反应详情

温度

100 °C

10 g of methyl 4-hydroxybenzoate and 20.5 g of 4-(2-chloroethyl)morpholine were dissolved in 100 ml of dimethylformamide and, after the addition of 38 g of potassium carbonate heated to 100° C. for 1 hour. The reaction mixture obtained was poured on to ice-water, extracted with ethyl acetate, dried and evaporated. The oily, slightly brown residue was saponified with potassium hydroxide in water/ethanol and, after acidification and recrystallization from hexane/ethyl acetate, gave 7.3 g of p-(2-morpholinoethoxy)benzoic acid in beige crystals, m.p. 112°-114° C.

1. customThe reaction mixture obtained
2. extractionextracted with ethyl acetate
3. customdried
4. customevaporated
5. customafter acidification and recrystallization from hexane/ethyl acetate