Triethylamine → HCID 178468266、化合物
反応式
[Cl:1][C:2]1[CH:12]=[CH:11][CH:10]=[CH:9][C:3]=1[C:4](=[NH:8])[O:5][CH2:6][CH3:7].[CH2:13](N(CC)CC)C.[Cl:20]/[C:21](/[CH3:27])=[C:22](\C)/[C:23](Cl)=[O:24]>C1(C)C=CC=CC=1>[Cl:20][C:21]([CH3:27])=[C:22](/[N:8]=[C:4](/[O:5][CH2:6][CH3:7])\[C:3]1[CH:9]=[CH:10][CH:11]=[CH:12][C:2]=1[Cl:1])[C:23]([CH3:13])=[O:24]参加物
実験手順
Ethyl 2-chlorobenzimidate (2.80 g) and triethylamine (1.70 g) are dissolved in toluene (50 ml), to which is added dropwise (E)-3-chloro-2-methyl-2-butenoyl chloride at 5° C.-10° C. with stirring, and the stirring is continued at room temperature for 4 hours after the completion of the addition. After the completion of the reaction, the reaction mixture is added with toluene (150 ml), washed with a saline solution, dried on anhydrous magnesium sulfate and concentrated under a reduced pressure. The concentrate is purified through a silica gel column chromatography (Wakogel C-200: made by Wako Junyaku Kabushiki Kaisha) using a mixed solution of hexane-ethyl acetate (10:1) as a developing medium to obtain an oily ethyl (E)-N-(3-chloro-1-methyl-2-butenoyl)-2-chlorobenzimidate (2.37 g).
後処理
- additionafter the completion of the addition
- customAfter the completion of the reaction
- washwashed with a saline solution
- dry with materialdried on anhydrous magnesium sulfate
- concentrationconcentrated under a reduced pressure
- customThe concentrate is purified through a silica gel column chromatography (Wakogel C-200: made by Wako Junyaku Kabushiki Kaisha)
出典と根拠
- ORDレコード
- ord-93dd602c15d746718811172b55d0f1cc
- 出典データセット
- uspto-grants-1995_11
- 特許番号
- US05466705
反応ノート
読み込み中…