Tetrahydrofuran → 2-Nitro-4-(pentafluoroethyl)benzaldehyde

Participants

Reaction Steps

To a solution of crude (E)-N,N-dimethyl-2-(2-nitro-4-(perfluoroethyl)phenyl)ethenamine (12.2 g, 39.2 mmol) in THF (300 mL) and pH 7.2 phosphate buffer (300 mL) was added NaIO4 (29.3 g, 137.2 mmol). After 2.5 hours an aliquot (˜0.3 mL) was removed, filtered and dried. The proton NMR of this sample indicated that the reaction was complete. The solids were removed and the filter cake was washed with EtOAc. The filtrate was washed with brine (2×100 mL), dried and concentrated. The concentrate was purified via flash chromatography (100% hexane to 5% EtOAc) to provide 2-nitro-4-(perfluoroethyl)benzaldehyde (5.4 g, 52%).

Provenance & Evidence