2-Nitrobenzaldehyde → HCID 15673275, compound

Participants

Reaction Conditions

Reaction Steps

To a slurry of activated zinc (6.25 g, 99.2 mmol) in 75 mL anhydrous THF, was added ethyl bromodifluoroacetate (11.0 mL, 85.8 mmol) and the mixture was heated to reflux. After a visible reaction had occurred, 2-nitrobenzaldehyde (5.0 g, 33.1 mmol) in 30 mL anhydrous THF, was added dropwise to maintain reflux. After 3 h, the solution was cooled to 23° C., diluted with EtOAc (50 mL), washed with 1M KHSO4 (2×50 mL) and brine (1×50 mL), and dried (Na2SO4). Concentration in vacuo yielded a residue which was purified by flash chromatography (chloroform:EtOH, 99:1) to afford 2-(3-ethoxy-3-oxo-2,2-difluoro-1-hydroxypropyl)nitrobenzene (8.28 g, 91%) as an orange oil, which was taken on to the next step without further characterization.

Provenance & Evidence