(Triphenylphosphoranylidene)acetaldehyde → 3-Cyano-1-(2-formylethenyl)benzene

Participants

Reaction Conditions

Reaction Steps

To a solution of 3-cyanobenzaldehyde (4.5 g) in toluene (200 ml) was added (triphenylphosphoranylidene)acetaldehyde (13.6 g), and the resulting mixture was stirred at 70° C. for 4 hours and then evaporated in vacuo. The residue obtained was purified by chromatography on a silica gel column using dichloromethane as the eluent. The crude product obtained was recrystallized from a mixture of toluene and hexane to afford the title compound (3.09 g, yield: 57%) as pale yellowish needle crystals.

Provenance & Evidence