Adding a certain compound to certain chemical reactions, such as: 1192-21-8, name is 1-Methyl-1H-pyrazol-5-amine, 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 1192-21-8, Computed Properties of C4H7N3
Step ()N-(2-(5-chloro-2-(l -methyl- lH-pyrazol-5-ylamino)pyrimidin-4-ylamino)-5- methoxyphenyl)methanesulfonamideA mixture of N-(2-(2,5-dichloropyrimidin-4-ylamino)-5-methoxyphenyl) methane sulfonamide (2 g, 5.5 mmol, see Example 1 steps (i) and (ii)), l-methyl-lH-pyrazol-5-amine (536 mg, 5.5 mmol), palladium acetate (61 mg, 2.8 mmol), Xantphos (159 mg, 2.7 mmol) and cesium carbonate (1.79 g, 5.5 mmol) in 1,4-dioxane (40 mL) was stirred at 1600C for 2 h in a microwave reactor then concentrated in vacuo. The residue was partitioned between DCM and water and the aqueous layer was extracted three times with DCM. The combined organic layer was washed with brine (5 mL), dried (MgSO4), concentrated in vacuo and purified by flash chromatography (silica gel, 0-5% methanol-DCM with 0.1% triethylamine) to afford the title compound (504 mg, 22%).
At the same time, in my other blogs, there are other synthetic methods of this type of compound, 1-Methyl-1H-pyrazol-5-amine, and friends who are interested can also refer to it.