Reaktionsgleichung
Br[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([C:11]([F:14])([F:13])[F:12])=[N:9][N:10]=2)[CH:7]=1.[F:15][C:16]([F:28])([F:27])[O:17][C:18]1[CH:23]=[CH:22][C:21](B(O)O)=[CH:20][CH:19]=1.C(=O)([O-])[O-].[Na+].[Na+].O>CN(C=O)C>[F:15][C:16]([F:27])([F:28])[O:17][C:18]1[CH:23]=[CH:22][C:21]([C:2]2[CH:3]=[CH:4][C:5]3[N:6]([C:8]([C:11]([F:14])([F:13])[F:12])=[N:9][N:10]=3)[CH:7]=2)=[CH:20][CH:19]=1Komponenten
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 90 °C
Versuchsvorschrift
In a 100 mL round-bottom flask 6-bromo-3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyridine (2.124 g), 4-trifluoromethoxyphenylboronic acid (2.466 g), and sodium carbonate (0.635 g) were suspended in a mixture of DMF (81 mL) and deionized water (9 mL) that was degassed with nitrogen. Tetrakis(triphenylphosphine) palladium (0.462 g) was added and the reaction mixture stirred at 90° C. overnight, concentrated, the residue dissolved in ethyl acetate, and washed with water (2×) and concentrated NaHCO3. The combined organic phase dried over MgSO4 and concentrated, then subjected to gradient chromatography (ethyl acetate/hexane) to produce dark grey solid. The solid was recrystallized from ethyl acetate/hexanes mixture to produce off-white material.
Aufarbeitung
- customwas degassed with nitrogen
- additionTetrakis(triphenylphosphine) palladium (0.462 g) was added
- concentrationconcentrated
- dissolutionthe residue dissolved in ethyl acetate
- washwashed with water (2×) and concentrated NaHCO3
- dry with materialThe combined organic phase dried over MgSO4
- concentrationconcentrated
- customto produce dark grey solid
- customThe solid was recrystallized from ethyl acetate/hexanes mixture
- customto produce off-white material
Quellen und Nachweise
- ORD-Eintrag
- ord-eb18b69caf3141cc8bc5ad8bd788bb8f
- Quelldatensatz
- uspto-grants-2015_02
- Patentnummer
- US08952034B2
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