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HRID 228607作成日:2026年10月24日

Ethanol → Benzoic acid, 2-hydroxy-4-methyl-, ethyl ester

https://huagongshe.com/ja/reaction/228607

反応式

関与物質

役割名称HCID仕込み量
反応物EthanolHCID 702—
反応物2-Hydroxy-p-toluic acidHCID 5788—
反応物1-Hydroxybenzotriazole hydrateHCID 2796029—
反応物Dimethylaminopropyl carbodiimide hydrochlorideHCID 21899179—
溶媒WaterHCID 962—
溶媒DimethylformamideHCID 6228—
生成物Benzoic acid, 2-hydroxy-4-methyl-, ethyl esterHCID 1301300949%

反応手順

4-Methylsalicylic acid (304 mg), 1-ethyl-3-(3-dimethylaminopropylcarbodiimide hydrochloride (420 mg), 1-hydroxybenzotriazole hydrate (337 mg), and ethanol (2 ml) were dissolved in N,N-dimethylformamide to prepare a solution which was then stirred at room temperature overnight. Water was added to the reaction solution, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was then washed with water and was dried over anhydrous sodium sulfate. The solvent was removed therefrom by distillation under the reduced pressure, and the residue was purified by column chromatography using acetone-hexane to give ethyl 4-methylsalicylate (175 mg, yield 49%).

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US07560558B2
出典データセットuspto-grants-2009_07
ORD IDord-c7d9c838d6fc4357bcd4712c71a591d2
出典メモuspto-grants-2009_07