benzyl (2R)-5-methoxy-2-methylpiperidine-1-carboxylate → (2R)-5-methoxy-2-methylpiperidine
反応式
[CH3:1][O:2][CH:3]1[CH2:8][N:7](C(OCC2C=CC=CC=2)=O)[C@H:6]([CH3:19])[CH2:5][CH2:4]1.[H][H]>C(OCC)(=O)C.[Pd]>[CH3:1][O:2][CH:3]1[CH2:8][NH:7][C@H:6]([CH3:19])[CH2:5][CH2:4]1参加物
5
実験手順
To benzyl (2R)-5-methoxy-2-methylpiperidine-1-carboxylate (345 mg, 1.31 mmol) dissolved in ethyl acetate (6.5 mL) was added palladium on carbon (139 mg, 0.13 mmol). Hydrogen gas was added via balloon, and the reaction was stirred at room temperature for 3 hours. The mixture was filtered over celite and concentrated under reduced pressure to afford (2R)-5-methoxy-2-methylpiperidine. 1H NMR (500 MHz, DMSO-d6) δ 3.33 (s, 3H), 3.23-3.13 (m, 2H), 2.66-2.59 (m, 1H), 2.03-1.97 (m, 1H), 1.47-1.40 (m, 1H), 1.39-1.28 (m, 2H), 1.08-1.04 (m, 3H), 0.91-0.79 (m, 2H).
後処理
- filtrationThe mixture was filtered over celite and
- concentrationconcentrated under reduced pressure
出典と根拠
- ORDレコード
- ord-da68e188e1184401a1155ec3ec4d1575
- 出典データセット
- uspto-grants-2014_09
- 特許番号
- US08846657B2
反応ノート
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