反応式
[CH2:1]([N:8]1[CH:12]=[CH:11][N:10]=[C:9]1[CH:13]=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Cl-].[NH4+].[N-]=[N+]=[N-].[Na+].C(N1C=CN=C1C#N)C1C=CC=CC=1.N=[N+]=[N-].[NH:38]1C=[N:41][N:40]=[N:39]1>CN(C)C=O.O>[CH2:1]([N:8]1[CH:12]=[CH:11][N:10]=[C:9]1[C:13]1[NH:41][N:40]=[N:39][N:38]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1参加物
9
反応物 6
生成物 1
試薬・触媒・溶媒 2
実験手順
Obtained by reacting 9.3 g (0.05 mol) of 1-benzyl-2-formylimidazole (see Liebigs Ann. Chem. 718 (1968) pp. 249-259) with 8.0 g (0.15 mol) of ammonium chloride and 9.8 g (0.15 mol) of sodium azide in 50 ml of dimethylformamide at 120°-130° C. The isolation of the 1-benzyl-2-cyanoimidazole intermediate (obtained by Schmidt-rearrangement) may be omitted, since this compound adds excess hydrazoic acid to the tetrazole in situ. After 20 hours, it is cooled, and 500 ml of water are added, the precipitate formed filtered off and recrystallised several times from dimethylformamide. M.p. 274°-275° C.
後処理
- customObtained
- customat 120°-130° C
- temperatureit is cooled
- customthe precipitate formed
- filtrationfiltered off
- customrecrystallised several times from dimethylformamide
出典と根拠
- ORDレコード
- ord-faced8bfa88b4593be37b6ecae11b106
- 出典データセット
- uspto-grants-1979_05
- 特許番号
- US04152440
関連ノート
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