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HRID 1009151作成日:2026年10月25日

Hydrochloric Acid → Diethyl 2-(1-(4-methoxyphenyl)-2-methylpropan-2-yl)malonate

https://huagongshe.com/reaction/1009151

反応式

関与物質

役割名称HCID仕込み量
反応物Hydrochloric AcidHCID 313—
反応物Diethyl isopropylidenemalonateHCID 81255—
反応物HCID 178490607HCID 178490607—
溶媒Diethyl EtherHCID 3283—
生成物Diethyl 2-(1-(4-methoxyphenyl)-2-methylpropan-2-yl)malonateHCID 67304572—

反応条件

温度-78 °C

反応手順

Diethylisopropylidenemalonate (6.686 ml, 34.09 mmol) was dissolved in 300 ml Et2O and cooled to −78° C. 4-Methoxybenzylmagnesium chloride (150.000 ml, 37.50 mmol) was added and stirring was continued for 5 h. The temperature was warmed up to 0° C. The reaction was hydrolyzed with 0.5 M HCl and extracted 3×EtOAc. Glass col. Chromatography (10-50% EtOAc in Hex.) provided diethyl 2-(1-(4-methoxyphenyl)-2-methylpropan-2-yl)malonate. MS m/z: 323.1 (M+1).

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US07973047B2
出典データセットuspto-grants-2011_07
ORD IDord-98206daa36f142a3baccedf54bbdc0d0
出典メモuspto-grants-2011_07