反应详情

To a suspension of (16) (42.6 g, 0.2 mol) in 750 ml of dry tetrahydrofuran (THF) and 20 ml of triethylamine is added 5% palladium on charcoal (6 g). The vigorously stirred suspension is flushed with hydrogen gas and stirred at room temperature under a hydrogen atmosphere until absorption of hydrogen ceases (approximately 90-90% of the molar amount; 8-10 hours). The catalyst is removed by filtration through a bed of celite, and the solvent is removed under reduced pressure. The product (16) is recrystallized from toluene.

1. customThe vigorously stirred suspension is flushed with hydrogen gas
2. custom8-10 hours
3. customThe catalyst is removed by filtration through a bed of celite
4. customthe solvent is removed under reduced pressure
5. customThe product (16) is recrystallized from toluene