Potassium Phosphate, Tribasic → 4-Benz[a]anthracen-4-ylbenzaldehyde

Beteiligte Stoffe

Reaktionsschritte

14 g (7.9 mmol) of tri-o-tolylphosphine and then 300 mg (1.3 mmol) of palladium(II) acetate are added to a well-stirred suspension of 50 g (333 mmol) of 4-formylphenylboronic acid, 81 g (266 mmol) of 4-bromobenz[a]anthracene and 118 g (558 mmol) of tripotassium phosphate in a mixture of 500 ml of toluene, 500 ml of dioxane and 400 ml of water, and the mixture is subsequently heated under reflux for 16 h. After cooling, the precipitated solid is filtered off with suction, washed three times with 50 ml of toluene, three times with 50 ml of ethanol:water (1:1, v:v), three times with 100 ml of ethanol and finally dried. Yield: 49.7 g (149 mmol), 56%.

Herkunft & Nachweise