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Triethylamine → 6-(3,4-Dihydro-4-(3,4-dimethoxyphenylcarbonyl)-1,4(2H)-benzoxazin-6-yl)-2,3,4,5-tetrahydropyridazin-3-one

HRID 35183
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HRID 35183 반응식
[O:1]1[C:6]2[CH:7]=[CH:8][C:9]([C:11]3[CH2:12][CH2:13][C:14](=[O:17])[NH:15][N:16]=3)=[CH:10][C:5]=2[NH:4][CH2:3][CH2:2]1.C(N(CC)CC)C.[CH3:25][O:26][C:27]1[CH:28]=[C:29]([CH:33]=[CH:34][C:35]=1[O:36][CH3:37])[C:30](Cl)=[O:31]>C(Cl)Cl>[CH3:25][O:26][C:27]1[CH:28]=[C:29]([C:30]([N:4]2[C:5]3[CH:10]=[C:9]([C:11]4[CH2:12][CH2:13][C:14](=[O:17])[NH:15][N:16]=4)[CH:8]=[CH:7][C:6]=3[O:1][CH2:2][CH2:3]2)=[O:31])[CH:33]=[CH:34][C:35]=1[O:36][CH3:37]
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 77070Veratroyl chlorideHCID 155994076-(3,4-Dihydro-1,4(2H)-benzoxazin-6-yl)-2,3,4,5-tetrahydropyridazin-3-one

생성물 1

HCID 155994096-(3,4-Dihydro-4-(3,4-dimethoxyphenylcarbonyl)-1,4(2H)-benzoxazin-6-yl)-2,3,4,5-tetrahydropyridazin-3-one

시약·촉매·용매 1

HCID 6344Dichloromethane용매

실험 절차

6-(3,4-Dihydro-1,4(2H)-benzoxazin-6-yl)-2,3,4,5-tetrahydropyridazin-3-one was dissolved in methylene chloride and 1.1 equivalent of triethylamine. 1.1 equivalent of 3,4-dimethoxybenzoylchloride was added and the mixture heated at reflux for four hours. The solution was washed with sodium bicarbonate solution and then evaporated to dryness. The residue was chromatographed on silica gel eluting with 1:1 ethyl acetate:ethyl ether. The title compound was collected as white needles, mp 207°-208° C.

후처리

  1. temperaturethe mixture heated
  2. temperatureat reflux for four hours
  3. washThe solution was washed with sodium bicarbonate solution
  4. customevaporated to dryness
  5. customThe residue was chromatographed on silica gel eluting with 1:1 ethyl acetate
  6. customThe title compound was collected as white needles, mp 207°-208° C.

출처 및 근거

ORD 기록
ord-53bea2c0b3cd48bb9625a2568a757434
출처 데이터셋
uspto-grants-1988_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US04766118

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