Dimethylformamide → 3-chloro-2-(1H-pyrrol-1-yl)pyridine

HRID 2427049노트

반응식

HRID 2427049 반응식
[NH:1]1[CH:5]=[CH:4][CH:3]=[CH:2]1.[Cl:6][C:7]1[C:8](S(C)(=O)=O)=[N:9][CH:10]=[CH:11][CH:12]=1.C(=O)([O-])[O-].[Cs+].[Cs+].CN(C)C=O>O>[Cl:6][C:7]1[C:8]([N:1]2[CH:5]=[CH:4][CH:3]=[CH:2]2)=[N:9][CH:10]=[CH:11][CH:12]=1

참가 물질

6

반응물 4

HCID 6228DimethylformamideHCID 8027PyrroleHCID 10796Cesium carbonateHCID 134334253-Chloro-2-methanesulfonylpyridine

생성물 1

HCID 587620843-chloro-2-(1H-pyrrol-1-yl)pyridine수율 63.9%

시약·촉매·용매 1

HCID 962Water용매

반응 조건

온도
60 °C

실험 절차

A mixture of 1.0 g of pyrrole, 3.0 g of 3-chloro-2-methanesulfonylpyridine, 6.6 g of cesium carbonate and 10 ml of N,N-dimethylformamide was stirred at 60° C. for 27 hours. After the reaction mixture was allowed to cool to room temperature, water was poured and the mixture was extracted with ethyl acetate two times. The organic layers were combined, washed successively with water and an aqueous saturated sodium chloride solution, dried over magnesium sulfate, and concentrated under reduced pressure. The resulting residue was subjected to silica gel column chromatography to obtain 1.7 g of 3-chloro-2-(1H-pyrrol-1-yl)pyridine of the formula:

후처리

  1. temperatureto cool to room temperature
  2. extractionthe mixture was extracted with ethyl acetate two times
  3. washwashed successively with water
  4. dry with materialan aqueous saturated sodium chloride solution, dried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure

출처 및 근거

ORD 기록
ord-35186345844c44f09b7d072764edf631
출처 데이터셋
uspto-grants-2011_06
특허 번호
US07968573B2

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