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Potassium Carbonate → 4-(Adamantan-1-ylmethoxy)-3-(2-methoxypyridin-3-yl)benzonitrile

HRID 1849499
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1849499
[C:1]12([CH2:11][O:12][C:13]3[CH:20]=[CH:19][C:16]([C:17]#[N:18])=[CH:15][C:14]=3Br)[CH2:10][CH:5]3[CH2:6][CH:7]([CH2:9][CH:3]([CH2:4]3)[CH2:2]1)[CH2:8]2.C(=O)([O-])[O-].[K+].[K+].[CH3:28][O:29][C:30]1[C:35](B(O)O)=[CH:34][CH:33]=[CH:32][N:31]=1>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[C:1]12([CH2:11][O:12][C:13]3[CH:20]=[CH:19][C:16]([C:17]#[N:18])=[CH:15][C:14]=3[C:35]3[C:30]([O:29][CH3:28])=[N:31][CH:32]=[CH:33][CH:34]=3)[CH2:10][CH:5]3[CH2:6][CH:7]([CH2:9][CH:3]([CH2:4]3)[CH2:2]1)[CH2:8]2
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 11430Potassium CarbonateHCID 2762709(2-Methoxypyridin-3-yl)boronic acidHCID 867028434-(Adamantan-1-ylmethoxy)-3-bromobenzonitrile

Produkt 1

HCID 867028444-(Adamantan-1-ylmethoxy)-3-(2-methoxypyridin-3-yl)benzonitrileAusbeute 98,8 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397
HCID 178418397, Verbindung
Katalysator
HCID 312751,4-DioxaneLösungsmittel

Reaktionsbedingungen

Temperatur
90 °C

Versuchsvorschrift

A reaction mixture of 4-(adamantan-1-ylmethoxy)-3-bromobenzonitrile (1.04 g, 3.00 mmol), potassium carbonate (1.00 g, 7.20 mmol) and (2-methoxypyridin-3-yl)boronic acid (0.92 g, 6.00 mmol) in dioxane (30 mL) was degassed three times with nitrogen, then tetrakis(triphenylphosphine)palladium(0) (0.18 g, 0.15 mmol) was added and the reaction mixture was degassed three further times with nitrogen. The resulting mixture was heated at 90° C. for 19 h, and then the reaction was cooled to ambient temperature, (2-methoxypyridin-3-yr)boronic acid (0.46 g, 3.00 mmol) and tetrakis(triphenylphosphfne)-pailadium(0) (0.09 g, 0.08 mmol) were added and the reaction was degassed three times with nitrogen and heated at 90° C. for further 7 h. After cooling to ambient temperature, the reaction mixture was diluted with ethyl acetate (200 mL) and washed with water and brine; dried over anhydrous sodium sulfate and concentrated in vacuo. Purification of the residue by column chromatography (15% ethyl acetate in hexanes) afforded the title compound as a colorless solid (1.11 g, 98%): 1H NMR (300 MHz, CDCl3) δ 8.20-8.16 (m, 1H), 7.62-7.48 (m, 3H), 6.96-6.91 (m, 2H), 3.87 (s, 3H), 3.48 (s, 2H), 1.89 (br s, 3H), 1.68-1.35 (m, 12H); MS (ES+) m/z: 375.2, (M+1).

Aufarbeitung

  1. customwas degassed three times with nitrogen
  2. customthe reaction mixture was degassed three further times with nitrogen
  3. temperaturethe reaction was cooled to ambient temperature
  4. customthe reaction was degassed three times with nitrogen
  5. temperatureheated at 90° C. for further 7 h
  6. temperatureAfter cooling to ambient temperature
  7. additionthe reaction mixture was diluted with ethyl acetate (200 mL)
  8. washwashed with water and brine
  9. dry with materialdried over anhydrous sodium sulfate
  10. concentrationconcentrated in vacuo
  11. customPurification of the residue by column chromatography (15% ethyl acetate in hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-a493295be30048ae92b83ae3ef84dba0
Quelldatensatz
uspto-grants-2015_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08952169B2

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