Ethyl Acetate → [2-amino-5-(1H-indol-4-yl)-phenyl]-pyridin-3-yl-methanone

HRID 1784881Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1784881
[NH2:1][C:2]1[CH:7]=[CH:6][C:5](Br)=[CH:4][C:3]=1[C:9]([C:11]1[CH:12]=[N:13][CH:14]=[CH:15][CH:16]=1)=[O:10].CC1(C)C(C)(C)OB([C:25]2[CH:33]=[CH:32][CH:31]=[C:30]3[C:26]=2[CH:27]=[CH:28][N:29]3[Si](C(C)C)(C(C)C)C(C)C)O1.[O-]P([O-])([O-])=O.[K+].[K+].[K+].C(OCC)(=O)C>O1CCOCC1.CN(C=O)C.Cl[Pd-](P(C1CC2CC1CC2)C1CC2CC1CC2)C1C=CC=CC=1C1C=CC=CC=1N(C)C>[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:25]2[CH:33]=[CH:32][CH:31]=[C:30]3[C:26]=2[CH:27]=[CH:28][NH:29]3)=[CH:4][C:3]=1[C:9]([C:11]1[CH:12]=[N:13][CH:14]=[CH:15][CH:16]=1)=[O:10]

Komponenten

8

Edukt 4

HCID 8857Ethyl AcetateHCID 62657Potassium Phosphate, TribasicHCID 27955744-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-YL)-1-(triisopropylsilyl)-1H-indoleHCID 13549722(2-Amino-5-bromophenyl)(pyridin-3-yl)methanone

Produkt 1

HCID 15603495[2-amino-5-(1H-indol-4-yl)-phenyl]-pyridin-3-yl-methanone

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 178482708HCID 178482708, VerbindungKatalysatorHCID 6228DimethylformamideLösungsmittelHCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

To (2-amino-5-bromo-phenyl)-pyridin-3-yl-methanone (0.120 g, 0.43 mmol) and 4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1-triisopropylsilanyl-1H-indole (0.210 g, 0.52 mmol) in 1 mL of dioxane and 0.5 mL of DMF was added chloro(di-2-norbornylphosphino)(2′-dimethylamino-1,1′-biphenyl-2-yl)palladium (II) and 2M aqueous K3PO4 (0.5 mL, 1 mmol). The resulting reaction mixture was heated at 120° C. for 1 h. Ethyl acetate was then added to the reaction mixture and the organic phase was washed with water and brine, dried, filtered and concentrated. The crude product was purified by preparative TLC to afford [2-amino-5-(1H-indol-4-yl)-phenyl]-pyridin-3-yl-methanone. 1H NMR (400 MHz, CD3OD): δ 8.82 (s, 1H), 8.63 (d, J=4.9 Hz, 1H), 8.03 (d, J=7.8 Hz, 1H), 7.70 (d, J=8.4 Hz, 1H), 7.63 (d, J=2.1 Hz, 1H), 7.47 (dd, J=7.8, 5.0 Hz, 1H), 7.30 (d, J=8.0 Hz, 1H), 7.21 (d, J=3.2 Hz, 1H), 7.10 (t, J=7.7 Hz, 1H), 6.97-6.93 (m, 2H), 6.48 (d, J=3.3 Hz, 1H).

Aufarbeitung

  1. customThe resulting reaction mixture
  2. washthe organic phase was washed with water and brine
  3. customdried
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude product was purified by preparative TLC

Quellen und Nachweise

ORD-Eintrag
ord-02f972cc0f5e4e0294a06273c791e05b
Quelldatensatz
uspto-grants-2009_03
Patentnummer
US07504401B2

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