Reference of 1211519-08-2, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 1211519-08-2, name is 3-Chloro-6-(1H-pyrazol-4-yl)pyridazine belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.
3 -Chloro-6-(l -methyl- lH-p razol-4-yl)pyridazine To a 100 mL flask is added 3-chloro-6-(lH-pyrazol-4-yl) pyridazine (1.7 g, 9.4 mmol) , potassium ierf-butoxide (1.23 g, 10.4 mmol), 18-crown-6 (250 mg, 0.94 mmol), and ether (40 mL). The reaction mixture is stirred at room temperature for 20 min and then cooled to 0 C, followed by addition of iodomethane dropwise (1.56 g, 10.9 mmol). The mixture is allowed to warm up to room temperature and stirred overnight. Then ice-water (30 mL) is added and the mixture is extracted with dichloromethane (3 X 50 mL). The combined organic phases are dried over anhydrous sodium sulfate, filtered, and concentrated to give the titled compound as a brown solid (1.7 g, 93% yield). ( MS: [M+l] 195)
The synthetic route of 3-Chloro-6-(1H-pyrazol-4-yl)pyridazine has been constantly updated, and we look forward to future research findings.