反应详情

温度

0 °C

2.50 g (12.1 mmol) of ethyl amino(pyridin-2-yl)acetate [G. van Zyl et al., J. Org. Chem. 1961, 26, 3373] are introduced into 20 ml of dichloromethane and, after addition of 4.9 ml (60.3 mmol) of pyridine, cooled to 0° C. A solution of 1.86 g (12.1 mmol) of (2-fluorophenyl)acetyl chloride is then slowly added, and the mixture is stirred at 0° C. for 30 min and then at RT for 2 h. It is diluted with ethyl acetate, washed with sodium bicarbonate solution and dried over sodium sulfate. The crude product is purified by chromatography on silica gel (eluent: cyclohexane/ethyl acetate 1:1). 2.9 g (76% of theory) of the desired product are obtained.

1. waitat RT for 2 h
2. washwashed with sodium bicarbonate solution
3. dry with materialdried over sodium sulfate
4. customThe crude product is purified by chromatography on silica gel (eluent: cyclohexane/ethyl acetate 1:1)