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Triphenylphosphine → 5-[4-fluoro-3-(1-methyl-1H-[1,2,3]triazol-4-ylmethoxy)phenyl]-2-trifluoromethyl[1,8]naphthyridine

HRID 1061836
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1061836
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:17]3[C:12](=[N:13][C:14]([C:18]([F:21])([F:20])[F:19])=[CH:15][CH:16]=3)[N:11]=[CH:10][CH:9]=2)=[CH:4][C:3]=1[OH:22].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CC(OC(/N=N/C(OC(C)C)=O)=O)C.[CH3:56][N:57]1[CH:61]=[C:60]([CH2:62]O)[N:59]=[N:58]1>C1COCC1>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[CH:9]=[CH:10][N:11]=[C:12]3[C:17]=2[CH:16]=[CH:15][C:14]([C:18]([F:19])([F:20])[F:21])=[N:13]3)=[CH:4][C:3]=1[O:22][CH2:62][C:60]1[N:59]=[N:58][N:57]([CH3:56])[CH:61]=1
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Komponenten

6

Edukt 4

HCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 126543491-Methyl-1H-1,2,3-triazole-4-methanolHCID 222853142-Fluoro-5-(7-trifluoromethyl[1,8]naphthyridin-4-yl)phenol

Produkt 1

HCID 102724985-[4-fluoro-3-(1-methyl-1H-[1,2,3]triazol-4-ylmethoxy)phenyl]-2-trifluoromethyl[1,8]naphthyridine

Reagenzien, Katalysatoren, Lösungsmittel

1
HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

2-Fluoro-5-(7-trifluoromethyl[1,8]naphthyridin-4-yl)phenol (50.0 mg, 0.16 mmol), resin-bound triphenylphosphine (180 mg of 3 mmol/g resin, 5.4 mmol), diisopropylazodicarboxylate (76.8 μL, 78.8 mg, 0.40 mmol) and 1-methyl-1H-1,2,3-triazole-4-methanol (prepared as described in WO 0023449, 22.0 mg, 0.20 mmol) were stirred together in THF (3 mL) at room temperature overnight. The mixture was filtered, and the filtrate was diluted with dichloromethane (15 mL), was washed with 1 N sodium hydroxide (2×10 mL), was dried over magnesium sulfate and was concentrated in vacuo. The residue was purified by flash chromatography on silica gel, eluting with 2.5% methanol in dichloromethane, affording 5-[4-fluoro-3-(1-methyl-1H-[1,2,3]triazol-4-ylmethoxy)phenyl]-2-trifluoromethyl[1,8]naphthyridine as a colourless solid, which was recrystallised from ethyl acetate/isohexane (26.7 mg, 41%). δH (360 MHz, CDCl3) 4.13 (3H, s), 5.35 (2H, s), 7.03-7.07 (1H, m), 7.25-7.31 (1H, m), 7.38 (1H, dd, J 2.1 and 7.7), 7.54 (1H, d, J 4.6), 7.70 (1H, s), 7.86 (1H, d, J 8.8), 8.53 (1H, d, J 8.8), 9.26 (1H, d, J 4.2). m/z (ES+) 404 [MH]+.

Aufarbeitung

  1. filtrationThe mixture was filtered
  2. additionthe filtrate was diluted with dichloromethane (15 mL)
  3. washwas washed with 1 N sodium hydroxide (2×10 mL)
  4. dry with materialwas dried over magnesium sulfate
  5. concentrationwas concentrated in vacuo
  6. customThe residue was purified by flash chromatography on silica gel
  7. washeluting with 2.5% methanol in dichloromethane

Quellen und Nachweise

ORD-Eintrag
ord-94d9752d35dc4c6b8d87f44f70dbb08f
Quelldatensatz
uspto-grants-2005_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06960598B2

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