Isopropanol → HCID 19603840、化合物
反応式
[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([N+:19]([O-:21])=[O:20])=[C:13]([CH2:15][C:16]([OH:18])=[O:17])[CH:14]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:22][CH:23](O)[CH3:24].Cl.C(N=C=NCCCN(C)C)C>C(Cl)Cl.CN(C)C1C=CN=CC=1>[CH2:1]([O:8][C:9]1[CH:10]=[CH:11][C:12]([N+:19]([O-:21])=[O:20])=[C:13]([CH2:15][C:16]([O:18][CH:23]([CH3:24])[CH3:22])=[O:17])[CH:14]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1参加物
実験手順
To a solution of 5-benzyloxy-2-nitrophenylacetic acid (25.1 g) in methylene chloride (250 ml) were added in turn 2-propanol (27 ml), 4-dimethylaminopyridine (1.07 and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (18.4 g) and the resulting mixture was stirred at room temperature for one hour and then allowed to stand overnight. After the solvent was distilled off under reduced pressure, the resulting residue was diluted with ethyl acetate, washed subsequently with 1N hydrochloric acid and saturated saline. The organic layer was dried over magnesium sulfate and distilled off under reduced pressure. The dark yellow oily substance thus obtained (29.7 g) was purified by a silica gel column chromatography (hexane:ethyl acetate=4:1) to give the title compound (22.5 g).
後処理
- waitto stand overnight
- distillationAfter the solvent was distilled off under reduced pressure
- additionthe resulting residue was diluted with ethyl acetate
- washwashed subsequently with 1N hydrochloric acid and saturated saline
- dry with materialThe organic layer was dried over magnesium sulfate
- distillationdistilled off under reduced pressure
- customThe dark yellow oily substance thus obtained (29.7 g)
- customwas purified by a silica gel column chromatography (hexane:ethyl acetate=4:1)
出典と根拠
- ORDレコード
- ord-2e53e0f9c9804bdea1c91b5f03f68570
- 出典データセット
- uspto-grants-1997_11
- 特許番号
- US05684003
反応ノート
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