反応式
[C:1]1([N:7]2[CH:11]=[CH:10][CH:9]=[N:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C([Li])CCC.[B:17](OC(C)C)([O:22]C(C)C)[O:18]C(C)C.C(O)(=O)C>O1CCCC1>[C:1]1([N:7]2[C:11]([B:17]([OH:22])[OH:18])=[CH:10][CH:9]=[N:8]2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1参加物
6
実験手順
To a solution of 1-phenyl-1H-pyrazole (20.0 g) in tetrahydrofuran (700 mL) was added dropwise n-butyllithium (2.5M hexane solution, 58.3 mL) under a nitrogen atmosphere at −78° C., and the mixture was stirred at the same temperature for min. To the reaction mixture was added triisopropyl borate (52.2 g) at −78° C., and the mixture was stirred at the same temperature for 1 hr. The mixture was gradually warmed to room temperature, and stirred at room temperature for 20 hr. To the reaction mixture was added acetic acid (20 mL) to adjust to pH 5, and the mixture was concentrated to give the title compound (25.0 g).
後処理
- stirringthe mixture was stirred at the same temperature for 1 hr
- stirringstirred at room temperature for 20 hr
- concentrationthe mixture was concentrated
出典と根拠
- ORDレコード
- ord-0ce174f833cc450e97e671a0493ec689
- 出典データセット
- uspto-grants-2014_11
- 特許番号
- US08883788B2
関連ノート
読み込み中…