Related Products of 1904-31-0, A common heterocyclic compound, 1904-31-0, name is 1-Methyl-1H-pyrazol-3-amine, molecular formula is C4H7N3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.
Example E (0238) N-Hydroxy-4-(((1 -methyl-1 H-pyrazol-3-yl)(pyridin-2-yl)amino)methyl)benzamide (0239) (0240) 2-Bromopyridine (1 ) (1.0g, 6.3mmol), 1-methyl-1 H-pyrazol-3-amine (2) (0.79g, 8.2mmol), Xantphos (0.37g, 0.63mmol), and Cs2C03 (4.1g, 12.6mmol) were combined in dry 1 ,4-dioxane (15ml_). The reaction mixture was then degassed with N2(g), and placed under vacuum for 10min. Pd2(dba)3 (0.29g, 0.31 mmol) was added and the resulting reaction mixture was heated at 90¡ãC for 30h. It was then poured onto demineralised water (200ml_), and extracted with EtOAc (3 x 100ml_). The organic phases were combined, dried over Na2S04, filtered and subsequently concentrated in vacuo. The resulting residue was purified by flash chromatography with EtOAc/Hexane (1 : 1) to provide N-(1-methyl-1 H-pyrazol-3-yl)pyridin-2-amine (3) as a yellow solid (0.75g, 68percent). (0241) LCMS (ES): Found 175.2 [M+H]+.
The synthetic route of 1904-31-0 has been constantly updated, and we look forward to future research findings.