반응식
[Cl:1][C:2]1[CH:12]=[CH:11][CH:10]=[CH:9][C:3]=1[C:4]([CH2:6][C:7]#[N:8])=O.O.[NH2:14][NH2:15]>C(O)C>[Cl:1][C:2]1[CH:12]=[CH:11][CH:10]=[CH:9][C:3]=1[C:4]1[CH:6]=[C:7]([NH2:8])[NH:14][N:15]=1참가 물질
4
실험 절차
A solution of 2-chlorobenzoylacetonitrile (15.9 g, 89 mmol) and hydrazine hydrate (8.9 g, 0.18 mol) in ethanol (2 ml) was heated at reflux for 22 hr. After cooling to room temperature, the reaction was concentrated, in vacuo. The residue was dissolved in ethyl acetate, washed with water and brine, dried (MgSO4), and concentrated, in vacuo, to a brown oil. Flash chromatography using 10% ethyl acetate in methylene chloride, changing to 5% methanol in methylene chloride as eluant afforded title product I-1A-1a (17.3 g, quantitative): +ESI MS (M+1) 194.2; 1H NMR (400 MHz, CD3OD) δ 7.60–7.25 (m, 4H), 5.99 (br s, 1H).
후처리
- temperatureat reflux for 22 hr
- concentrationthe reaction was concentrated, in vacuo
- dissolutionThe residue was dissolved in ethyl acetate
- washwashed with water and brine
- dry with materialdried (MgSO4)
- concentrationconcentrated, in vacuo, to a brown oil
출처 및 근거
- ORD 기록
- ord-a23ee3c3ff084847b808711a4f6189ce
- 출처 데이터셋
- uspto-grants-2007_02
- 특허 번호
- US07176210B2
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