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HRID 34667作成日:2026年10月25日

Hydrochloric Acid → 4-Carboxy-2-carboxyethylthio-1,3-thiazole

https://huagongshe.com/reaction/34667

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2-Bromopropionic acidHCID 11729—
反応物Sodium HydroxideHCID 14798—
反応物HCID 178470113HCID 178470113—
溶媒WaterHCID 962—
生成物4-Carboxy-2-carboxyethylthio-1,3-thiazoleHCID 14415208—

反応条件

温度60 °C

反応手順

6.9 g of bromopropionic acid were dissolved in 100 ml of water, and the pH was adjusted to 7 with 1N NaOH. This solution was added dropwise to a suspension of 7.5 g of 4-ethoxycarbonyl-2-mercapto-1,3-thiazole in 75 ml of H2O. The pH was adjusted to 8-10 with 2N NaOH, and the mixture was stirred at room temperature for 4 h and at 60° C. for 2 h. The pH was maintained between 8 and 10. While cooling in ice, the mixture was acidified to pH 1 with 2N HCl, and the product was filtered off.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US04762848
出典データセットuspto-grants-1988_08
ORD IDord-437e342210694b3fa36739d83cf07047
出典メモuspto-grants-1988_08