反应详情

A mixture of 4-fluoro-thiobenzamide (1.25 g, 8.04 mmol) and 2-chloro-3-oxo-butyric acid ethyl ester (1.11 mL, 8.20 mmol) in ethanol (18 mL) was heated at refluxed for 16 h before it was cooled to room temperature and concentrated in vacuo. It was partitioned between ethyl acetate and saturated sodium bicarbonate, the organic layer was washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo to give the title compound as a yellow solid (1.99 g): MS: (+) m/z 266.03 (M+1).

1. temperaturewas heated
2. temperatureat refluxed for 16 h before it
3. concentrationconcentrated in vacuo
4. customIt was partitioned between ethyl acetate and saturated sodium bicarbonate
5. washthe organic layer was washed with brine
6. dry with materialdried over anhydrous sodium sulfate
7. concentrationconcentrated in vacuo