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Potassium Carbonate → HCID 89690245, Verbindung

HRID 517926
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 517926
Cl[C:2]1[CH:25]=[N:24][C:5]2=[N:6][C:7]([C:17]3[CH:22]=[CH:21][C:20]([CH3:23])=[CH:19][CH:18]=3)=[C:8]([C:10]3[CH:15]=[CH:14][C:13]([CH3:16])=[CH:12][CH:11]=3)[N:9]=[C:4]2[CH:3]=1.[CH2:26](B(O)O)[CH3:27].C([O-])([O-])=O.[K+].[K+]>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>[CH2:26]([C:2]1[CH:25]=[N:24][C:5]2=[N:6][C:7]([C:17]3[CH:18]=[CH:19][C:20]([CH3:23])=[CH:21][CH:22]=3)=[C:8]([C:10]3[CH:15]=[CH:14][C:13]([CH3:16])=[CH:12][CH:11]=3)[N:9]=[C:4]2[CH:3]=1)[CH3:27]
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

5

Edukt 3

HCID 11430Potassium CarbonateHCID 521157Ethylboronic acidHCID 666663497-Chloro-2,3-dip-tolylpyrido[2,3-b]pyrazine

Produkt 1

HCID 89690245HCID 89690245, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 178418397HCID 178418397, VerbindungKatalysator

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

A mixture comprising 7-chloro-2,3-di-p-tolylpyrido[2,3-b]pyrazine (step 1) (2.5 g, 7.24 mmol), ethyl boronic acid (0.748 g, 10.14 mmol) and K2CO3 (2.9 g, 21.73 mmol) was degassed with argon and treated with Pd(PPh3)4(0.418 g, 0.362 mmol). The resulting mixture was flushed with argon and heated at 100° C. for 12 h and heating continued overnight. The reaction mixture was diluted with water and extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulphate and concentrated under vacuum. Purification of the crude product by chromatography on silica eluting with 10% EtOAc in hexane afforded the titled compound;

Aufarbeitung

  1. customThe resulting mixture was flushed with argon
  2. temperatureheating
  3. additionThe reaction mixture was diluted with water
  4. extractionextracted with ethyl acetate
  5. dry with materialThe organic layer was dried over anhydrous sodium sulphate
  6. concentrationconcentrated under vacuum
  7. customPurification of the crude product by chromatography on silica eluting with 10% EtOAc in hexane

Quellen und Nachweise

ORD-Eintrag
ord-c776e78639fe426497427938e228887b
Quelldatensatz
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09115129B2

Notizen zur Reaktion

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