反应详情

The mixture of 2-(4-chloro-benzenesulfonyl)-3-ethoxy-acrylic acid methyl ester (7.62 g, 25 mmol) and 3-chloroaniline (3.19 g, 25 mmol) in diphenyl ether (20 ml) was heated at near reflux for 1 h. After cooling the precipitate was filtered and washed with ether to obtain 4.25 g of the title compound in 48.0% yield.

1. temperaturewas heated
2. temperatureat near reflux for 1 h
3. temperatureAfter cooling the precipitate
4. filtrationwas filtered
5. washwashed with ether