2-[(2-Cyclohexylphenoxy)methyl]oxirane → 1-{4-[3-(o-Cyclohexylphenoxy)-2-hydroxypropylamino]-phenyl}-2-imidazolidinone
반응식
[CH:1]1([C:7]2[CH:17]=[CH:16][CH:15]=[CH:14][C:8]=2[O:9][CH2:10][CH:11]2[CH2:13][O:12]2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.[NH2:18][C:19]1[CH:24]=[CH:23][C:22]([N:25]2[CH2:29][CH2:28][NH:27][C:26]2=[O:30])=[CH:21][CH:20]=1>C(O)(C)C>[CH:1]1([C:7]2[CH:17]=[CH:16][CH:15]=[CH:14][C:8]=2[O:9][CH2:10][CH:11]([OH:12])[CH2:13][NH:18][C:19]2[CH:20]=[CH:21][C:22]([N:25]3[CH2:29][CH2:28][NH:27][C:26]3=[O:30])=[CH:23][CH:24]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1참가 물질
실험 절차
A solution of 3.24 g o-(cyclohexyl)-phenoxymethyloxirane (see Example 3) and 2.65 g of 1-(4-aminophenyl)-2-imidazolidinone in 60 ml isopropanol is stirred at reflux for 18 hours. The reaction mixture is filtered and the filtrate concentrated in vacuo. The residue is dissolved in 50 ml ethyl acetate and acidified to pH=1 with a solution of hydrogen chloride gas in ethyl acetate. The supernatant is decanted from the dark gum that forms and the residue is treated with ethyl acetate and 5% aqueous sodium carbonate. The ethyl acetate solution is separated, washed with 10% aqueous sodium carbonate and twice with water. After drying over anhydrous sodium sulfate the solution is treated with charcoal, filtered and concentrated in vacuo leaving a dark viscous gum. The gum is chromatographed by passing through a column of silica gel using methylene chloride/methyl alcohol as eluent to yield 1-{4-[3-(o-cyclohexylphenoxy)-2-hydroxypropylamino]-phenyl}-2-imidazolidinone, which is used directly in the next step.
후처리
- temperatureat reflux for 18 hours
- filtrationThe reaction mixture is filtered
- concentrationthe filtrate concentrated in vacuo
- dissolutionThe residue is dissolved in 50 ml ethyl acetate
- customThe supernatant is decanted from the dark gum that
- additionthe residue is treated with ethyl acetate and 5% aqueous sodium carbonate
- customThe ethyl acetate solution is separated
- washwashed with 10% aqueous sodium carbonate and twice with water
- dry with materialAfter drying over anhydrous sodium sulfate the solution
- additionis treated with charcoal
- filtrationfiltered
- concentrationconcentrated in vacuo
- customleaving a dark viscous gum
- customThe gum is chromatographed
출처 및 근거
- ORD 기록
- ord-81a8ed81ebd545dba27c7ad346b0b734
- 출처 데이터셋
- uspto-grants-1987_01
- 특허 번호
- US04634713
반응 노트
불러오는 중…