Acetic Acid → HCID 57625337, compound

Participants

Reaction Steps

4-Fluorobenzylamine (3.14 g, 25.9 mmol) was dissolved in methanol (150 mL). 1-(trifluoroacetyl)-4-piperidone (5.07 g, 25.9 mmol) was added, and the pH was adjusted to ˜5 with acetic acid. The reaction mixture was stirred for 5 min and NaBH3CN (2.46 g, 38.9 mmol) was added slowly under stirring. After 20 h at room temperature the reaction was concentrated. 2 M NaOH (100 mL) was added and the aqueous phase was extracted with dichloromethane (2×100 mL). The combined organic phases were dried over Na2SO4, filtered and concentrated to give N-(4-fluorobenzyl)-1-(trifluoroacetyl)piperidin-4-amine (50ELH85, 2.91 g, 37%).

Provenance & Evidence