Acetic Acid → (E)-4-ethyl-2-methoxyimino-5-nitro-3-hexenamide

HRID 868229노트

반응식

HRID 868229 반응식
[CH2:1](/[C:3](/[CH:11]([N+:13]([O-:15])=[O:14])[CH3:12])=[CH:4]\[C:5](=[N:9][OH:10])[C:6]([NH2:8])=[O:7])[CH3:2].[N+](=[CH2:18])=[N-].C(O)(=O)C>CO>[CH2:1](/[C:3](/[CH:11]([N+:13]([O-:15])=[O:14])[CH3:12])=[CH:4]\[C:5](=[N:9][O:10][CH3:18])[C:6]([NH2:8])=[O:7])[CH3:2]

참가 물질

5

반응물 3

HCID 176Acetic AcidHCID 9550DiazomethaneHCID 86742405(E)-4-ethyl-2-hydroxyimino-5-nitro-3-hexenamide

생성물 1

HCID 86742404(E)-4-ethyl-2-methoxyimino-5-nitro-3-hexenamide

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

To (E)-4-ethyl-2-hydroxyimino-5-nitro-3-hexenamide (37 mg) in methanol (5 ml) was added excess etheral diazomethane at -20° C. The resulting mixture was allowed to stand at 0° C. for an hour and then acetic acid was added thereto until the yellow color of the solution was discharged. The resulting reaction mixture was evaporated under reduced pressure to give an oil which was purified by preparative thin layer chromatography, developing with chloroform containing 5% methanol to give (E)-4-ethyl-2-methoxyimino-5-nitro-3-hexenamide (21.5 mg).

후처리

  1. waitto stand at 0° C. for an hour
  2. customThe resulting reaction mixture
  3. customwas evaporated under reduced pressure
  4. customto give an oil which
  5. customwas purified by preparative thin layer chromatography

출처 및 근거

ORD 기록
ord-d26d0d9c34ba449291067e49f637a27a
출처 데이터셋
uspto-grants-1988_10
특허 번호
US04778804

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