Water → 1-Methoxy-2-methyl-4-nitrobenzene

HRID 866006

Reaktionsgleichung

Reaktionsgleichung von HRID 866006
[CH3:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[O:8][CH3:9].F[B-](F)(F)F.[O:15]=[N+:16]=[O:17].O>ClCCl>[CH3:1][C:2]1[CH:7]=[C:6]([N+:16]([O-:17])=[O:15])[CH:5]=[CH:4][C:3]=1[O:8][CH3:9]

Komponenten

5

Edukt 3

HCID 962WaterHCID 336372-MethylanisoleHCID 11073463Nitronium tetrafluoroborate

Produkt 1

HCID 6435201-Methoxy-2-methyl-4-nitrobenzene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

2-Methylanisole (20 g) in 500 ml dichloromethane chilled in an ice bath is treated with 27.2 g of nitronium tetrafluoroborate and stirred two days. The mixture is poured into water, the layers are separated, and the aqueous phase is washed with dichloromethane. The combined organic layers are dried, filtered, stripped, and chromatographed on silica gel with 9:1 to 8:2 hexane:ethyl acetate to give 2-methyl-4-nitroanisole. NMR (CDCl3): δ2.3 (3H,s), 3.9 (3H,s), 6.9 (1H,d), 8.0 (1H,d), 8.1 (1H,d of d).

Aufarbeitung

  1. customthe layers are separated
  2. washthe aqueous phase is washed with dichloromethane
  3. customThe combined organic layers are dried
  4. filtrationfiltered
  5. customchromatographed on silica gel with 9:1 to 8:2 hexane

Quellen und Nachweise

ORD-Eintrag
ord-2a846899eb76410098f234781abe39dc
Quelldatensatz
uspto-grants-1996_10
Patentnummer
US05569674

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