Thionyl Chloride → 4-(Cyanomethyl)benzoyl chloride
反応式
[C:1]([CH2:3][C:4]1[CH:12]=[CH:11][C:7]([C:8](O)=[O:9])=[CH:6][CH:5]=1)#[N:2].S(Cl)([Cl:15])=O>>[C:1]([CH2:3][C:4]1[CH:12]=[CH:11][C:7]([C:8]([Cl:15])=[O:9])=[CH:6][CH:5]=1)#[N:2]参加物
実験手順
Ten grams of 4-(cyanomethyl)benzoic acid is refluxed in 70 mls. of thionyl chloride for four hours. The solvents are removed leaving a residue of 4-cyanomethylbenzoyl chloride. To a solution of 5.5 g. of 3-amino-2-hydroxy pyridine in cold pyridine there is added slowly, with cooling, 8 g. of 4-cyanomethyl benzoyl chloride. The mixture is allowed to come to room temperature and stirred overnight. The mixture is added to 300 ml. of ice and the solid amide separated by filtration and recrystallized from methanol. A mixture of 3 g. of the above amide in 50 mls. of phsophorus oxychloride is heated under reflux for 5 hours. The solvents are removed in vacuo and the residue is crystallized from ethyl acetate to give 2-(4-cyanomethylphenyl)oxazolo[5,4-b]pyridine.
後処理
- customThe solvents are removed
出典と根拠
- ORDレコード
- ord-2bebc6792b8f42b7bc01b07ee3b8da66
- 出典データセット
- uspto-grants-1978_12
- 特許番号
- US04131677
反応ノート
読み込み中…