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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
ノート
印刷プレビュー

反応式

HRID 35183 の反応式
[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]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

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

生成物 1

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

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

実験手順

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.

後処理

  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.

出典と根拠

ORDレコード
ord-53bea2c0b3cd48bb9625a2568a757434
出典データセット
uspto-grants-1988_08
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US04766118

反応ノート

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