2-Oxoadipic acid → Z-2-(2,2-Dimethylcyclopropanecarboxamido)-2-hexenedioic acid
反応式
[CH3:1][C:2]1([CH3:8])[CH2:4][CH:3]1[C:5]([NH2:7])=[O:6].O=[C:10]([CH2:14][CH2:15][CH2:16][C:17]([OH:19])=[O:18])[C:11]([OH:13])=[O:12].C(OC)(=O)CC(C)C>O>[CH3:1][C:2]1([CH3:8])[CH2:4][CH:3]1[C:5]([NH:7]/[C:10](=[CH:14]\[CH2:15][CH2:16][C:17]([OH:19])=[O:18])/[C:11]([OH:13])=[O:12])=[O:6]参加物
5
実験手順
A mixture of 1.0 g. of 2,2-dimethylcyclopropanecarboxamide, 2.4 g. of 2-ketoadipic acid and 25 ml. of methyl isovalerate was heated under reflux for 4 hrs, with removal of H2O by a modified Dean-Stark trap containing molecular sieves (4A). After standing at room temperature overnight, the crystalline precipitate was filtered, washed with ether and recrystallized from ethyl acetate to give 0.23 g. of product, m.p. 163°-165°. The NMR spectrum was consistent with the desired structure.
後処理
- additionA mixture of 1.0 g
- filtrationthe crystalline precipitate was filtered
- washwashed with ether
- customrecrystallized from ethyl acetate
- customto give 0.23 g
出典と根拠
- ORDレコード
- ord-ac5ad055393b4134ab747db883fd05e0
- 出典データセット
- uspto-grants-1985_09
- 特許番号
- US04539208
反応ノート
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