Water → 6-(Furan-2-yl)-oxindole

HRID 2415088ノート

反応式

HRID 2415088 の反応式
Br[C:2]1[CH:10]=[C:9]2[C:5]([CH2:6][C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1.[OH2:12]>O.[Cl-].C([N+](CC)(CC)CC)C.C(#N)C.[Pd].Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[O:12]1[CH:4]=[CH:3][CH:2]=[C:10]1[C:2]1[CH:10]=[C:9]2[C:5]([CH2:6][C:7](=[O:11])[NH:8]2)=[CH:4][CH:3]=1

参加物

7

反応物 2

HCID 962WaterHCID 27732896-bromo-2,3-dihydro-1H-indol-2-one

生成物 1

HCID 219070396-(Furan-2-yl)-oxindole

試薬・触媒・溶媒 4

HCID 23938Palladium触媒HCID 16211205Tetraethylammonium chloride monohydrate触媒HCID 178418476HCID 178418476、化合物触媒HCID 6342Acetonitrile溶媒

反応条件

温度
85 °C

実験手順

6-Bromo-oxindole (0.40 g, 1.88 mmol), 2-tributyltinfuran (0.71 mL, 2.26 mmol), and tetraethylammonium chloride hydrate (0.31 g, 1.88 mmol) were combined and dissolved in acetonitrile (15 mL). The palladium catalyst, bistriphenylphosphinedichloropalladium (II) (0.66 g, 0.09 mmol) was added and the reaction was warmed to 85° C. under nitrogen for 20 h. The reaction was cooled to room temperature and diluted with water (15 mL) before passing the mixture through celite. The pad of celite was washed with EtOAc and the filtrates were combined and separated. The aqueous layer was washed with EtOAc (2×20 mL each). The combined organic phases were washed with brine and dried over sodium sulfate. The volatiles ere removed in vacuo. The resulting residue was triturated with diethyl ether and the solid was collected by filtration (0.13 g, 34%). 1H NMR 300 MHz (DMSO-d6) δ10.5 (s, 1H); 7.75 (s, 1H); 7.30 (m, 2H); 7.11 (s, 1H); 6.91 (m, 1H); 6.60 (m,1H); 3.52 (s, 2H).

後処理

  1. temperatureThe reaction was cooled to room temperature
  2. washThe pad of celite was washed with EtOAc
  3. customseparated
  4. washThe aqueous layer was washed with EtOAc (2×20 mL each)
  5. washThe combined organic phases were washed with brine
  6. dry with materialdried over sodium sulfate
  7. customThe volatiles ere removed in vacuo
  8. customThe resulting residue was triturated with diethyl ether
  9. filtrationthe solid was collected by filtration (0.13 g, 34%)

出典と根拠

ORDレコード
ord-9442476d1aa046079b7b1f9cb7adbfd5
出典データセット
uspto-grants-2004_11
特許番号
US06818632B2

反応ノート

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