Electric Literature of 3524-32-1, Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 3524-32-1, name is 5-Amino-1,3-dimethylpyrazole, This compound has unique chemical properties. The synthetic route is as follows.
Example i.27; Preparation of (2,5-DimethyI-2H-pyrazol-3-yl)-(4′-fluoro-biphenyI-4-yl)-amine (Compound 36).A 20-mL scintillation vial was charged with 4′-bromo-4-fluoro-biphenyl (251.1 mg, 1 mmol), 3-amino-2,5-dimethyl pyrazole (111.1 mg, 1 mmol), sodium tert-butoxide (134.5 mg, 1.4 mmol), tris(dibenzylideneacetone)dipalladium(0) (45.8 mg, 0.05 mmol), BINuAP (62.3 mg, 0.1 mmol) and toluene (2 mL) under nitrogen atmosphere. The reaction mixture was heated at 800C for 48 hours. It was then allowed to cool to room temperature, taken up in ether/ethyl acetate, filtered and concentrated. The crude material was subjected to column chromatography on silica gel (Biotage, eluent hexanes/ethyl acetate 70/30) to afford Compound 36 as a yellow solid. LCMS m/z (%) = 282 (M+H, 100). 5
The chemical industry reduces the impact on the environment during synthesis 5-Amino-1,3-dimethylpyrazole. I believe this compound will play a more active role in future production and life.