Cesium carbonate → 2-(2-Methoxy-4-nitrophenoxy)pyrimidine

HRID 38244

반응식

HRID 38244 반응식
Br[C:2]1[N:7]=[CH:6][CH:5]=[CH:4][N:3]=1.[CH3:8][O:9][C:10]1[CH:15]=[C:14]([N+:16]([O-:18])=[O:17])[CH:13]=[CH:12][C:11]=1[OH:19].C([O-])([O-])=O.[Cs+].[Cs+]>CN(C=O)C>[CH3:8][O:9][C:10]1[CH:15]=[C:14]([N+:16]([O-:18])=[O:17])[CH:13]=[CH:12][C:11]=1[O:19][C:2]1[N:7]=[CH:6][CH:5]=[CH:4][N:3]=1

참가 물질

5

반응물 3

HCID 10796Cesium carbonateHCID 767382-Methoxy-4-nitrophenolHCID 783452-Bromopyrimidine

생성물 1

HCID 674400092-(2-Methoxy-4-nitrophenoxy)pyrimidine수율 78%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

반응 조건

온도
80 °C

실험 절차

According to Scheme 3 Step 1 Method B: 2-Bromopyrimidine (1.26 mmol, 211 mg) was added to a suspension of 2-methoxy-4-nitrophenol (1.15 mmol, 200 mg), Cs2CO3 (1.41 mmol, 460 mg) in DMF (3 mL). The reaction mixture was stirred at 80° C. for 3 days. The reaction mixture was quenched with water. The aqueous phase was extracted with AcOEt. The organic phase was washed with brine, was dried over MgSO4, was filtered and was concentrated under reduced pressure. The crude product was washed with a solution of NaOH 3M and dried to obtain 2-(2-methoxy-4-nitrophenoxy)pyrimidine (0.89 mmol, 220 mg, 78%) as a solid. The product was used without further purification.

후처리

  1. customThe reaction mixture was quenched with water
  2. extractionThe aqueous phase was extracted with AcOEt
  3. washThe organic phase was washed with brine
  4. dry with materialwas dried over MgSO4
  5. filtrationwas filtered
  6. concentrationwas concentrated under reduced pressure
  7. washThe crude product was washed with a solution of NaOH 3M
  8. customdried

출처 및 근거

ORD 기록
ord-253ba729488a49fd979764e8aac6fb34
출처 데이터셋
uspto-grants-2013_09
특허 번호
US08524726B2

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