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Potassium vinyltrifluoroborate → (5-Chloro-2-vinylpyridin-3-yl)(2-fluoro-3-methoxy-6-vinylphenyl)methanone

HRID 1987144
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1987144
Cl[C:2]1[C:7]([C:8]([C:10]2[C:15]([CH:16]=[CH2:17])=[CH:14][CH:13]=[C:12]([O:18][CH3:19])[C:11]=2[F:20])=[O:9])=[CH:6][C:5]([Cl:21])=[CH:4][N:3]=1.[CH:22]([B-](F)(F)F)=[CH2:23].[K+]>C(O)CC.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[Cl:21][C:5]1[CH:6]=[C:7]([C:8]([C:10]2[C:15]([CH:16]=[CH2:17])=[CH:14][CH:13]=[C:12]([O:18][CH3:19])[C:11]=2[F:20])=[O:9])[C:2]([CH:22]=[CH2:23])=[N:3][CH:4]=1
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Komponenten

5

Edukt 2

HCID 23679353Potassium vinyltrifluoroborateHCID 86609786(2,5-Dichloropyridin-3-yl)(2-fluoro-3-methoxy-6-vinylphenyl)methanone

Produkt 1

HCID 57722878(5-Chloro-2-vinylpyridin-3-yl)(2-fluoro-3-methoxy-6-vinylphenyl)methanone

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 44119782Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)Katalysator
HCID 1031
1-Propanol
Lösungsmittel

Versuchsvorschrift

To a stirred solution of (2,5-dichloropyridin-3-yl)(2-fluoro-3-methoxy-6-vinylphenyl)methanone (11.6 g, 35.6 mmol) in nPrOH (200 mL) were added potassium vinyltrifluoroborate (5.00 g, 37.3 mmol), PdCl2(dppf) (580 mg, 0.71 mmol), and TEA (4.96 mL, 35.6 mmol). The reaction mixture was purged with N2 for 10 min, heated to reflux for 3 h, cooled to room temperature, treated with water, and concentrated. The residue was extracted with EtOAc (×3). The combined organics were washed with brine, dried (Na2SO4), concentrated, and purified by flash chromatography to afford the title compound. 1H NMR (600 MHz, CDCl3) δ 8.63 (d, 1H); 7.62 (d, 1H); 7.41 (d, 1H); 7.36 (dd, 1H); 7.09 (t, 1H); 6.57 (dd, 1H); 6.54 (d, 1H); 5.63 (m, 2H); 5.23 (d, 1H); 3.92 (s, 3H). LRMS (ESI) calc'd for (C17H13ClFNO2) [M+H]+, 318.1; found 318.1.

Aufarbeitung

  1. customThe reaction mixture was purged with N2 for 10 min
  2. temperatureheated
  3. temperatureto reflux for 3 h
  4. additiontreated with water
  5. concentrationconcentrated
  6. extractionThe residue was extracted with EtOAc (×3)
  7. washThe combined organics were washed with brine
  8. dry with materialdried (Na2SO4)
  9. concentrationconcentrated
  10. custompurified by flash chromatography

Quellen und Nachweise

ORD-Eintrag
ord-d7990cb56eb24877a980a0b07f289575
Quelldatensatz
uspto-grants-2009_06
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07550478B2

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