Potassium Carbonate → Methyl 2-[3-(tert-butoxycarbonylamino)piperidin-1-yl]benzoate

Participants

Reaction Conditions

Reaction Steps

3-(tert-Butoxycarbonylamino)piperidine (7.07 g, 35.3 mmol) was dissolved in N,N-dimethylformamide (120 mL). To this solution, potassium carbonate (9.80 g, 70.9 mmol) and methyl 2-fluorobenzoate (5.0 mL, 39.2 mmol) were added and the mixture was stirred at 130° C. for 8 hours. Subsequently, the mixture was allowed to cool, diluted with ethyl acetate, and washed sequentially with water and brine. The washed product was dried over sodium sulfate and the solvent was evaporated. Purification of the resulting residue by silica gel column chromatography (hexane:ethyl acetate=10:1->5:1) gave 2.34 g (20%) of the desired compound as a yellow oil.

Provenance & Evidence