To the solution of
AA–OH (1 mmol) in ACN at 60 °C, K2CO3 (1.5 mmol) was added, followed by the addition of allyl bromide/dimethyl
bromide/crotyl bromide/cinnamyl bromide/geranyl bromide (1.2 mmol).
The reaction was stirred at 60 °C for 12 h. After quenching the
reaction mixture with ice, the crude product was extracted with ethyl
acetate, followed by washing with water (30 mL). After drying over
anhydrous sodium sulfate, the excess solvent was evaporated under
vacuum to get the desired compound.