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HRID 2418949作成日:2026年10月26日

3-(Ethoxymethylene)pentane-2,4-dione → HCID 178467925、化合物

https://huagongshe.com/reaction/2418949

反応式

関与物質

役割名称HCID仕込み量
反応物3-(Ethoxymethylene)pentane-2,4-dioneHCID 240418—
反応物3-Amino-2,5,6-trichlorobenzoic acidHCID 19834569—
溶媒TolueneHCID 1140—
生成物HCID 178467925HCID 178467925741.6%

反応条件

温度10 °C

反応手順

46.8 g (0.3 mole) of methyl 1-methylcarbonyl-2-ethoxyvinyl ketone were added dropwise to a suspension of 48.1 g (0.02 mole) of 3-amino-2,5,6-trichlorobenzoic acid in 100 ml of toluene. The mixture was heated for 2 hours to 80° C and was then cooled to 10° C, and the precipitate was filtered off. After digesting with acetonitrile, 52 g (74% of theory) of 3-[2,2-bis-(methylcarbonyl)-vinylamino]-2,5,6-trichlorobenzoic acid were obtained in the form of colourless crystals of melting point 242°-244° C.

情報源と証拠

DOI10.6084/m9.figshare.5104873.v1
特許番号US04104049
出典データセットuspto-grants-1978_08
ORD IDord-d46c7e3906b448a3880bd5b79d6480f2
出典メモuspto-grants-1978_08