反应详情

To a solution of 31.0 g of 3,5-diethyl-1-benzoyloxy-4-(4-(2,2-diethoxyethoxy)butyloxy)benzene dissolved in 100 ml of methanol was added a solution of 5.1 g of potassium hydroxide dissolved in 25 g of water. After stirring at room temperature for 1 hour, the reaction mixture was acidified by the addition of diluted hydrochloric acid, and concentrated. The residue was poured into water, and extracted twice with ethyl acetate. The ethyl acetate layers were combined, washed with water, dried over anhydrous magnesium sulfate, and concentrated to give a crude product. This crude product was subjected to silica gel chromatography, which afforded 0.60 g (yield, 94%) of 3,5-diethyl-4-(4-(2,2-diethoxyethoxy)butyloxy)phenol, nD25.0 1.4890.

1. concentrationconcentrated
2. additionThe residue was poured into water
3. extractionextracted twice with ethyl acetate
4. washwashed with water
5. dry with materialdried over anhydrous magnesium sulfate
6. concentrationconcentrated
7. customto give a crude product