反应详情

温度

60 °C

A stirred mixture of 4-hydroxy-alpha-oxobenzeneacetic acid methyl ester (0.724) in dimethylformamide (10 mL) under argon was treated with 55% sodium hydride (0.175 g), stirred for 15 minutes and treated with the tosylate prepared from 2-(cyclohexyloxy)ethanol (1.49 g). The mixture was heated at 60° C. overnight and worked up as in Example 20. The material from dichloromethane extraction was purified by HPLC (diethyl ether-hexane; 1:1) to provide 0.9 g of pure 4-[[2-(cyclohexyloxy)ethyl]oxy]-alpha-oxobenzeneacetic acid methyl ester as an oil.

1. extractionThe material from dichloromethane extraction
2. customwas purified by HPLC (diethyl ether-hexane; 1:1)