160 mL) is added 1 M borane in THF (243.6 mL, 243.6 mmol) at 0° C. The reaction mixture is stirred at rt overnight. Then a saturated aqueous solution of NH4Cl (50 mL) is carefully added (dropwise) at 4° C., followed by H2O (100 mL). The mixture is extracted with EtOAc and the organic phase is washed with H2O, dried over Na2SO4, filtered and concentrated to dryness. The residue is purified by flash column chromatography on silica gel (0 to 20% EtOAc in Hexanes) to give tert-butyl (2S)-2-(hydroxymethyl)-4-methyl-pyrrolidine-1-carboxylate (23.5 g, 94%).

Provenance & Evidence