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Potassium Carbonate → 3-(1-ethyl-1H-pyrazol-4-yl)-6-(6-methyl-[1,2,4]triazolo[4,3-b]pyridazin-3-ylsulfanyl)-quinoline

HRID 1890969
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 1890969
Br[C:2]1[CH:3]=[N:4][C:5]2[C:10]([CH:11]=1)=[CH:9][C:8]([S:12][C:13]1[N:17]3[N:18]=[C:19]([CH3:22])[CH:20]=[CH:21][C:16]3=[N:15][N:14]=1)=[CH:7][CH:6]=2.[CH2:23]([N:25]1[CH:29]=[C:28](B2OC(C)(C)C(C)(C)O2)[CH:27]=[N:26]1)[CH3:24].C([O-])([O-])=O.[K+].[K+].O1CCOCC1>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2].ClCCl.O>[CH2:23]([N:25]1[CH:29]=[C:28]([C:2]2[CH:3]=[N:4][C:5]3[C:10]([CH:11]=2)=[CH:9][C:8]([S:12][C:13]2[N:17]4[N:18]=[C:19]([CH3:22])[CH:20]=[CH:21][C:16]4=[N:15][N:14]=2)=[CH:7][CH:6]=3)[CH:27]=[N:26]1)[CH3:24]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 11430Potassium CarbonateHCID 312751,4-DioxaneHCID 113790451-Ethyl-1H-pyrazole-4-boronic acid, pinacol esterHCID 249009763-Bromo-6-(6-methyl-[1,2,4]triazolo[4,3-b]pyridazin-3-ylsulfanyl)-quinoline

Produkt 1

HCID 249012593-(1-ethyl-1H-pyrazol-4-yl)-6-(6-methyl-[1,2,4]triazolo[4,3-b]pyridazin-3-ylsulfanyl)-quinoline
Ausbeute 7 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418807HCID 178418807, VerbindungKatalysatorHCID 962WaterLösungsmittel

Versuchsvorschrift

To a microwave vessel was added 3-bromo-6-(6-methyl-[1,2,4]triazolo[4,3-b]pyridazin-3-ylsulfanyl)-quinoline (200 mg, 0.54 mmol), 1-ethyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (149 mg, 0.67 mmol), K2CO3 (186 mg, 1.34 mmol), 1,4-dioxane (7 mL) and water (3.5 mL). The solution was degassed by bubbling nitrogen for 10 min and then Pd(dppf)2Cl2 dichloromethane (20 mg, 0.0269 mmol) was added. The microwave vessel was capped and reacted in a microwave reactor at 120° C. for 20 min. The microwave vessel was cooled and then the mixture was extracted into dichloromethane and washed with water. The volatiles were removed in vacuo and the residue absorbed onto silica gel and purified by flash chromatography (SiO2, dichloromethane:CH3OH 100:0-80:20) to obtain 3-(1-ethyl-1H-pyrazol-4-yl)-6-(6-methyl-[1,2,4]triazolo[4,3-b]pyridazin-3-ylsulfanyl)-quinoline as a brown oil (7% yield).

Aufarbeitung

  1. customThe solution was degassed
  2. customby bubbling nitrogen for 10 min
  3. customThe microwave vessel was capped
  4. customreacted in a microwave reactor at 120° C. for 20 min
  5. temperatureThe microwave vessel was cooled
  6. extractionthe mixture was extracted into dichloromethane
  7. washwashed with water
  8. customThe volatiles were removed in vacuo
  9. customthe residue absorbed onto silica gel
  10. custompurified by flash chromatography (SiO2, dichloromethane:CH3OH 100:0-80:20)

Quellen und Nachweise

ORD-Eintrag
ord-e2eb95305ae6416b8da4b7a6ea7909be
Quelldatensatz
uspto-grants-2013_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08507489B2

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