4-Vinylpyridine → 2-[3-[(E)-2-[5-[(E)-2-(4-pyridyl)vinyl]pyridin-3-yl]vinyl]phenylamino]-3-nitropyridine

HRID 1953408Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1953408
Br[C:2]1[CH:3]=[C:4](/[CH:8]=[CH:9]/[C:10]2[CH:11]=[C:12]([NH:16][C:17]3[C:22]([N+:23]([O-:25])=[O:24])=[CH:21][CH:20]=[CH:19][N:18]=3)[CH:13]=[CH:14][CH:15]=2)[CH:5]=[N:6][CH:7]=1.[CH:26]([C:28]1[CH:33]=[CH:32][N:31]=[CH:30][CH:29]=1)=[CH2:27].C(=O)(O)[O-].[Na+]>[Cl-].C([N+](CCCC)(CCCC)CCCC)CCC.CN(C)C=O.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[N:31]1[CH:32]=[CH:33][C:28](/[CH:26]=[CH:27]/[C:2]2[CH:3]=[C:4](/[CH:8]=[CH:9]/[C:10]3[CH:11]=[C:12]([NH:16][C:17]4[C:22]([N+:23]([O-:25])=[O:24])=[CH:21][CH:20]=[CH:19][N:18]=4)[CH:13]=[CH:14][CH:15]=3)[CH:5]=[N:6][CH:7]=2)=[CH:29][CH:30]=1

Komponenten

7

Edukt 3

HCID 75024-VinylpyridineHCID 516892Sodium Bicarbonate2×HCID 232980802-[3-[(E)-2-(5-bromopyridin-3-yl)vinyl]phenylamino]-3-nitropyridine

Produkt 1

HCID 232981352-[3-[(E)-2-[5-[(E)-2-(4-pyridyl)vinyl]pyridin-3-yl]vinyl]phenylamino]-3-nitropyridineAusbeute 40,8 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 70681Tetrabutylammonium ChlorideKatalysatorHCID 167845palladium(II) acetateKatalysatorHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of 2-[3-[(E)-2-(5-bromopyridin-3-yl)vinyl]phenylamino]-3-nitropyridine (800 mg), 4-vinylpyridine (233 mg), palladium(II) acetate (27 mg), tetra-n-butylammonium chloride (616 mg) and sodium bicarbonate (432 mg) in N,N-dimethylformamide (4 ml) was stirred at 120pbC. for 4 hours. The mixture was poured into sodium bicarbonate solution and extracted with ethyl acetate twice. The combined organic solution was washed with aqueous sodium bicarbonate and brine, dried over magnesium sulfate and concentrated. The residue was crystallized from ethanol to give 2-[3-[(E)-2-[5-[(E)-2-(4-pyridyl)vinyl]pyridin-3-yl]vinyl]phenylamino]-3-nitropyridine (346 mg).

Aufarbeitung

  1. extractionextracted with ethyl acetate twice
  2. washThe combined organic solution was washed with aqueous sodium bicarbonate and brine
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated
  5. customThe residue was crystallized from ethanol

Quellen und Nachweise

ORD-Eintrag
ord-ac9eb382d52d46e39402426b8699a75d
Quelldatensatz
uspto-grants-2000_09
Patentnummer
US06117875

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