反应详情

温度

50 °C

To a solution of phenylmethyl 2-[3-(phenylmethoxy)phenyl]acetate (9.97 g, 0.03 mol) in a 5:1 mixture of THF/water was added a solution of lithium hydroxide monohydrate (2.5 g, 0.06 mol) in water. The reaction was allowed to stir at 50° C. for 6 hours and then at room temperature overnight. Solvent was removed and the reaction was acidified with 4 N HCl solution while on ice. 2-[3-(Phenylmethoxy)phenyl]acetic acid precipitated from the solution and was collected by filtration. The 2-[3-(phenylmethoxy)phenyl]acetic acid (7.0 g, 0.03 mol) was dissolved in dichloromethane (100 ml) and a small amount of DMF (4 drops) was added. To the reaction was added oxalyl chloride (5.23 ml, 0.06 mol). The reaction was allowed to stir for 6 hours, and solvents were removed to yield the title compound (7.7 g, 99% yield): ES-MS (m/z) 386 [M+H]+.

1. customat room temperature
2. customovernight
3. customSolvent was removed
4. custom2-[3-(Phenylmethoxy)phenyl]acetic acid precipitated from the solution
5. filtrationwas collected by filtration
6. stirringto stir for 6 hours
7. customsolvents were removed