反应详情

A mixture of 110 g of 3-(p-tert.amyl-phenyl)-2-methyl-acrolein, 4.75 g of 5% palladium/carbon and 0.390 g of calcium hydroxide is flushed with nitrogen and a solution of 7.6 ml of water in 285 ml of methanol is added. The mixture is hydrogenated at room temperature until 1 mol of hydrogen has been taken up. The catalyst is filtered the filtrate is evaporated and the residue is distilled. There is obtained pure 3-(p-tert.amyl-phenyl)-2-methyl-propionaldehyde of boiling point 109°-111° C./0.06 Torr.

1. customis flushed with nitrogen
2. additiona solution of 7.6 ml of water in 285 ml of methanol is added
3. filtrationThe catalyst is filtered the filtrate
4. customis evaporated
5. distillationthe residue is distilled