反应详情

Under an argon atmosphere, 2 g of [(8-acetyl-7-hydroxy-2-naphthalenyl)oxy]acetic acid methyl ester was added to a suspension of 0.32 g of 60% sodium hydride in 30 ml of anhydrous dimethylformamide. The mixture was stirred at room temperature for 40 minutes and then 11.6 g of bis[2-[2-bromoethoxy)ethyl]ether was added and the mixture was stirred at room temperature for 20 hours. The resulting dark mixture was concentrated in vacuo to an oil which was dissolved in methylene chloride, washed with water and concentrated to give an oil. Purification by high pressure liquid chromatography (35% ethyl acetate-toluene) gave 3.0 g (80%) of [[8-acetyl-7-[2-[2-[2-(2-bromoethoxy)ethoxy]ethoxy]ethoxy]-2-naphthalenyl]oxy]acetic acid methyl ester as an oil.

1. stirringthe mixture was stirred at room temperature for 20 hours
2. concentrationThe resulting dark mixture was concentrated in vacuo to an oil which
3. dissolutionwas dissolved in methylene chloride
4. washwashed with water
5. concentrationconcentrated
6. customto give an oil
7. customPurification by high pressure liquid chromatography (35% ethyl acetate-toluene)