Cesium carbonate → N-[4-(benzyloxy)phenyl]-3-nitropyridin-2-amine

HRID 1044135노트

반응식

HRID 1044135 반응식
Cl[C:2]1[C:7]([N+:8]([O-:10])=[O:9])=[CH:6][CH:5]=[CH:4][N:3]=1.Cl.[CH2:12]([O:19][C:20]1[CH:26]=[CH:25][C:23]([NH2:24])=[CH:22][CH:21]=1)[C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>CN1C(=O)CCC1>[CH2:12]([O:19][C:20]1[CH:21]=[CH:22][C:23]([NH:24][C:2]2[C:7]([N+:8]([O-:10])=[O:9])=[CH:6][CH:5]=[CH:4][N:3]=2)=[CH:25][CH:26]=1)[C:13]1[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=1

참가 물질

5

반응물 3

HCID 10796Cesium carbonateHCID 796132-Chloro-3-nitropyridineHCID 27238314-Benzyloxyaniline hydrochloride

생성물 1

HCID 40676934N-[4-(benzyloxy)phenyl]-3-nitropyridin-2-amine수율 75%

시약·촉매·용매 1

HCID 13387N-methyl-2-pyrrolidone용매

반응 조건

온도
100 °C

실험 절차

A mixture of 2-chloro-3-nitropyridine (2.0 g), 4-(benzyloxy)aniline hydrochloride (3.6 g), and cesium carbonate (12.3 g) in NMP (50 mL) was heated at 100° C. for 5 h. After cooling to rt, the mixture was partitioned between AcOEt and H2O. The organic layer was washed with brine, dried over Na2SO4 and evaporated. The residue was purified by column chromatography (SiO2, hexane/AcOEt=1/1) to give N-[4-(benzyloxy)phenyl]-3-nitropyridin-2-amine (3.04 g) as a brown solid.

후처리

  1. temperatureAfter cooling to rt
  2. customthe mixture was partitioned between AcOEt and H2O
  3. washThe organic layer was washed with brine
  4. dry with materialdried over Na2SO4
  5. customevaporated
  6. customThe residue was purified by column chromatography (SiO2, hexane/AcOEt=1/1)

출처 및 근거

ORD 기록
ord-b2c99d553517453f848c5684dbb67d00
출처 데이터셋
uspto-grants-2013_10
특허 번호
US08563575B2

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