Dimethylformamide → 2-Chloro-4-[2-(4-fluoro-phenyl)-cyclohex-1-enyl]-pyridine

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Trifluoro-methanesulfonic acid 2-(4-fluoro-phenyl)-cyclohex-1-enyl ester (200 mg, 0.62 mmol), 2-Chloro-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-pyridine (162 mg, 0.68 mmol), Bis(triphenylphosphine)Palladium (II) dichloride (43 mg, 0.062 mmol), Sodium Carbonate solution (2.0 M, 1.54 mL, 3.1 mmol) and DMF (3 mL) are mixed in a 5 mL microwave tube with a stir bar and the mixture is heated to 100° C. in microwave reactor for 30 min. The mixture is poured to water (10 mL) and extracted with EtOAc (10 mL×3). The organic extracts are washed with water (20 mL×1), brine (20 mL×1) and dried over anhydrous sodium sulfate. After concentration, the crude is purified by silica flash column chromatography using EtOAc in Heptane (gradient from 0% to 20%) to give 104 mg of the desired product.

Herkunft & Nachweise