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P405
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NFPA 704
1
2
0
1-Methyl-4-pyrazole boronic acid pinacol ester C화학적 특성, 용도, 생산
화학적 성질
White to light yellow crystal powde
Synthesis
To the solution of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (0.40 g, 2.06 mmol) in THF (10 mL) was added NaH (0.1.00 g, 4.12 mmol) followed by methyl iodide (0.25 mL, 4.12 mmol) at 0° C and the reaction mixture was stirred at ambient temperature for 4 hr. The reaction was quenched with saturated NH4Cl solution (20 mL) and extracted with ethyl acetate (2 x 50 mL). The combined organic layers were washed with brine (20 mL), dried over sodium sulfate, and distilled under reduced pressure to obtain 1-Methyl-4-pyrazole boronic acid pinacol ester.
1-Methyl-4-pyrazole boronic acid pinacol ester 준비 용품 및 원자재
