Adding a certain compound to certain chemical reactions, such as: 92-43-3, name is 1-Phenyl-3-pyrazolidinone, belongs to pyrazoles-derivatives compound, can increase the reaction rate and produce products with better performance than those obtained under traditional synthetic methods. Here is a downstream synthesis route of the compound 92-43-3, Computed Properties of C9H10N2O
1-Phenylpyrrolidin-3-one (82.99mmoM.0eq)Dissolved with 5% aqueous sodium hydroxide solution,Add ferric chloride hexahydrate (16.60 mmol, 0.2 eq), and pass the system to oxygen and keep the temperature at 80 C. After the reaction is completed, add water to the reaction solution to quench the reaction, and adjust RhoEta=1~2 with hydrochloric acid. The mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate.Concentrated under reduced pressure, and the residue was purified by column chromatography (eluent: PE: EpsilonAlpha = 2:1)The pale yellow solid product 1-phenyl-1H-pyrazol-3-ol (1.46 g, yield 11%)
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1-Phenyl-3-pyrazolidinone, and friends who are interested can also refer to it.
Reference:
Patent; Shanghai Taihe International Trade Co., Ltd.; Du Yonglei; Lv Liang; Li Hongwei; Liu Shiqin; Liu Jiyong; Hou Shuang; Ma Wen; (36 pag.)CN108503587; (2018); A;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics