反应详情

温度

80 °C

Thionyl chloride (4 ml) was added to 1,4-dimethyl-1H-pyrazole-3-carboxylic acid (0.5 g) and the reaction was heated at 80° C. for 2 h. Further thionyl chloride (2 ml) was added and the reaction was heated at 80° C. for 1 h. The reaction was evaporated, then azeotroped with toluene to give title compound, 511 mg.

1. temperaturethe reaction was heated at 80° C. for 1 h
2. customThe reaction was evaporated
3. customazeotroped with toluene