p-(Trifluoromethoxy)benzaldehyde → 4-(TRIFLUOROMETHOXY)CINNAMIC ALDEHYDE

Participants

Reaction Steps

570 mg (3.0 mmol) of 4-(trifluoromethoxy)benzaldehyde and 913 mg (3.0 mmol) of (triphenylphosphoranylidene)acetaldehyde were heated under reflux in 7.5 ml of toluene under nitrogen atmosphere for 1 hour and 45 minutes. The toluene was distilled off under reduced pressure and the thus obtained residue was purified over column chromatography using 20 g of silica gel. The fractions eluted with a mixed solvent of acetic acid-hexane (1:10) were collected to obtain 387 mg (yield: 60%) of the title compound as an oil.

Provenance & Evidence