Synthetic Route of 69843-13-6, 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. 69843-13-6, name is 1-Methyl-1H-pyrazol-4-amine belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.
Example 34 6-[3-(4-Chloro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-N-(l-methyl-lH-pyrazol-4-yl)- nicotinamide To a solution of 6-[3-(4-chloro-phenyl)-5-methyl-isoxazol-4-ylmethoxy]-nicotinic acid (224 mg, 0.65 mmol) and 1 -methyl- lH-pyrazol-4-ylamine (0.65 mmol) in THF (6 mL) at 0 C were added 1-hydroxybenzotriazole hydrate ( 100.8 mg, 0.65 mmol), N-ethyldiisopropylamine (281.7 mu?, 1.613 mmol) and N-(3-dimethylaminopropy)-N -ethylcarbodiimidazole hydrochloride (126.2 mg, 0.65 mmol). The resulting reaction mixture was stirred overnight at room temperature. Concentration and purification by chromatography (Si02, heptane:ethyl acetate = 3: 1 to 1:4) afforded the title compound (201 mg, 73%) which was obtained as a white solid. MS: m/e = 424.2 [M+H]+.
The synthetic route of 1-Methyl-1H-pyrazol-4-amine has been constantly updated, and we look forward to future research findings.
Reference:
Patent; F. HOFFMANN-LA ROCHE AG; DOTT, Pascal; HANLON, Steven Paul; HILDBRAND, Stefan; IDING, Hans; THOMAS, Andrew; WALDMEIER, Pius; WO2013/57123; (2013); A1;,
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics