Cesium carbonate → HCID 178461250, 화합물

HRID 1852712노트

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HRID 1852712 반응식
Cl[C:2]1[C:7]2[N:8]([CH2:11][C@H:12]3[CH2:17][CH2:16][C@H:15]([CH3:18])[CH2:14][CH2:13]3)[CH:9]=[N:10][C:6]=2[CH:5]=[C:4]([Cl:19])[N:3]=1.[Cl:20][C:21]1[CH:22]=[C:23](B(O)O)[CH:24]=[N:25][CH:26]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>[Pd](Cl)Cl.C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[Cl:19][C:4]1[N:3]=[C:2]([C:23]2[CH:24]=[N:25][CH:26]=[C:21]([Cl:20])[CH:22]=2)[C:7]2[N:8]([CH2:11][C@H:12]3[CH2:17][CH2:16][C@H:15]([CH3:18])[CH2:14][CH2:13]3)[CH:9]=[N:10][C:6]=2[CH:5]=1

참가 물질

5

반응물 3

HCID 10796Cesium carbonateHCID 201118775-Chloropyridine-3-boronic acidHCID 178461251HCID 178461251, 화합물

생성물 1

HCID 178461250HCID 178461250, 화합물

시약·촉매·용매 1

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)촉매

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온도
90 °C

실험 절차

4,6-dichloro-3-[(trans-4-methylcyclohexyl)methyl]-3H-imidazo[4,5-c]pyridine (6.8 g, 22.8 mmol), 5-chloropyridine-3-boronic acid (3.95 g, 25.1 mmol), cesium carbonate (22.3 g, 68.4 mmol), and 1,1′-Bis(diphenylphosphino)ferrocene-palladium(II)dichloride (1.67 g, 2.28 mmol) were combined in a vial that had been oven-dried and flushed with nitrogen. Dioxane (73 mL) and water (18 mL) were added, and the vial was sealed and heated to 90° C. for 3 hours. The reaction mixture was cooled to room temperature, diluted with ethyl acetate, and washed with water. The organic layer was washed with brine, dried over sodium sulfate, filtered, and concentrated under reduced pressure. The residue was purified by silica gel chromatography (0-100% ethyl acetate/hexanes, linear gradient) to afford 6-chloro-4-(5-chloropyridin-3-yl)-3-[(trans-4-methylcyclohexyl)methyl]-3H-imidazo[4,5-c]pyridine. MS ESI calc'd. for C19H20Cl2N4 [M+H]+ 375. found 375.

후처리

  1. customhad been oven-dried
  2. customflushed with nitrogen
  3. additionDioxane (73 mL) and water (18 mL) were added
  4. customthe vial was sealed
  5. temperatureThe reaction mixture was cooled to room temperature
  6. additiondiluted with ethyl acetate
  7. washwashed with water
  8. washThe organic layer was washed with brine
  9. dry with materialdried over sodium sulfate
  10. filtrationfiltered
  11. concentrationconcentrated under reduced pressure
  12. customThe residue was purified by silica gel chromatography (0-100% ethyl acetate/hexanes, linear gradient)

출처 및 근거

ORD 기록
ord-ad25c8f7132d4e048cc4d3d0b13e6564
출처 데이터셋
uspto-grants-2015_02
특허 번호
US08962611B2

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