8-fluoro-5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxaldehyde-3-oxime → 8-fluoro-5-methyl-6-oxo-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carbonitrile

HRID 67446

反応式

HRID 67446 の反応式
[F:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[CH:12]=[N:13][C:14]([CH:15]=[N:16]O)=[C:10]3[CH2:9][N:8]([CH3:18])[C:7](=[O:19])[C:6]=2[CH:20]=1>C(OC(=O)C)(=O)C>[F:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[CH:12]=[N:13][C:14]([C:15]#[N:16])=[C:10]3[CH2:9][N:8]([CH3:18])[C:7](=[O:19])[C:6]=2[CH:20]=1

参加物

3

反応物 1

HCID 867382638-fluoro-5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxaldehyde-3-oxime

生成物 1

HCID 98815428-fluoro-5-methyl-6-oxo-5,6-dihydro-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carbonitrile

試薬・触媒・溶媒 1

HCID 7918Acetic Anhydride溶媒

実験手順

1.65 g (6 mmol) of 8-fluoro-5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxaldehyde-3-oxime are heated to boiling under reflux for 4.5 hours in 15 ml of acetic acid anhydride and the mixture is evaporated. The residue is taken up in 100 ml of chloroform and the solution is washed once with saturated sodium hydrogen carbonate solution and once with water. The chloroform solution is dried over magnesium sulphate and concentrated. After column chromatography and recrystallisation from ethyl acetate, there is obtained 8-fluoro-5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carbonitrile of melting point 236°-237° C.

後処理

  1. customthe mixture is evaporated
  2. washthe solution is washed once with saturated sodium hydrogen carbonate solution and once with water
  3. dry with materialThe chloroform solution is dried over magnesium sulphate
  4. concentrationconcentrated
  5. customAfter column chromatography and recrystallisation from ethyl acetate

出典と根拠

ORDレコード
ord-e1340c30a34d46d59af66ba3607d9fff
出典データセット
uspto-grants-1982_08
特許番号
US04346034

関連ノート

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