Hydrochloric Acid → 5-Phenyl-2-tetrazol-5-yl-4H-pyran-4-one
反応式
[O:1]=[C:2]1[C:7]([C:8]2[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=2)=[CH:6][O:5][C:4]([C:14]#[N:15])=[CH:3]1.[N-:16]=[N+:17]=[N-:18].[Na+].[Cl-].[NH4+].Cl>CN(C)C=O>[C:8]1([C:7]2[C:2](=[O:1])[CH:3]=[C:4]([C:14]3[NH:18][N:17]=[N:16][N:15]=3)[O:5][CH:6]=2)[CH:9]=[CH:10][CH:11]=[CH:12][CH:13]=1参加物
6
実験手順
A mixture of 4-oxo-5-phenyl-4H-pyran-2-carbonitrile (2.0 g), sodium azide (1.0 g) and ammonium chloride (0.8 g) in dimethylformamide (20 ml) was stirred at room temperature for an hour. Ice (20 g) was added and the clear solution was acidified with 2 N hydrochloric acid (20 ml) giving a pale solid which was recrystallised from ethanol to give the title product (mp 237°-238° C. with decomposition).
後処理
- customgiving a pale solid which
- customwas recrystallised from ethanol
出典と根拠
- ORDレコード
- ord-d7ba1ee261e442f28c933b54c8b63a06
- 出典データセット
- uspto-grants-1982_12
- 特許番号
- US04364956
反応ノート
読み込み中…