反应详情

A mixture of 10 g of 4-bromo-2-isopropylphenyl benzyl ether, 4.7 g of 4-ethoxyphenol, 4.7 g of potassium carbonate, 0.30 g of copper powder, 0.30 g of cuprous iodide and 30 ml of pyridine was stirred at 130° C. to 140° C. for 24 hours. The reaction solution was cooled to room temperature, poured into ice-water and then acidified by adding 10% hydrochloric acid. The solution was extracted with 100 ml of diethyl ether, washed in turn with 10% hydrochloric acid, an aqueous 10% sodium hydroxide solution and a saturated saline solution, dried over anhydrous magnesium sulfate and then concentrated. The residue was subjected to silica gel column chromatography to give 4.4 g of 4-(4-ethoxyphenoxy)-2-isopropylphenyl benzyl ether (yield, 37%).

1. extractionThe solution was extracted with 100 ml of diethyl ether
2. washwashed in turn with 10% hydrochloric acid
3. dry with materialan aqueous 10% sodium hydroxide solution and a saturated saline solution, dried over anhydrous magnesium sulfate
4. concentrationconcentrated