反应详情

温度

115 °C

A mixture of 2-(4-chloro-2-nitro-phenyl)-3-hydroxy-but-2-enoic acid methyl ester (4.66 g, 17.2 mmol), iron (5.76 g, 103 mmol) and glacial acetic acid (16 mL) is heated at 115° C. for 1 h and allowed to cool. The reaction mixture is diluted with water and ethyl acetate. The ethyl acetate layer is washed with brine and dried over MgSO4. The mixture of the title compound and a small amount of impurity is used in the next reaction without additional purification. ES/MS m/e 224.0 (M+1).

1. temperatureto cool
2. washThe ethyl acetate layer is washed with brine
3. dry with materialdried over MgSO4
4. additionThe mixture of the title compound
5. customa small amount of impurity is used in the next reaction without additional purification