Hydrochloric Acid → HCID 86731313, compound

Participants

Reaction Steps

To a mixture of 4-fluoro-5-(methoxymethoxy)pyridine-2-carbaldehyde (2.43 g), sodium dihydrogen phosphate (4.72 g), 2-methyl-2-butene (7.32 mL), water (4 mL) and tert-butanol (20 mL) was added sodium chlorite (2.23 g), and the mixture was stirred at room temperature for 2.5 hr. The reaction mixture was acidified with 1N hydrochloric acid, and the mixture was extracted with ethyl acetate. The obtained organic layer was washed with saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was dissolved in DMF (30 mL), potassium carbonate (1.81 g) and methyl iodide (0.820 mL) were added thereto, and the mixture was stirred at 70° C. for 20 min. To the reaction mixture was added water, and the obtained mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel chromatography (hexane/ethyl acetate) to give the title compound (1.80 g).

Provenance & Evidence