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HRID 58061作成日:2026年10月26日

1,2-Dichloroethane → 4-bromo-1,3-dimethyl-1H-pyrazole-5-carboxamide

https://huagongshe.com/reaction/58061

反応式

関与物質

役割名称HCID仕込み量
反応物1,2-DichloroethaneHCID 11—
反応物Ammonium ChlorideHCID 25517—
反応物1-HydroxybenzotriazoleHCID 75771—
反応物DiisopropylethylamineHCID 81531—
反応物4-bromo-1,3-dimethyl-1H-pyrazole-5-carboxylic acidHCID 2779833—
溶媒DimethylformamideHCID 6228—
溶媒Ethyl AcetateHCID 8857—
生成物4-bromo-1,3-dimethyl-1H-pyrazole-5-carboxamideHCID 4766142—

反応手順

To 4-bromo-1,3-dimethyl-1H-pyrazole-5-carboxylic acid (0.3 g, 1.370 mmol) in DMF (5 mL) were added ammonium chloride (0.293 g, 5.48 mmol), HOBt (0.222 g, 1.644 mmol), and EDC (0.368 g, 1.917 mmol), followed by N-ethyl-N-isopropylpropan-2-amine (1.193 mL, 6.85 mmol). The reaction mixture was stirred for 18 hours at room temperature. The reaction mixture was subsequently diluted with EtOAc, washed with brine, dried over Na2SO4, and concentrated to give the title compound, which was used without further purification (0.28 g).

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US09434743B2
出典データセットuspto-grants-2016_09
ORD IDord-cc234f99af78493bbb90bc9a27ab3330
出典メモuspto-grants-2016_09