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3-Nitrophenol → Nitro-3-[2-(4-cyanophenyl)ethoxy]benzene

HRID 325027
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 325027
C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CCOC(/N=N/C(OCC)=O)=O.[N+:32]([C:35]1[CH:36]=[C:37]([OH:41])[CH:38]=[CH:39][CH:40]=1)([O-:34])=[O:33].[C:42]([C:44]1[CH:49]=[CH:48][C:47]([CH2:50][CH2:51]O)=[CH:46][CH:45]=1)#[N:43]>C1COCC1.O>[N+:32]([C:35]1[CH:40]=[CH:39][CH:38]=[C:37]([O:41][CH2:51][CH2:50][C:47]2[CH:48]=[CH:49][C:44]([C:42]#[N:43])=[CH:45][CH:46]=2)[CH:36]=1)([O-:34])=[O:33]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

7

Edukt 4

HCID 111373-NitrophenolHCID 11776TriphenylphosphineHCID 28008154-(2-Hydroxyethyl)benzonitrileHCID 5462977Diethyl azodicarboxylate

Produkt 1

HCID 22033514Nitro-3-[2-(4-cyanophenyl)ethoxy]benzeneAusbeute 32 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 962
Water
Lösungsmittel
HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

Triphenylphosphine (11.3 g; 43.1 mmol) and diethylazodicarboxylate (7.5 g; 43 mmol) were dissolved in THF (250 mL) under nitrogen at 0° C. After 5 minutes, 3-nitrophenol (5.00 g; 35.9 mmol) and 2-(4-cyanophenyl)ethanol (6.3 g; 43 mmol) were added. The cooling bath was removed and the mixture stirred for 2 days at room temperature. A new batch was prepared as above and the two were combined before work-up. Water was added and the THF was evaporated. The mixture was extracted with EtOAc, and the organic phase was washed with aqueous 0.2M NaOH and brine, dried (Na2SO4) and the solvent removed in vacuo. Purification by flash chromatography (SiO2; toluene) and recrystallization from CH2Cl2:EtOH afforded 3.07 g (32%) of the sub-title compound.

Aufarbeitung

  1. customThe cooling bath was removed
  2. customA new batch was prepared as above and the two
  3. customthe THF was evaporated
  4. extractionThe mixture was extracted with EtOAc
  5. washthe organic phase was washed with aqueous 0.2M NaOH and brine
  6. dry with materialdried (Na2SO4)
  7. customthe solvent removed in vacuo
  8. customPurification
  9. customby flash chromatography (SiO2; toluene) and recrystallization from CH2Cl2

Quellen und Nachweise

ORD-Eintrag
ord-5a2211590a334c419b0a814e788018ae
Quelldatensatz
uspto-grants-2001_04
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US06221898B1

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