HRID441859
反应详情
EQUATION
反应方程式
REACTANTS
反应物
PRODUCTS
生成物
AUXILIARIES
试剂、催化剂与溶剂
PROCEDURE
实验过程
50.8 g of ethyl p-chlorobenzoylacetate (produced for example from p-chloroacetophenone, diethyl carbonate and sodium hydride with a yield of 72 %) 29 g of phenylhydrazine, 5 ml of glacial acetic acid and 150 ml of ethanol are heated in a nitrogen atmosphere for 1 hour at boiling point. After cooling in an ice bath 3-p-chlorophenyl-1-phenyl-2-pyrazoline-5-one is obtained with a yield of 84 %; F 160.5°-161.5°.
WORKUP
后处理
- temperatureare heated in a nitrogen atmosphere for 1 hour
- customis obtained with a yield of 84 %
- customF 160.5°-161.5°