反应详情

A solution (21 ml) of 1N sodium hydroxide in ethanol was added to a solution of 8.3 g of diethyl [6-(4-carbethoxyphenoxy)hexyl]phosphonate (Example 8) in 20 ml of ethanol. The reaction mixture was stirred at room temperature for two days. The solid fraction was collected, digested with 100 ml of ether, filtered and dried to give 7.0 g of diethyl [6-(4-carboxyphenoxy)hexyl]phosphonate in the form of its sodium salt, m.p. 215°-216° C.

1. customThe solid fraction was collected
2. filtrationfiltered
3. customdried