Sodium Carbonate → 5-Chloro-3-ethyl-benzofuran

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a mixture of 4-chloro-2-iodo O-crotyl phenol (1.5 g, 4.86 mmol), sodium carbonate (12.2 mmol, 1.3 g), sodium formate (4.86 mmol, 330 mg), n-butyl ammonium chloride (5.34 mmol, 1.5 g) and DMF (10 mL) was added palladium di-acetate (0.24 mmol, 55 mg). The reaction was heated at 80° C. and maintained at that temperature overnight. After bringing the reaction to room temperature, the mixture was filtered. The filtrate was dried and evaporated to give a crude product, which was purified by silica gel chromatography (eluent: hexanes) to obtain 5-chloro-3-ethyl-benzofuran as a clear oil (60%, 530 mg).

Herkunft & Nachweise