Dimethylformamide → 4-(2-Methoxymethoxyethyl)benzaldehyde

Participants

Reaction Conditions

Reaction Steps

Next, to a mixture of bromo-4-(2-methoxymethoxyethyl)benzene (12.0 g, 49.0 mmol) and tetrahydrofuran (75 ml), a 1.58 mol/L n-butyllithium n-hexane solution (34 ml, 53.7 mmol) was added dropwise at −78° C. over 10 minutes. After stirring at −78° C. for 1 hour, a solution of N,N-dimethylformamide (11.4 mL, 147 mmol) in tetrahydrofuran (5 mL) was added and stirred at −78° C. for 1.5 hours. After warming to room temperature, the reaction mixture was poured into saturated aqueous ammonium chloride and extracted with ethyl acetate. The organic layer was washed with saturated aqueous sodium chloride and dried over anhydrous magnesium sulfate. After concentration, the resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=80:20) to give 4-(2-methoxymethoxyethyl)benzaldehyde (7.0 g, 74%).

Provenance & Evidence