反应详情

Sodium 4-biphenylacetate (25.0 g, 0.106 mol.) was placed in a suspension of 2,4,6-triphenylpyrylium tetrafluoroborate (41.0 g, 0.106 mol.) in 80 mL of acetic anhydride under nitrogen atmosphere and refluxed for 24 hours. The crude product was extracted with a 7:3 ratio mixture of hexane/dichloromethane. The solvent was stripped, and the crude product sublimed 4 times to achieve 99% purity. The practical yield following sublimations was 20%.

1. temperaturerefluxed for 24 hours
2. extractionThe crude product was extracted with a 7:3 ratio mixture of hexane/dichloromethane
3. customThe practical yield