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HRID 38237作成日:2026年10月25日

Water → 1-(4-methoxybenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

https://huagongshe.com/reaction/38237

反応式

関与物質

役割名称HCID仕込み量
反応物WaterHCID 962—
反応物Potassium CarbonateHCID 11430—
反応物4-Methyloxybenzyl chlorideHCID 69993—
反応物4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 2774010—
溶媒AcetonitrileHCID 6342—
生成物1-(4-methoxybenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 5344021391%

反応条件

温度80 °C

反応手順

According to Scheme 13 Step 1: A suspension of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (7.38 mmol, 1.43 g), 1-(chloromethyl)-4-methoxybenzene (7.38 mmol, 1.00 mL) and K2CO3 (7.38 mmol, 1.02 g) in acetonitrile (10 mL) was heated at 80° C. for 5 hours. Water was added and the aqueous phase was extracted with DCM. The organic phase was dried over Na2SO4, was filtered and was concentrated under reduced pressure to afford 1-(4-methoxybenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (6.68 mmol, 2.10 g, 91%) as a yellow oil.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US08524718B2
出典データセットuspto-grants-2013_09
ORD IDord-9f37a4b9f51f466a9179e8405e328ece
出典メモuspto-grants-2013_09