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3-(Tributylstannyl)pyridine → 1-(3,5-Bis-trifluoromethyl-benzyl)-5-pyridin-3-yl-1H-imidazole-4-carbonitrile

HRID 349269
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반응식

HRID 349269 반응식
[F:1][C:2]([F:23])([F:22])[C:3]1[CH:4]=[C:5]([CH:15]=[C:16]([C:18]([F:21])([F:20])[F:19])[CH:17]=1)[CH2:6][N:7]1[C:11](I)=[C:10]([C:13]#[N:14])[N:9]=[CH:8]1.C([Sn](CCCC)(CCCC)[C:29]1[CH:30]=[N:31][CH:32]=[CH:33][CH:34]=1)CCC>C(#N)C.C1C=CC(C#N)=CC=1.C1C=CC(C#N)=CC=1.Cl[Pd]Cl>[F:1][C:2]([F:23])([F:22])[C:3]1[CH:4]=[C:5]([CH:15]=[C:16]([C:18]([F:21])([F:20])[F:19])[CH:17]=1)[CH2:6][N:7]1[C:11]([C:29]2[CH:30]=[N:31][CH:32]=[CH:33][CH:34]=2)=[C:10]([C:13]#[N:14])[N:9]=[CH:8]1
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참가 물질

5

반응물 2

HCID 34838483-(Tributylstannyl)pyridineHCID 866012221-(3,5-Bis-trifluoromethyl-benzyl)-5-iodo-1H-imidazole-4-carbonitrile

생성물 1

HCID 866012211-(3,5-Bis-trifluoromethyl-benzyl)-5-pyridin-3-yl-1H-imidazole-4-carbonitrile

시약·촉매·용매 2

HCID 498840Bis(benzonitrile)palladium chloride촉매HCID 6342Acetonitrile용매

실험 절차

In a pressure vessel dissolve 1-(3,5-Bis-trifluoromethyl-benzyl)-5-iodo-1H-imidazole-4-carbonitrile (0.52 g, 1.2 mmol) in acetonitrile. Add 3-tributylstannanyl-pyridine (0.64 g, 1.7 mmol) and bis(benzonitrile)dichloropalladium(II) (22 mg, 0.06 mmol), and stir at 100° C. After 72 h, quench with sat. aq. NaHCO3, and extract with ether. Wash the organic layer with brine, dry over MgSO4, filter, and concentrate. Purify by radial chromatography on silica gel to give the title compound: MS (ES) 397.2 (M+1); 1H NMR (300 MHz, CDCl3) δ 8.75 (d, J=4.6 Hz, 1H), 8.60 (ap d, 1H), 7.84 (s, 1H), 7.75 (s, 1H), 7.66 (m, 1H), 7.44 (m, 1H), 7.36 (s, 2H), 5.30 (s, 2H).

후처리

  1. customquench with sat. aq. NaHCO3
  2. extractionextract with ether
  3. washWash the organic layer with brine
  4. dry with materialdry over MgSO4
  5. filtrationfilter
  6. concentrationconcentrate
  7. customPurify by radial chromatography on silica gel

출처 및 근거

ORD 기록
ord-cc72bbe93a664215aa1a6308b75d81c9
출처 데이터셋
uspto-grants-2007_02
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US07179804B2

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