Vinyl Acetate → (R)-methyl 9-hydroxy-10-undecenate
反応式
[OH:1][CH:2]([CH:14]=[CH2:15])[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][C:10]([O:12][CH3:13])=[O:11].C(OC=C)(=O)C>C(OC(C)C)(C)C>[OH:1][C@@H:2]([CH:14]=[CH2:15])[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][C:10]([O:12][CH3:13])=[O:11]参加物
4
反応条件
- 温度
- 30 °C
実験手順
To a solution of methyl 9-hydroxy-10-undecenate (500 mg) in diisopropyl ether (12 ml) was added vinyl acetate (323 μl) and Lipase PS (AMANO SEIYAKU Co., Ltd.) (500 mg) and then shaken for 62 hours at 30° C. The reaction mixture was filtrated and the filtrate was poured into ethyl acetate. The organic layer was washed with saturated brine, dried over magnesium sulfate anhydride, and then evaporated under reduced pressure. The resulting product was purified by silica gel column chromatography (n-hexane:ethyl acetate=3:1) to give (R)-methyl 9-hydroxy-10-undecenate (152 mg, 30.4%).