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Water → 2-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-8-(neopentyloxy)quinoline

HRID 2035561
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Reaktionsgleichung

Reaktionsgleichung von HRID 2035561
[N:1]1[N:2]=[C:3]([C:10]2[CH:19]=[CH:18][C:17]3[C:12](=[C:13]([OH:20])[CH:14]=[CH:15][CH:16]=3)[N:11]=2)[N:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12.C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:27](I)[C:28]([CH3:31])([CH3:30])[CH3:29].O>CC(N(C)C)=O>[N:1]1[N:2]=[C:3]([C:10]2[CH:19]=[CH:18][C:17]3[C:12](=[C:13]([O:20][CH2:27][C:28]([CH3:31])([CH3:30])[CH3:29])[CH:14]=[CH:15][CH:16]=3)[N:11]=2)[N:4]2[CH:9]=[CH:8][CH:7]=[CH:6][C:5]=12
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Komponenten

6

Edukt 4

HCID 962WaterHCID 10796Cesium carbonateHCID 84953Propane, 1-iodo-2,2-dimethyl-HCID 136337804HCID 136337804, Verbindung

Produkt 1

HCID 583036472-([1,2,4]Triazolo[4,3-a]pyridin-3-yl)-8-(neopentyloxy)quinolineAusbeute 49,1 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 31374
Dimethylacetamide
Lösungsmittel

Versuchsvorschrift

To a solution of 2-([1,2,4]triazolo[4,3-a]pyridin-3-yl)quinolin-8-ol (100 mg, 0.38 mmol), Example 1, Step D, in anhydrous DMA (2 mL) was added cesium carbonate (373 mg, 1.14 mmol) followed by neopentyl iodide (101 μL, 0.76 mmol). The heterogeneous mixture was stirred at ambient temperature for 2 hours then at 100° C. for 16 hours. The cooled mixture was treated with water (30 mL) and extracted with EtOAc (3×20 mL). The combined organic phases were washed with water and brine, dried over Na2SO4 and concentrated to afford a cream-colored solid. This was triturated with ether and the resulting solid collected by filtration and dried in vacuo to provide desired product (62 mg, 49%) as a white powder. MS ESI (+) m/z 333.3 (M+1) detected.

Aufarbeitung

  1. waitat 100° C. for 16 hours
  2. extractionextracted with EtOAc (3×20 mL)
  3. washThe combined organic phases were washed with water and brine
  4. dry with materialdried over Na2SO4
  5. concentrationconcentrated
  6. customto afford a cream-colored solid
  7. customThis was triturated with ether
  8. filtrationthe resulting solid collected by filtration
  9. customdried in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-45f4fd0f1294467cac6f984619ecfc52
Quelldatensatz
uspto-grants-2013_11
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08575145B2

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