1-Butanol → 2-(Dibutoxymethyl)-4-fluoro-1-nitrobenzene

Participants

Reaction Steps

Dissolve 5-fluoro-2-nitrobenzaldehyde (9.43 g, 55.81 mmol), 1-butanol (12.41 g, 167.4 mmol) and 4toluenesulfonic acid monohydrate (0.9 g, 4.7 mmol) in toluene (84 mL). Heat the reaction mixture to reflux, and remove the water using a Dean-Stark apparatus. Continue to heat the reaction mixture for 3 hours. Add water and extract the aqueous layer with ethyl acetate. Combine the organic layers and dry over anhydrous sodium sulfate. Filter, concentrate under reduced pressure and purify by flash column chromatography (1% v/v triethylamine buffered silica gel, 5% ethyl acetate/hexane) to obtain 15.8 g (95%) of the title compound as colorless oil.

Provenance & Evidence