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. 84547-61-5, name is (1-Methyl-1H-pyrazol-5-yl)methanol belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below. Quality Control of (1-Methyl-1H-pyrazol-5-yl)methanol
A solution of (1 -methyl- lH-pyrazol-5-yl)methanol (1.2 g, 10.71 mmol) in dichloromethane (25 mL) was treated with thionyl chloride (1.9 mL) at room temperature for 2 hours. Then the reaction was quenched by the addition of water (20 mL) and neutralized with saturated aqueous sodium carbonate. The organic layer was separated and the aqueous layer extracted with dichloromethane (3 x 20 mL). The combined organic layer was dried over by anhydrous sodium sulfate. The solids were filtered out and the filtrates were concentrated under reduced pressure to afford 5-(chloromethyl)-l -methyl-lH-pyrazole as light yellow oil (800 mg, 57 %). (ES, m/z): [M+H]+ 131.0 *H NMR (300 MHz, CDC13) delta 7.41 (d, 7 = 1.8 Hz, 1H), 6.27 (d, 7 = 1.8 Hz, 1H), 4.61 (s, 2H), 3.93 (s, 3H)
The synthetic route of 84547-61-5 has been constantly updated, and we look forward to future research findings.