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HRID 48作成日:2026年10月23日

1-Acetylpiperazine → 1-[4-(4-Methoxy-3-nitro-phenyl)-piperazin-1-yl]ethanone

https://huagongshe.com/ja/reaction/48

反応式

関与物質

役割名称HCID仕込み量
反応物1-AcetylpiperazineHCID 83795—
反応物4-Bromo-2-nitroanisoleHCID 118533—
試薬Cesium carbonateHCID 10796—
触媒1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 636044—
触媒Palladium (II) acetateHCID 4144353—
溶媒1,4-DioxaneHCID 31275—
生成物1-[4-(4-Methoxy-3-nitro-phenyl)-piperazin-1-yl]ethanoneHCID 582357111.22%

反応条件

温度120 °C

反応手順

4-bromo-1-methoxy-2-nitrobenzene (1.5 g, 6.46 mmol), 1-(piperazin-1-yl)ethanone (0.829 g, 6.46 mmol), CESIUM CARBONATE (4.21 g, 12.93 mmol), XANTPHOS (0.449 g, 0.78 mmol) and PdOAc2 (0.116 g, 0.52 mmol) were suspended in dioxane (20 ml) and sealed into a microwave tube. The reaction was heated to 120 °C for 90 minutes in the microwave reactor and cooled to RT. The reaction mixture was filtered through celite with ethyl acetate (50 mL). The filtrate was evaporated to dryness. The crude product was purified by flash silica chromatography in EtOAc. Pure fractions were evaporated to dryness to afford 1-(4-(4-methoxy-3-nitrophenyl)piperazin-1-yl)ethanone (0.022 g, 1.218 %) as a brown solid.

情報源と証拠

出典データセット750 AstraZeneca ELN dataset
ORD IDord-56a1dc90e93f4e37a4c4dceba5d45c4e
出典メモ750 AstraZeneca ELN dataset