Methyl iodide → 3-Fluoro-2-methoxybenzaldehyde

Temperature

90 °C

To an acetonitrile (50 mL) solution containing 3.01 g (21.5 mmol) of commercially available 3-fluoro-2-hydroxybenzaldehyde were added 5.92 g (42.8 mmol) of potassium carbonate and 6.66 mL (107 mmol) of methyl iodide, and the mixture was stirred at 90° C. for 3 hours. After allowing to stand at room temperature overnight, the reaction mixture was poured into water, and extracted with ethyl acetate. The organic layer was successively washed with water and brine, and dried over anhydrous magnesium sulfate. The solvent was removed, and the obtained residue was purified by silica gel column chromatography (Wako gel C-100, hexane-ethyl acetate, gradient) to obtain 3.22 g of a crude product of 3-fluoro-2-methoxybenzaldehyde.

1. waitto stand at room temperature overnight
2. extractionextracted with ethyl acetate
3. washThe organic layer was successively washed with water and brine
4. dry with materialdried over anhydrous magnesium sulfate
5. customThe solvent was removed
6. customthe obtained residue was purified by silica gel column chromatography (Wako gel C-100, hexane-ethyl acetate, gradient)

ORD record

ord-9348d8697ad84dc29fce9d191391e78b

Source dataset

uspto-grants-2011_06

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US07964531B2