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Triethylamine → 4-bromo-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1-(pyridin-2-ylmethyl)-1,3-dihydro-2H-indol-2-one

HRID 545756
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 545756
[Br:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[C:4](O)([C:19]1[C:20]([OH:28])=[CH:21][C:22]3[O:26][CH2:25][CH2:24][C:23]=3[CH:27]=1)[C:5](=[O:18])[N:6]2[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][N:13]=1.C(N(CC)CC)C.O=S(Cl)Cl>ClCCl.C(O)(=O)C.O1CCCC1.[Zn]>[Br:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[CH:4]([C:19]1[C:20]([OH:28])=[CH:21][C:22]3[O:26][CH2:25][CH2:24][C:23]=3[CH:27]=1)[C:5](=[O:18])[N:6]2[CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][N:13]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 3

HCID 8471TriethylamineHCID 24386Thionyl ChlorideHCID 588725084-bromo-3-hydroxy-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1-(pyridin-2-ylmethyl)-1,3-dihydro-2H-indol-2-one

Produkt 1

HCID 588724584-bromo-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1-(pyridin-2-ylmethyl)-1,3-dihydro-2H-indol-2-oneAusbeute 138,3 %

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 23994
Zinc
Katalysator
HCID 6344DichloromethaneLösungsmittel
HCID 23444217Acetic acid tetrahydrofuranLösungsmittel

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

To a solution of 4-bromo-3-hydroxy-3-(6-hydroxy-2,3-dihydro-1-benzofuran-5-yl)-1-(pyridin-2-ylmethyl)-1,3-dihydro-2H-indol-2-one (1.12 g, 2.48 mmol) in anhydrous dichloromethane (25.0 mL) was added triethylamine (1.40 mL, 9.91 mmol) and SOCl2 (0.40 mL, 4.96 mmol) at 0° C. The reaction mixture was stirred at 0° C. for 2 h and quenched with water (30.0 mL). The organic layer was separated, washed with water (3×30.0 mL), dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated in vacuo to dryness to give a gummy material. The residue was dissolved in acetic acid/tetrahydrofuran (3.00 mL/22.0 mL) followed by the addition of zinc dust (0.81 g, 12.4 mmol) in one portion. The reaction mixture was stirred at ambient temperature for 16 h. After the solid was filtered, the solvent was removed in vacuo. The residue was dissolved in ethyl acetate (100 mL), washed with water (3×30.0 mL), dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated in vacuo to dryness to give the title compound (1.50 g, 77%) as a gummy material: MS (ES+) m/z 437.3 (M+1).

Aufarbeitung

  1. customquenched with water (30.0 mL)
  2. customThe organic layer was separated
  3. washwashed with water (3×30.0 mL)
  4. dry with materialdried over anhydrous sodium sulfate
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated in vacuo to dryness
  7. customto give a gummy material
  8. stirringThe reaction mixture was stirred at ambient temperature for 16 h
  9. filtrationAfter the solid was filtered
  10. customthe solvent was removed in vacuo
  11. dissolutionThe residue was dissolved in ethyl acetate (100 mL)
  12. washwashed with water (3×30.0 mL)
  13. dry with materialdried over anhydrous sodium sulfate
  14. filtrationfiltered
  15. concentrationThe filtrate was concentrated in vacuo to dryness

Quellen und Nachweise

ORD-Eintrag
ord-bea4146c22da4ad1a15b429678a11a67
Quelldatensatz
uspto-grants-2011_05
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07935721B2

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