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Sodium Chloride → 2-Bromo-1-(cyclopropylmethoxy)-3-methyl-4-nitrobenzene

HRID 633528
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 633528
[Br:1][C:2]1[C:7]([CH3:8])=[C:6]([N+:9]([O-:11])=[O:10])[CH:5]=[CH:4][C:3]=1[OH:12].Br[CH2:14][CH:15]1[CH2:17][CH2:16]1.C(=O)([O-])[O-].[Cs+].[Cs+].[Cl-].[Na+]>CN(C)C=O.C(OCC)(=O)C>[Br:1][C:2]1[C:7]([CH3:8])=[C:6]([N+:9]([O-:11])=[O:10])[CH:5]=[CH:4][C:3]=1[O:12][CH2:14][CH:15]1[CH2:17][CH2:16]1
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 5234Sodium ChlorideHCID 10796Cesium carbonateHCID 81503BromomethylcyclopropaneHCID 45584722-Bromo-3-methyl-4-nitrophenol

Produkt 1

HCID 867049572-Bromo-1-(cyclopropylmethoxy)-3-methyl-4-nitrobenzeneAusbeute 87,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6228
Dimethylformamide
Lösungsmittel
HCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

A flask with stirbar was charged with 2-bromo-3-methyl-4-nitrophenol (Parkway Scientific, 1.15 g, 4.96 mmol), (bromomethyl)cyclopropane (0.60 mL, 6.19 mmol) and cesium carbonate (2.65 g, 8.13 mmol) in dimethylformamide (16 mL). The mixture was stirred overnight at ambient temperature. The mixture was then heated to 50° C. in an oil bath. After 3 hours, the mixture was cooled and shaken in a separatory funnel with 100 mL each of ethyl acetate and saturated aqueous sodium chloride. The organics were washed twice with saturated aqueous sodium chloride, dried over sodium sulfate, filtered, and concentrated. The crude product was purified by flash chromatography (silica gel, 0-30% ethyl acetate in hexanes) to provide 1.24 g (87%) of the title compound

Aufarbeitung

  1. temperatureThe mixture was then heated to 50° C. in an oil bath
  2. waitAfter 3 hours
  3. temperaturethe mixture was cooled
  4. washThe organics were washed twice with saturated aqueous sodium chloride
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe crude product was purified by flash chromatography (silica gel, 0-30% ethyl acetate in hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-026e7cc581284e2481e6449c2adaca50
Quelldatensatz
uspto-grants-2016_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09321764B2

Notizen zur Reaktion

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