Iodine → 8-fluoro-4,5-dihydro-3-iodo-5-methyl-6H-imidazo[1,5-a][1,4]benzodiazepin-6-one

HRID 1493129ノート

反応式

HRID 1493129 の反応式
[F:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[CH:12]=[N:13][CH:14]=[C:10]3[CH2:9][N:8]([CH3:15])[C:7](=[O:16])[C:6]=2[CH:17]=1.[I:18]I.O.S([O-])([O-])(=O)=S.[Na+].[Na+]>CN(C)C=O>[F:1][C:2]1[CH:3]=[CH:4][C:5]2[N:11]3[CH:12]=[N:13][C:14]([I:18])=[C:10]3[CH2:9][N:8]([CH3:15])[C:7](=[O:16])[C:6]=2[CH:17]=1

参加物

6

反応物 4

HCID 807IodineHCID 962WaterHCID 24477Sodium ThiosulfateHCID 229145898-fluoro-4,5-dihydro-5-methyl-6H-imidazo[1,5-a][1,4]benzodiazepin-6-one

生成物 1

HCID 198306858-fluoro-4,5-dihydro-3-iodo-5-methyl-6H-imidazo[1,5-a][1,4]benzodiazepin-6-one

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

2.31 g (10 mmol) of 8-fluoro-4,5-dihydro-5-methyl-6H -imidazo[1,5-a][1,4]benzodiazepin-6-one were stirred at 95° for 1.5 hours with 8.88 g (35 mmol) of iodine in 25 ml of N,N-dimethylformamide. The reaction mixture was then poured into 300 ml of water, decolorized with sodium thiosulfate solution and extracted four times with methylene chloride. The organic extracts were washed three times with water, dried over magnesium sulfate and evaporated. After recrystallization of the residue from ethyl acetate there was obtained 8-fluoro-4,5-dihydro-3-iodo-5-methyl-6H-imidazo[1,5-a][1,4]benzodiazepin-6-one of melting point 187-188°.

後処理

  1. extractionextracted four times with methylene chloride
  2. washThe organic extracts were washed three times with water
  3. dry with materialdried over magnesium sulfate
  4. customevaporated
  5. customAfter recrystallization of the residue from ethyl acetate

出典と根拠

ORDレコード
ord-4c9be8f8b4b7492b82d75f8f01932718
出典データセット
uspto-grants-1991_06
特許番号
US05021411

反応ノート

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