反应详情

The product mixture was solved in 10 ml of pyridine and treated with 2.33 ml (21.2 mmol) of acetic anhydride without further purification for 15 h at room temperature. The resulting solution was poured into 100 ml ethyl acetate and extracted three times against 100 ml of 1N HCl. The organic layer washed twice with 50 ml of brine and dried over MgSO4. After evaporation of the solvent chromatographic purification over silica gel using a 7:2 (v/v) mixture of n-hexane and ethyl acetate gave 8.04 g of 3,5-diacetoxystyrene as a colorless oil (36.5 mmol, 87%).

1. extractionextracted three times against 100 ml of 1N HCl
2. washThe organic layer washed twice with 50 ml of brine
3. dry with materialdried over MgSO4
4. customAfter evaporation of the solvent chromatographic purification over silica gel using
5. additiona 7:2 (v/v) mixture of n-hexane and ethyl acetate