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Sodium Carbonate → 3-(2-Methoxy-pyridin-3-yl)-phenylamine

HRID 240148
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 240148
O.[CH3:2][O:3][C:4]1[C:9](B(O)O)=[CH:8][CH:7]=[CH:6][N:5]=1.Br[C:14]1[CH:15]=[C:16]([CH:18]=[CH:19][CH:20]=1)[NH2:17].C([O-])([O-])=O.[Na+].[Na+]>COCCOC.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>[CH3:2][O:3][C:4]1[C:9]([C:14]2[CH:15]=[C:16]([NH2:17])[CH:18]=[CH:19][CH:20]=2)=[CH:8][CH:7]=[CH:6][N:5]=1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 10340Sodium CarbonateHCID 115623-BromoanilineHCID 441197962-Methoxypyridine-3-boronic acid hydrate

Produkt 1

HCID 668655223-(2-Methoxy-pyridin-3-yl)-phenylamineAusbeute 80 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 178418397HCID 178418397, VerbindungKatalysator
HCID 80711,2-DimethoxyethaneLösungsmittel

Versuchsvorschrift

2-methoxypyridine-3-boronic acid hydrate (0.133 g, 0.872 mmol) and 3-bromoaniline (0.063 mL, 0.581 mmol) were combined in DME (3 mL) in a flame-dried, round-bottom flask. Na2CO3 (2M, 0.610 mL, 1.22 mmol) and Pd(PPh3)4 (0.02 g, 0.017 mmol) were added to the stirred solution. The reaction was refluxed overnight under argon flow, and subsequently cooled to room temperature. The solvent was removed under vacuum and the resulting residue was resuspended in CH2Cl2. The organic phase was dried over MgSO4, filtered, and concentrated under vacuum. The crude product was purified by flash silica column chromatography (10-100% EtOAc/hexanes). The purification was monitored by TLC. The solvent was removed under vacuum from fractions containing product, resulting in 0.092 g in 80% yield.

Aufarbeitung

  1. temperatureThe reaction was refluxed overnight under argon flow
  2. customThe solvent was removed under vacuum
  3. dry with materialThe organic phase was dried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated under vacuum
  6. customThe crude product was purified by flash silica column chromatography (10-100% EtOAc/hexanes)
  7. customThe purification
  8. customThe solvent was removed under vacuum from fractions
  9. additioncontaining product
  10. customresulting in 0.092 g in 80% yield

Quellen und Nachweise

ORD-Eintrag
ord-80e692d921e0400fb8a5dc9073d30dd1
Quelldatensatz
uspto-grants-2014_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08642788B2

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