反应详情

To a suspension of ethyl 2-(1-hydroxyethyl)acrylate (40 g) and imidazole (28.3 g) in N,N-dimethylformamide (200 ml)was added portionwise t-butyldimethylsilyl chloride (46 g) at 0° C. After the mixture was stirred for 10 hours, the reaction mixture was poured into a mixture of water and ethyl acetate. The aqueous layer was separated and extracted twice with ethyl acetate. The combined organic layers were washed with water, 1N hydrochloric acid, saturated aqueous sodium hydrogencarbonate, water and an aqueous sodium chloride in turn, and then dried over magnesium sulfate. The evaporation of the solution gave ethyl 2-[1-(t-butyl-dimethylsilyloxy)ethyl]acrylate (68.5 g).

1. customThe aqueous layer was separated
2. extractionextracted twice with ethyl acetate
3. washThe combined organic layers were washed with water, 1N hydrochloric acid, saturated aqueous sodium hydrogencarbonate, water
4. dry with materialan aqueous sodium chloride in turn, and then dried over magnesium sulfate
5. customThe evaporation of the solution