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HRID 749484作成日:2026年10月25日

Sulfuric Acid → 2,4-Dichloro-5-(2-chloro-4,6-difluorophenylamino)benzoic acid

https://huagongshe.com/reaction/749484

反応式

関与物質

役割名称HCID仕込み量
反応物Sulfuric AcidHCID 1118—
反応物Ethyl 2,4-dichloro-5-(2-chloro-4,6-difluorophenylamino)benzoateHCID 69305912—
溶媒EthanolHCID 702—
生成物2,4-Dichloro-5-(2-chloro-4,6-difluorophenylamino)benzoic acidHCID 6879826789.7%

反応条件

温度90 °C

反応手順

120 mg (0.31 mmol) of ethyl 2,4-dichloro-5-(2-chloro-4,6-difluorophenylamino)benzoate were suspended in 6 ml of an ethanol/2 N sodium hydroxide solution mixture (1:1) and heated at 90° C. for 3 hours. After cooling to room temperature, the pH was adjusted to 2 with 2 N sulfuric acid, and the precipitate was filtered off with suction. 98 mg (88%) of the product were obtained.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US07402674B2
出典データセットuspto-grants-2008_07
ORD IDord-02347f89e7ff45a3bdaa4e3d85527075
出典メモuspto-grants-2008_07