反应详情

15.5 g of 5,8-dimethoxy-1,2,3,4-tetrahydro-2-hydroxy-2-naphthaleneacetic acid in 150 ml of tetrahydrofuran were added dropwise within 15 minutes to 3.32 g of lithium aluminum hydride in 150 ml of tetrahydrofuran. The reaction mixture was heated to reflux for 1 hour and then cooled. After the dropwise addition of 15 ml of ethyl acetate and 20 ml of water the suspension was filtered and the filtrate was concentrated. The product was purified by column chromatography (silica gel, chloroform/methanol 30:1). There was obtained 5,8-dimethoxy-1,2,3,4-tetrahydro-2-hydroxy-2-naphthaleneethanol, m.p. 121°-122°.

1. temperatureThe reaction mixture was heated
2. temperatureto reflux for 1 hour
3. temperaturecooled
4. filtrationwas filtered
5. concentrationthe filtrate was concentrated
6. customThe product was purified by column chromatography (silica gel, chloroform/methanol 30:1)