methyl (S)-3-hydroxyheptanoate → 3-Fluoroheptanoic acid
反応式
[F:1][C@H:2]([CH2:8][CH2:9][CH2:10][CH3:11])[CH2:3][C:4]([O:6]C)=[O:5].O[C@@H](CCCC)CC(OC)=O>>[F:1][CH:2]([CH2:8][CH2:9][CH2:10][CH3:11])[CH2:3][C:4]([OH:6])=[O:5]参加物
3
実験手順
Incidentally, methyl (R)-3-fluoroheptanoate derived from methyl (S)-3-hydroxyheptanoate (98.8% ee, [α]D20 =9.07) was hydrolyzed to obtain 3-fluoroheptanoic acid, which was then reacted with R-(+)-1-(1-naphthyl)ethylamine to form a diastereomer. The resulting diastereomer was found to have an optical purity of 98.7% ee by liquid chromatography, indicating that no racemization took place at all.
出典と根拠
- ORDレコード
- ord-dad46dc236d144e6950b921db96c05fb
- 出典データセット
- uspto-grants-1994_01
- 特許番号
- US05275756
反応ノート
読み込み中…