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HRID 7356作成日:2026年10月23日

Water → Methyl 4-(cyclopropylidenemethyl)benzoate

https://huagongshe.com/ja/reaction/7356

反応式

関与物質

役割名称HCID仕込み量
反応物WaterHCID 962—
反応物Methyl 4-FormylbenzoateHCID 15294—
反応物Sodium hydrideHCID 24758—
反応物Cyclopropyltriphenylphosphonium bromideHCID 2723931—
溶媒TetrahydrofuranHCID 8028—
生成物Methyl 4-(cyclopropylidenemethyl)benzoateHCID 1160081269.8%

反応条件

温度70 °C

反応手順

To a suspension of sodium hydride (60%, 0.27 g) in tetrahydrofuran (40 mL) was added cyclopropyltriphenylphosphonium bromide (2.6 g), and the mixture was stirred at 70° C. for 2 hours. To the reaction mixture was added methyl terephthalaldehydate (1.0 g), and the mixture was stirred at 70° C. for 7 days. Water was added to the reaction mixture, and the mixture was extracted with diethyl ether. The organic layer was washed with water and brine, and dried over anhydrous magnesium sulfate, and the solvent was removed under reduced pressure. The residue was purified by column chromatography on silica gel (eluent: hexane/dichloromethane=1/1) to give methyl 4-(cyclopropylidenemethyl)benzoate (0.80 g).

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US07087579B2
出典データセットuspto-grants-2006_08
ORD IDord-b693a864a5f84c91904645550a8b9dac
出典メモuspto-grants-2006_08