Triethylamine → HCID 86616533, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-[(5-amino-2-pyridyl)oxy]benzaldehyde ethylene acetal (5.27 g, 20.4 mmol) and triethylamine (3.41 mL, 24.5 mmol) in THF (80 mL) was added dropwise a solution of 3,4-dichlorobenzoyl chloride (4.49 g, 21.4 mmol) in THF (30 mL) under ice cooling. The resulting solution was stirred for 2 hours at the same temperature. The reaction solution was concentrated under reduced pressure, to the residue, 80% acetic acid (55 mL) was added, and the mixture was heated at 80° C. with stirring for 1 hour. The reaction solution was concentrated under reduced pressure and to the residue was added water, and extracted with ethyl acetate. The ethyl acetate layer was washed with a saturated sodium bicarbonate solution and brine, dried over anhydrous magnesium sulfate, and evaporated. The obtained solid was recrystallized from isopropanol, to thereby yield 5.63 g of the title compound.

Provenance & Evidence