Triethylamine → HCID 69138960, compound

Participants

Reaction Steps

A solution (2.29 l) of N-[(E)-(3-fluoro-2-pyridyl)methylidene]-4-methoxyaniline (449 g) and triethylamine (204 g) in dichloromethane was cooled to −10° C. Then acetoxyacetyl chloride (250 g) was added dropwise thereinto and the resultant mixture was stirred at the same temperature for 30 minutes. Then it was heated to room temperature and stirred for 16 hours. The liquid reaction mixture was washed with water and the solvent was concentrated under reduced pressure to thereby give a crude product (723 g). This crude product was recrystallized from a solvent mixture of ethanol (6.9 l) and ethyl acetate (350 ml) to thereby give the title compound (486 g) as brown crystals.

Provenance & Evidence