Cesium carbonate → 5-(4-Methyl-1H-imidazol-1-yl)pyridin-2-amine

HRID 1036219

반응식

HRID 1036219 반응식
I[C:2]1[CH:3]=[CH:4][C:5]([NH2:8])=[N:6][CH:7]=1.[CH3:9][C:10]1[N:11]=[CH:12][NH:13][CH:14]=1.C([O-])([O-])=O.[Cs+].[Cs+]>[Cu]I.CN(C=O)C>[CH3:9][C:10]1[N:11]=[CH:12][N:13]([C:2]2[CH:3]=[CH:4][C:5]([NH2:8])=[N:6][CH:7]=2)[CH:14]=1

참가 물질

6

반응물 3

HCID 10796Cesium carbonateHCID 885792-Pyridinamine, 5-iodo-HCID 178418800HCID 178418800, 화합물

생성물 1

HCID 575128615-(4-Methyl-1H-imidazol-1-yl)pyridin-2-amine

시약·촉매·용매 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매HCID 6228Dimethylformamide용매

실험 절차

To a seal tube charged with 5-iodopyridin-2-amine 143-1 (1.1 g, 5 mmol), 4-methyl-1H-imidazole 143-2 (0.61 g, 7.4 mmol), CuI (0.31 g, 1.63 mmol) and Cs2CO3 (3.25 g, 10 mmol) was added DMF (10 mL). The reaction vessel was flushed with nitrogen and sealed. The reaction was stirred at room temperature for 30 minutes before being heated up to 110° C. for 24 hours. The reaction was diluted into ethyl acetate and the salt was removed by filtration. The filtrate was dried and the residue was purified by silica gel flash chromatography, eluted with 10% methanol in ethyl acetate to give 5-(4-methyl-1H-imidazol-1-yl)pyridin-2-amine 143-3 as off-white solid. MS m/z 175.2 (M+1).

후처리

  1. customThe reaction vessel was flushed with nitrogen
  2. customsealed
  3. temperaturebefore being heated up to 110° C. for 24 hours
  4. additionThe reaction was diluted into ethyl acetate
  5. customthe salt was removed by filtration
  6. customThe filtrate was dried
  7. customthe residue was purified by silica gel flash chromatography
  8. washeluted with 10% methanol in ethyl acetate

출처 및 근거

ORD 기록
ord-4b96c06c17fe4ca982ae692719079982
출처 데이터셋
uspto-grants-2013_10
특허 번호
US08546396B2

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