反応 #171321
ord-7c7a23c713a14c0b90d32055d5ea850c
反応条件
詳細条件
See reaction.notes.procedure_details.
後処理
- 1ろ過catalyst was filtered off
実験手順
Pd/C Catalyst was filtered off and ammonium hydroxide was used for the oxycodone base precipitation (˜60 mL) at temperature less than 15° C. Precipitated product was washed with water (2×75 mL) and dried on filter giving 28.07 g of oxycodone base. The oxycodone base was transferred into 250-mL RBF with Pd/C catalyst (0.59 g) and water (120 mL). Formic acid (4.36 mL) was added (pH 2.1) and stirring continued for 45 minutes at 50-60° C. The reaction mixture was cooled to ambient temperature, catalyst was filtered off, and oxycodone base was isolated with ammonium hydroxide addition to the filtrate at temperature lower than 20° C. Drying on filter provided 29.51 g of the oxycodone base (2nd crude, Lot O).