Trimethyl orthoformate → 4-Dimethoxymethyl-2-fluoro-1-nitrobenzene

Participants

Reaction Steps

A mixture of 0.5 g (2.96 mmole) of 3-fluoro-4-nitrobenzaldehyde, 1 mL of trimethylorthoformate, 0.020 g of p-toluenesulfonic acid monohydrate and 2 mL of methanol was heated at reflux for 1 hour. The mixture was cooled, and 1 mL of saturated aqueous sodium bicarbonate solution was added. The mixture was concentrated under reduced pressure, and the residue was partitioned between 30 mL of ethyl acetate and 30 mL of saturated aqueous sodium bicarbonate solution. The organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to give 0.64 g of 4-dimethoxymethyl-2-fluoro-1-nitro-benzene (IV.2a) as a pale yellow oil. This material was used without further purification.

Provenance & Evidence