Sodium hydride → HCID 89650378, compound

Participants

Reaction Steps

NaH (55-65%; 44 mg; 1.09 mmol; 1.2 eq.) was added to a solution of 3-fluoro-4-hydroxy-piperidine-1-carboxylic acid tert-butyl ester (200 mg; 0.91 mmol; 1 eq.) in THF (15 mL) and the resulting mixture was stirred at room temperature for 15 minutes whereupon 2-fluoro-benzaldehyde (113 mg; 0.91 mmol; 1 eq.) was added dropwise. The reaction mixture was stirred at room temperature for 15 hours then at 60° C. for a further 4 hours. NaH (44 mg; 1.09 mmol; 1.2 eq.) was added and the resulting mixture was stirred at 60° C. for 2 hours. The solution was diluted with brine extracted with EA (2×). The combined organic layer was washed with brine, dried over magnesium sulfate and concentrated in vacuo. Purification by column chromatography (DCM then EtOAc) afforded the title compound (196 mg, 66%) as a yellow oil.

Provenance & Evidence