Ammonia → 5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxamide

HRID 67339노트

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HRID 67339 반응식
[CH3:1][N:2]1[C:8](=[O:9])[C:7]2[CH:10]=[CH:11][CH:12]=[CH:13][C:6]=2[N:5]2[CH:14]=[N:15][C:16]([C:17]([O:19]CC)=O)=[C:4]2[CH2:3]1.[Cl-].[NH4+:23].N>CO>[CH3:1][N:2]1[C:8](=[O:9])[C:7]2[CH:10]=[CH:11][CH:12]=[CH:13][C:6]=2[N:5]2[CH:14]=[N:15][C:16]([C:17]([NH2:23])=[O:19])=[C:4]2[CH2:3]1

참가 물질

5

반응물 3

HCID 222AmmoniaHCID 25517Ammonium ChlorideHCID 127597Ro 14-7437

생성물 1

HCID 205153215,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxamide

시약·촉매·용매 1

HCID 887Methanol용매

반응 조건

온도
120 °C

실험 절차

A mixture of 10.0 g of ethyl 5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxylate, 200 ml of methanol, 0.5 g of ammonium chloride and 30 g of ammonia (100%) is stirred in an autoclave under nitrogen (40 bar) at a temperature of 120° C. for 12 hours. After cooling and discharging the over-pressure, the mixture is evaporated to dryness. After partition of the residue between methylene chloride and water, the organic phase is dried and evaporated. The residue is recrystallised from ethyl acetate, there being obtained 5,6-dihydro-5-methyl-6-oxo-4H-imidazo[1,5-a][1,4]benzodiazepine-3-carboxamide in the form of white crystals of melting point 274°-275° C.

후처리

  1. temperatureAfter cooling
  2. customthe mixture is evaporated to dryness
  3. customAfter partition of the residue between methylene chloride and water
  4. customthe organic phase is dried
  5. customevaporated
  6. customThe residue is recrystallised from ethyl acetate, there

출처 및 근거

ORD 기록
ord-51ba4cee14384b82b54a6fbba37da504
출처 데이터셋
uspto-grants-1982_08
특허 번호
US04346030

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