But-1-ene-1,3-dione → N-(3,5-difluoro-4-morpholinophenyl)-3-oxobutanamide

Participants

Reaction Conditions

Reaction Steps

A mixture of 3,5-difluoro-4-morpholinoaniline (3.42 g, 16.0 mmol) and acetyl ketene (1.61 g, 19.2 mmol) in EtOAc (20 mL) was stirred at 83° C. overnight. The mixture was cooled to rt and concentrated in vacuo. The residue was purified by a silica gel column chromatography (PE/EtOAc (V/V)=1:1) to give the title compound as a yellow solid (3.10 g, 65%).

Provenance & Evidence