Ethyl Acetate → alpha-((4-Chlorophenoxy)methyl)-alpha-(1,1-dimethylethyl)-1H-1,2,4-triazole-1-ethanol

HRID 4124

반응식

HRID 4124 반응식
[Cl:1][C:2]1[CH:16]=[CH:15][C:5]([O:6][CH2:7][C:8]2([C:11]([CH3:14])([CH3:13])[CH3:12])[CH2:10][O:9]2)=[CH:4][CH:3]=1.[NH:17]1[CH:21]=[N:20][CH:19]=[N:18]1.C(OCC)(=O)C>C(O)C>[Cl:1][C:2]1[CH:16]=[CH:15][C:5]([O:6][CH2:7][C:8]([OH:9])([C:11]([CH3:14])([CH3:13])[CH3:12])[CH2:10][N:17]2[CH:21]=[N:20][CH:19]=[N:18]2)=[CH:4][CH:3]=1

참가 물질

5

실험 절차

72.15 g (0.3 mole) of 2-(4-chlorophenoxy-methyl)-2-tert.-butyl-oxirane and 24.15 g (0.35 mole) of 1,2,4-triazole were heated under reflux in 120 ml of ethanol for 48 hours. The mixture was then concentrated, the residue was taken up in 200 ml of ethyl acetate and the ethyl acetate mixture was heated. It was then cooled in an ice bath and the solid was filtered off and rinsed with ethyl acetate. The filtrate was concentrated, the residue was dissolved in ether/hexane and the solution was gassed with hydrogen chloride. The precipitate was filtered off and rinsed with ether and the free base was obtained by adding ethyl acetate/1N sodium hydroxide solution. 60.2 g (65% of theory) of 2-(4-chlorophenoxy-methyl)-3,3-dimethyl-1-(1,2,4-triazol-1yl)butan-2-ol of melting point 84°-87° C. were obtained.

후처리

  1. concentrationThe mixture was then concentrated
  2. temperaturethe ethyl acetate mixture was heated
  3. temperatureIt was then cooled in an ice bath
  4. filtrationthe solid was filtered off
  5. washrinsed with ethyl acetate
  6. concentrationThe filtrate was concentrated
  7. dissolutionthe residue was dissolved in ether/hexane
  8. filtrationThe precipitate was filtered off
  9. washrinsed with ether
  10. customthe free base was obtained

출처 및 근거

ORD 기록
ord-d3aa4ef6e7854887855a44c964e29706
출처 데이터셋
uspto-grants-1988_02
특허 번호
US04723984

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