HCID 7269394、化合物 → Ethyl 3-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]propanoate
反応式
[CH3:1][C:2]1([CH3:14])[O:6][C@H:5](/[CH:7]=[CH:8]/[C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH2:4][O:3]1>[Pd].CO>[CH3:1][C:2]1([CH3:14])[O:6][C@H:5]([CH2:7][CH2:8][C:9]([O:11][CH2:12][CH3:13])=[O:10])[CH2:4][O:3]1参加物
4
実験手順
To a methanol (200 mL) solution of ethyl (2E)-3-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]acrylate (15.3 g, 76.7 mmol) was added 10% palladium on carbon (1.5 g). The reaction mixture was stirred under an atmosphere of hydrogen overnight. The catalyst was removed by filtration, and the solvent was removed in vacuo. Chromatography over silica afforded the title compound. 1H NMR (400 MHz, CDCl3): δ 4.05-4.15 (m, 2H), 4.02-4.04 (m, 2H), 3.52-3.55 (m, 1H), 2.30-2.47 (m, 2H), 1.83-1.90 (m, 2H), 1.33 (s, 3H), 1.26 (s, 3H), 1.21 (t, J=6.8 Hz, 3H).
後処理
- customThe catalyst was removed by filtration
- customthe solvent was removed in vacuo
出典と根拠
- ORDレコード
- ord-abb701668b8f438ea180783a7c4649c6
- 出典データセット
- uspto-grants-2011_02
- 特許番号
- US07880014B2
反応ノート
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