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. 943541-20-6, name is 3-Chloro-6-(1-methyl-1H-pyrazol-4-yl)pyridazine belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Product Details of 943541-20-6
1.4 A suspension of 3.89 g (20.0 mmol) of 3-chloro-6-(1-methyl-1H-pyrazol-4-yl)pyridazine and 4.58 g (20.0 mmol) of (3-bromophenyl)acetohydrazide in 40 ml of 1-butanol is heated at 130 C. for 18 hours. The reaction mixture is cooled and partitioned between ethyl acetate and saturated sodium hydrogencarbonate solution. The organic phase is dried over sodium sulfate and evaporated. The residue is chromatographed on a silica-gel column with dichloromethane /tert-butyl methyl ether /methanol as eluent: 3-(3-bromobenzyl)-6-(1-methyl-1H-pyrazol-4-yl)-1,2,4-triazolo-[4,3-b]pyridazine as beige crystals; ESI 369, 371.
The synthetic route of 943541-20-6 has been constantly updated, and we look forward to future research findings.
Reference:
Patent; MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG; US2011/92498; (2011); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics