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HRID 1922200作成日:2026年10月25日

1,5-Dibromopentane → Ethyl 1-cyanocyclohexane-1-carboxylate

https://huagongshe.com/reaction/1922200

反応式

関与物質

役割名称HCID仕込み量
反応物1,5-DibromopentaneHCID 8100—
反応物Ethyl AcetateHCID 8857—
反応物Cesium carbonateHCID 10796—
反応物CyanoacetateHCID 1551036—
溶媒DimethylformamideHCID 6228—
生成物Ethyl 1-cyanocyclohexane-1-carboxylateHCID 1099765057%

反応条件

温度0 °C

反応手順

To a solution of cyanoacetate (1 eq) in DMF at 0° C. was slowly added cesium carbonate (2.5 eq), followed by the slow addition of 1,5-dibromopentane. This mixture was allowed to stir for 30 minutes at 0° C. and at room temperature for two hours. The crude reaction mixture was diluted with ethyl acetate and washed three times with water, dried with anhydrous sodium sulfate, filtered, and concentrated. The compound was clean enough to continue without purification. 57% yield. 1H NMR (300 MHz, CDCl3) δ 4.25 (q, 2H), 2.12-1.68 (m, 10H), 1.31 (t, 3H).

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US08173689B2
出典データセットuspto-grants-2012_05
ORD IDord-250348398b5f488c9c00aef0bbb2c6c4
出典メモuspto-grants-2012_05