2166-31-6, 6-Phenylpyridazin-3(2H)-one is a pyridazine compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated
Addition of 68.9 g of 6-phenyl-3-pyridazinone g (0.4 mol) in a 500 ml four-neck flask, prepared in Example 1Modified ZSM-5 molecular sieve 7 g, 413.4 g of phosphorus oxychloride and 166.5 g of phosphorus pentachloride (0.8 mol), and then heated to 90C, and kept warmAfter half an hour of reaction, the temperature was raised to 110C and the reaction was refluxed for 4 hours. The reaction was completed. HPLC was used to determine the area normalized to give 3-phenyl-4-one.The ratio of chloropyridazine, 3-phenyl-4-6-dichloropyridazine, 3-phenyl-4-5-dichloropyridazine was 0.5:98.4:1.1;The reaction solution was distilled under reduced pressure to remove phosphorus oxychloride, and the temperature under vacuum distillation was 120C. The degree of vacuum was -0.098 MPa;After being bundled, it is cooled to room temperature, then 137.8g of toluene is added, stirred and heated to recrystallize, the Buchner funnel is filtered, and the wet product is blownThe box was dried at 80C for 8 hours to obtain 86.5 g of a white solid-like 3-phenyl-4-6-dichloropyridazine product (HPLC: 99.7%; Yield:95.3%).
2166-31-6, As the paragraph descriping shows that 2166-31-6 is playing an increasingly important role.
Reference£º
Patent; Changzhou Woteng Chemical Technology Co., Ltd.; Wan Zhibing; Wang Zhichao; Sun Kezhou; Liu Rong; (5 pag.)CN106831600; (2017); A;,
Pyridazine – Wikipedia
Pyridazine | C4H4N2 – PubChem