반응식
[CH3:1][N:2]1[CH2:7][CH2:6][N:5]([C:8]2[CH:13]=[CH:12][CH:11]=[C:10]([N+:14]([O-:16])=[O:15])[CH:9]=2)[CH2:4][CH2:3]1.[Br:17]Br>C(O)(=O)C>[Br:17][C:11]1[CH:12]=[CH:13][C:8]([N:5]2[CH2:6][CH2:7][N:2]([CH3:1])[CH2:3][CH2:4]2)=[CH:9][C:10]=1[N+:14]([O-:16])=[O:15]참가 물질
4
실험 절차
A solution of 1-methyl-4-(3-nitrophenyl)piperazine (EP0533267A) (1.0 g; 4.5 mmol) in glacial acetic acid (25 ml) was treated with bromine (0.23 ml; 1 equivalent). The reaction mixture was stirred at 75° overnight, then cooled, filtered, and the yellow sticky solid was partitioned between potassium carbonate (aq) and 2% methanol in dichloromethane. The organic phase was dried (Na2SO4) and evaporated under reduced pressure to leave the title compound (D26) as a viscous orange oil (928 mg, 68%) MH+=300/302.
후처리
- temperaturecooled
- filtrationfiltered
- customthe yellow sticky solid was partitioned between potassium carbonate (aq) and 2% methanol in dichloromethane
- dry with materialThe organic phase was dried (Na2SO4)
- customevaporated under reduced pressure
출처 및 근거
- ORD 기록
- ord-04855d2480d14a2993f4accedabd3821
- 출처 데이터셋
- uspto-grants-2003_07
- 특허 번호
- US06599904B2
연결된 노트
불러오는 중…