反应详情

温度

0 °C

1 g (2.6 mmol) of methyl 6-benzyloxy-5-tert-butyl-4′-methyl-3-biphenylcarboxylate is dissolved in 40 mL of anhydrous ethyl ether, and the medium is cooled to 0° C. 130 mg (3.3 mmol) of lithium aluminum hydride are added and the reaction medium is stirred for 1 hour. The reaction is hydrolysed by sequential addition of 130 μL of water, 130 μL of 15% sodium hydroxide solution and 400 μL of water. The reaction medium is filtered and the filtrate is concentrated under reduced pressure. The residue obtained is dissolved in 30 mL of dichloromethane, and 2 g (23 mmol) of manganese dioxide are added. The medium is refluxed for 5 hours, and filtered through Celite. A yellow oil is obtained (m=780 mg; yield=85%).

1. filtrationThe reaction medium is filtered
2. concentrationthe filtrate is concentrated under reduced pressure
3. customThe residue obtained
4. temperatureThe medium is refluxed for 5 hours
5. filtrationfiltered through Celite
6. customA yellow oil is obtained (m=780 mg; yield=85%)