Water → HCID 66777216, compound

Participants

Reaction Steps

To a solution (200 mL) of 1-[5-(benzyloxy)-2-hydroxyphenyl]ethanone (15.3 g) synthesized in Example A82(1) in N,N-dimethylformamide were added potassium carbonate (13.1 g) and ethyl bromoacetate (7.7 mL) at room temperature, and the mixture was stirred at room temperature for 1 hr. Water was added to the reaction mixture, and the mixture was extracted with diethyl ether. The extract was concentrated under reduced pressure, the obtained residue was dissolved in N,N-dimethylformamide (100 mL) again, and 1,8-diazabicyclo[5.4.0]undec-7-ene (12.2 mL) was added to the solution. The reaction mixture was stirred at 80° C. overnight. After cooling to room temperature, water was added to the reaction mixture, and the mixture was extracted with diethyl ether. The extract was concentrated under reduced pressure and the obtained solid was washed with ethanol-isopropyl ether to give the title object compound (3.3 g, 17%) as a colorless solid.

Provenance & Evidence