2-Aminophenol → HCID 22145448、化合物
反応式
Cl.CN([CH:5]([CH3:15])[C:6]([C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([Cl:14])[CH:9]=1)=[O:7])C.[NH2:16][C:17]1[CH:22]=[CH:21][CH:20]=[CH:19][C:18]=1[OH:23]>C(O)C>[ClH:14].[OH:23][C:18]1[CH:19]=[CH:20][CH:21]=[CH:22][C:17]=1[NH:16][CH2:15][CH2:5][C:6]([C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([Cl:14])[CH:9]=1)=[O:7]参加物
実験手順
Dimethylamino-m-chloropropiophenone hydrochloride (74.9 g, 0.30 mol) was dissolved in 50% aqueous ethanol (700 ml) at reflux. 2-Aminophenol (32.9 g, 0.30 mol) was then added and the resulting red solution was refluxed for a further 2 hours. The reaction mixture was allowed to cool to room temperature and then extracted twice with ethyl acetate (2×100 ml). Note that brine was also added at this point to allow the two layers to separate effectively). The organic extracts were combined and an excess of concentrated hydrochloric acid (47 ml) was added. The solution was concentrated in vacuo and then allowed to cool. The precipitate that formed was filtered of, washed with diethyl ether and dried in vacuo to yield a cream powder (38.1 g, 40%).
後処理
- temperatureat reflux
- temperaturethe resulting red solution was refluxed for a further 2 hours
- extractionextracted twice with ethyl acetate (2×100 ml)
- additionwas also added at this point
- customto separate effectively)
- additionan excess of concentrated hydrochloric acid (47 ml) was added
- concentrationThe solution was concentrated in vacuo
- temperatureto cool
- customThe precipitate that formed
- filtrationwas filtered of,
- washwashed with diethyl ether
- customdried in vacuo
出典と根拠
- ORDレコード
- ord-ef166bc45eec4d449b71bd9ae329f07e
- 出典データセット
- uspto-grants-2006_05
- 特許番号
- US07045624B2
反応ノート
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