5-Nitrofurfural → HCID 178463007, 화합물

HRID 515424

반응식

HRID 515424 반응식
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[CH2:13][CH2:12][CH:11]([C:14]3[O:18][C:17](=[O:19])[N:16]([CH2:20][CH3:21])[N:15]=3)[CH2:10][CH2:9]2)=[CH:4][CH:3]=1.[N+:22]([C:25]1[O:29][C:28]([CH:30]=O)=[CH:27][CH:26]=1)([O-:24])=[O:23]>CC(O)=O.CO>[CH2:20]([N:16]1[N:15]=[C:14]([CH:11]2[CH2:10][CH2:9][N:8]([C:5]3[CH:4]=[CH:3][C:2](/[N:1]=[CH:30]/[C:28]4[O:29][C:25]([N+:22]([O-:24])=[O:23])=[CH:26][CH:27]=4)=[CH:7][CH:6]=3)[CH2:13][CH2:12]2)[O:18][C:17]1=[O:19])[CH3:21]

참가 물질

5

반응물 2

HCID 127745-NitrofurfuralHCID 896508765-[1-(4-Aminophenyl)-4-piperidyl]-3-ethyl-2,3-dihydro-1,3,4-oxadiazol-2-one

생성물 1

HCID 178463007HCID 178463007, 화합물수율 87%

시약·촉매·용매 2

HCID 176Acetic Acid촉매HCID 887Methanol용매

실험 절차

5-[1-(4-Aminophenyl)-4-piperidyl]-3-ethyl-2,3-dihydro-1,3,4-oxadiazol-2-one (7c, 0.29 g, 1 mmol) on reacting with 5-nitro2-furaldehyde in the presence of catalytic amount of CH3COOH (3 drops) in methanol at 0° C. for 10 h and the obtained solid is filtered, washed with water and recrystallized in ethanol to obtain product 3-ethyl-5-[1-(4-[(E)-1-(5-nitro-2-furyl)methylidene]aminophenyl)-4-piperidyl]-2,3-dihydro-1,3,4-oxadiazol-2-one (9c, 357 mg, 87%).

후처리

  1. filtrationthe obtained solid is filtered
  2. washwashed with water
  3. customrecrystallized in ethanol

출처 및 근거

ORD 기록
ord-e643efba0fb8467399d0eec2be93c1dd
출처 데이터셋
uspto-grants-2015_08
특허 번호
US09108960B2

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