Hydroxyamine hydrochloride → 2-Phenylpyrazolo[1,5-a]pyridine-3-carbaldehyde oxime hydrochloride
反応式
[C:1]1([C:7]2[C:15]([CH:16]=O)=[C:10]3[CH:11]=[CH:12][CH:13]=[CH:14][N:9]3[N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[ClH:18].[NH2:19][OH:20]>C(O)C>[ClH:18].[C:1]1([C:7]2[C:15]([CH:16]=[N:19][OH:20])=[C:10]3[CH:11]=[CH:12][CH:13]=[CH:14][N:9]3[N:8]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1参加物
4
実験手順
A mixture of 2-phenylpyrazolo[1,5-a]pyridine-3-carbaldehyde (0.5 g) and hydroxylamine.hydrochloride (0.17 g) in ethanol (5 ml) was refluxed for 1.5 hours and evaporated in vacuo. The residue was triturated with ethyl acetate and recrystallized from a mixture of ethanol and ethyl acetate to give 2-phenylpyrazolo[1,5-a]pyridine-3-carbaldehyde oxime hydrochloride (0.28 g).
後処理
- temperaturewas refluxed for 1.5 hours
- customevaporated in vacuo
- customThe residue was triturated with ethyl acetate
- customrecrystallized from a mixture of ethanol and ethyl acetate
出典と根拠
- ORDレコード
- ord-6efa50fe8e4246b898e3a25b674b3132
- 出典データセット
- uspto-grants-1993_01
- 特許番号
- US05179103
反応ノート
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