Hydrogen Peroxide → 2-(2-Fluorophenyl)oxazolo[4,5-b]pyridine 4-oxide
反応式
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:9][C:10]2[C:11]([N:16]=1)=[N:12][CH:13]=[CH:14][CH:15]=2.[OH:17]O>C(O)(=O)C>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[O:9][C:10]2[C:11]([N:16]=1)=[N+:12]([O-:17])[CH:13]=[CH:14][CH:15]=2参加物
4
実験手順
A solution of 1 g. of 2-(2-fluorophenyl)oxazolo[4,5-b]pyridine (from Example 6) in 10 ml. of acetic acid was treated with 2 ml. of 30% hydrogen peroxide and heated on the steam bath for 16 hours. After cooling the mixture was diluted with ice-water. The precipitate was collected and recrystallized from dioxane-ether to give 2-(2-fluorophenyl)oxazolo [4,5-b]pyridine-4-oxide, m.p. 214°-216° C.
後処理
- temperatureAfter cooling the mixture
- customThe precipitate was collected
- customrecrystallized from dioxane-ether
出典と根拠
- ORDレコード
- ord-5aa248c2ceb74eabb35f3a15176dd4d9
- 出典データセット
- uspto-grants-1977_07
- 特許番号
- US04038396
反応ノート
読み込み中…