Potassium Carbonate → 7-Methoxy-2H-1,4-benzoxazin-3(4H)-one
반응식
Cl[CH2:2][C:3]([NH:5][C:6]1[CH:11]=[CH:10][C:9]([O:12][CH3:13])=[CH:8][C:7]=1[OH:14])=[O:4].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[CH3:13][O:12][C:9]1[CH:10]=[CH:11][C:6]2[NH:5][C:3](=[O:4])[CH2:2][O:14][C:7]=2[CH:8]=1참가 물질
4
실험 절차
2-Chloro-N-(2-hydroxy-4-methoxy-phenyl)-acetamide (390.0 g, 0.18 mol) and powdered potassium carbonate (27.6 g, 0.2 mol) were added to 1000 mL acetone, and the reaction mixture was refluxed under nitrogen for eight hours. The reaction mixture was cooled, solids were removed by filtration, and the liquid was concentrated under reduced pressure to give 32.56 g of crude 7-Methoxy-4H-benzo[1,4]oxazin-3-one. (M+H)=180.
후처리
- temperaturethe reaction mixture was refluxed under nitrogen for eight hours
- temperatureThe reaction mixture was cooled
- customsolids were removed by filtration
- concentrationthe liquid was concentrated under reduced pressure
출처 및 근거
- ORD 기록
- ord-9e4b8690ae714cea8a36d70af5f9d9c2
- 출처 데이터셋
- uspto-grants-2013_09
- 특허 번호
- US08524725B2
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