Potassium Carbonate → HCID 66683855, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 6-hydroxy-3,4-dihydroquinolin-2(1H)-one (5.0 g), tert-butyl 4-(methanesulfonyloxy)piperidine-1-carboxylate (13 g) and potassium carbonate (5.1 g) in N,N-dimethylformamide (30 mL) was stirred at 100° C. for 20 hours. The reaction mixture was cooled to room temperature, diluted with water and extracted with chloroform. The organic layer was washed with brine and concentrated under reduced pressure. The resulting residue was purified by NH-type silica gel column chromatography (eluting solvent: chloroform/hexane=4/1) to give the titled compound (6.9 g, 65%) as a colorless solid.

Provenance & Evidence