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Hydrochloric Acid → 1-(5-Bromo-2-methoxy phenyl)-N-(isoxazol-3-yl)-2-oxo-1,2-dihydroquinoline-6-sulfonamide

HRID 1504439
ノート
印刷プレビュー

反応式

HRID 1504439 の反応式
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([O:34][CH3:35])=[C:6]([N:8]2[C:17]3[C:12](=[CH:13][C:14]([S:18](OC4C(F)=C(F)C(F)=C(F)C=4F)(=[O:20])=[O:19])=[CH:15][CH:16]=3)[CH:11]=[CH:10][C:9]2=[O:33])[CH:7]=1.[O:36]1[CH:40]=[CH:39][C:38]([NH2:41])=[N:37]1.C[Si]([N-][Si](C)(C)C)(C)C.[Li+].Cl>C1COCC1>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([O:34][CH3:35])=[C:6]([N:8]2[C:17]3[C:12](=[CH:13][C:14]([S:18]([NH:41][C:38]4[CH:39]=[CH:40][O:36][N:37]=4)(=[O:20])=[O:19])=[CH:15][CH:16]=3)[CH:11]=[CH:10][C:9]2=[O:33])[CH:7]=1
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 313Hydrochloric AcidHCID 18102163-IsoxazolamineHCID 2733832Lithium hexamethyldisilazaneHCID 117736973Perfluorophenyl 1-(5-bromo-2-methoxyphenyl)-2-oxo-1,2-dihydroquinoline-6-sulfonate

生成物 1

HCID 1177371161-(5-Bromo-2-methoxy phenyl)-N-(isoxazol-3-yl)-2-oxo-1,2-dihydroquinoline-6-sulfonamide収率 87%

試薬・触媒・溶媒 1

HCID 8028Tetrahydrofuran溶媒

反応条件

温度
0 °C

実験手順

To a RBF was added perfluorophenyl 1-(5-bromo-2-methoxyphenyl)-2-oxo-1,2-dihydroquinoline-6-sulfonate (5.92 g, 10.27 mmol) and THF (103 ml). Isoxazol-3-amine (0.950 g, 11.36 mmol) was added, and the reaction was cooled to 0° C. Lithium bis(trimethylsilyl)amide (1.0M in THF) (21.57 ml, 21.57 mmol) was added drop wise (reaction turned from clear solution to bright yellow suspension) and the reaction was allowed to stir in the ice bath for 1 h. The reaction was warmed to RT, and 1N HCl was added. The product was extracted with EtOAc (×3), and the resulting organics were dried with MgSO4 and concentrated in vacuo. The resulting light yellow solid was triturated in diethyl ether and filtered over a fine frit, rinsing with minimal ether, to yield 1-(5-bromo-2-methoxyphenyl)-N-(isoxazol-3-yl)-2-oxo-1,2-dihydroquinoline-6-sulfonamide (4.245 g, 8.91 mmol, 87% yield) as an off-white solid. MS (ESI, pos. ion) m/z: [M+1] 476.1

後処理

  1. customdrop wise (reaction turned from clear solution to bright yellow suspension)
  2. temperatureThe reaction was warmed to RT
  3. extractionThe product was extracted with EtOAc (×3)
  4. dry with materialthe resulting organics were dried with MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe resulting light yellow solid was triturated in diethyl ether
  7. filtrationfiltered over a fine frit
  8. washrinsing with minimal ether

出典と根拠

ORDレコード
ord-00250883797146a0b8ff191b6c08b9ec
出典データセット
uspto-grants-2015_12
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09212182B2

反応ノート

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このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート