Potassium Hydroxide → HCID 20394577、化合物
反応式
[OH-].[K+].C([O-])C.C[O:7][C:8]([C:10]1[N:11]([CH3:33])[C:12](=[O:32])[N:13]2[C:19]3[CH:20]=[CH:21][C:22]([Cl:24])=[CH:23][C:18]=3[C:17]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=3[Cl:31])=[N:16][CH2:15][C:14]=12)=[O:9]>O.CO>[Cl:24][C:22]1[CH:21]=[CH:20][C:19]2[N:13]3[C:12](=[O:32])[N:11]([CH3:33])[C:10]([C:8]([OH:9])=[O:7])=[C:14]3[CH2:15][N:16]=[C:17]([C:25]3[CH:30]=[CH:29][CH:28]=[CH:27][C:26]=3[Cl:31])[C:18]=2[CH:23]=1参加物
5
実験手順
Potassium hydroxide, 1.3 g (0.02 mole), was dissolved in 1 ml of water and added to a suspension of 4 g (0.0097 mole) of 8-chloro-6-(2-chlorophenyl)-1,2-dihydro-2-methyl-1-oxo-4H-imidazo [1,5-a] [1,4]benzodiazepin-3-carboxylic acid methyl ester ethanolate in 200 ml of methanol. The solution was refluxed under argon for 3 hrs, concentrated at reduced pressure, diluted with cold water and acidified with acetic acid to give an off-white solid. The solid was washed with water and air dried on the funnel overnight to give crude end product. Recrystallization from ethanol/methylene chloride gave white crystals with mp 265°-267° (dec).
後処理
- temperatureThe solution was refluxed under argon for 3 hrs
- concentrationconcentrated at reduced pressure
- additiondiluted with cold water
- customto give an off-white solid
- washThe solid was washed with water and air
- customdried on the funnel overnight
- customto give crude end product
- customRecrystallization from ethanol/methylene chloride
- customgave white crystals with mp 265°-267° (dec)
出典と根拠
- ORDレコード
- ord-260231733e1f4a0f8dd98bbeb57175e4
- 出典データセット
- uspto-grants-1979_03
- 特許番号
- US04146722
反応ノート
読み込み中…