Ammonium Hydroxide → 3-(p-Chlorophenyl)-2-[2-(diethylamino)ethyl]isoindole-1-carboxylic acid ethyl ester hydrochloride
反応式
[CH2:1]([N:3]([CH2:7][CH3:8])[CH2:4][CH2:5][NH2:6])[CH3:2].[CH2:9]([O:11][C:12](=[O:30])[C:13]([C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][C:16]=1[C:21](=O)[C:22]1[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][CH:23]=1)=O)[CH3:10].[OH-].[NH4+]>C(O)=O>[ClH:28].[CH2:9]([O:11][C:12]([C:13]1[N:6]([CH2:5][CH2:4][N:3]([CH2:7][CH3:8])[CH2:1][CH3:2])[C:21]([C:22]2[CH:27]=[CH:26][C:25]([Cl:28])=[CH:24][CH:23]=2)=[C:16]2[C:15]=1[CH:20]=[CH:19][CH:18]=[CH:17]2)=[O:30])[CH3:10]参加物
実験手順
A mixture of 0.83 g. of formic acid and 1.05 g. of 2-diethylaminoethylamine is treated at room temperature with 0.95 g. of [o-(p-chlorobenzoyl)phenyl]glyoxylic acid ethyl ester and subsequently stirred at 140° C. for 2 hours. After cooling, the obtained solution is made alkaline with 2-N ammonium hydroxide with addition of ice and extracted with ether. The extract, shielded from daylight, is washed with water, dried over sodium sulfate, concentrated and chromatographed on 70 g. of silica gel with ether as the eluant. The homogeneous fractions are combined, concentrated to a volume of 15-20 ml. and treated with ethereal hydrochloric acid. The crystallized hydrochloride is removed by filtration and washed with ether, and there is obtained 3-(p-chlorophenyl)-2-[2-(diethylamino)ethyl]isoindole-1-carboxylic acid ethyl ester hydrochloride; melting point 202°-204° C. (decomposition). Recrystallization from methylene chloride/ether does not increase the melting point.
後処理
- additionA mixture of 0.83 g
- temperatureAfter cooling
- additionwith addition of ice
- extractionextracted with ether
- washis washed with water
- dry with materialdried over sodium sulfate
- concentrationconcentrated
- customchromatographed on 70 g
- concentrationconcentrated to a volume of 15-20 ml
- additionand treated with ethereal hydrochloric acid
- customThe crystallized hydrochloride is removed by filtration
- washwashed with ether
出典と根拠
- ORDレコード
- ord-d479646bdab447c1bd60acae5e438cff
- 出典データセット
- uspto-grants-1976_12
- 特許番号
- US03996374
反応ノート
読み込み中…