反应详情

To an aqueous solution of 55 m moles (7.6 g) of 4-hydroxybenzoic acid and 65 m moles (2.6 g) of sodium hydroxide in 200 ml of water, 65 m moles (10.6 g) of carbobenzoxychloride was added dropwise at 0° C. After 24 hours, the precipitate was washed with water, filtered, and dried, then purified by column chromatography to obtain 15.0 g of 4-carbobenzoxyoxybenzoic acid [m.p. 181.9°-183.1° C⟧ (yield: 99%)

1. washthe precipitate was washed with water
2. filtrationfiltered
3. customdried
4. custompurified by column chromatography