HCID 12266577、化合物 → p-Xylylenediphosphonic Acid
反応式
C[O:2][P:3]([CH2:7][C:8]1[CH:13]=[CH:12][C:11]([CH2:14][P:15](=[O:20])([O:18]C)[O:16]C)=[CH:10][CH:9]=1)(=[O:6])[O:4]C>Cl>[C:11]1([CH2:14][P:15](=[O:16])([OH:18])[OH:20])[CH:10]=[CH:9][C:8]([CH2:7][P:3](=[O:2])([OH:4])[OH:6])=[CH:13][CH:12]=1参加物
3
実験手順
A mixture of bisphosphate ester (Example 19, 1.0 g, 3.1 mol) and concentrated HCl (10 ml) is heated to reflux temperature. A clear solution is obtained. The solution is heated at reflux temperature for 3.5 hours during which time a white precipitate formes. The mixture is cooled and then concentrated under reduced pressure to yield a white solid. The solid is recrystallized from water to give 520 mg of a white solid, mp >300° C.
後処理
- temperatureis heated
- temperatureto reflux temperature
- customA clear solution is obtained
- temperatureThe solution is heated
- temperatureat reflux temperature for 3.5 hours during which time a white precipitate formes
- temperatureThe mixture is cooled
- concentrationconcentrated under reduced pressure
- customto yield a white solid
- customThe solid is recrystallized from water
出典と根拠
- ORDレコード
- ord-38d3050482ee4fc5937e8aa4e4d26f23
- 出典データセット
- uspto-grants-1994_03
- 特許番号
- US05298498
反応ノート
読み込み中…