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Toluene → 1-Fluoro-3-nitro-2-(3,3,5,5-tetramethylcyclohex-1-enyl)benzene

HRID 2218879
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2218879
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([N+:8]([O-:10])=[O:9])[C:3]=1OS(C(F)(F)F)(=O)=O.CC1(C)C(C)(C)OB([C:27]2[CH2:32][C:31]([CH3:34])([CH3:33])[CH2:30][C:29]([CH3:36])([CH3:35])[CH:28]=2)O1.C1(C)C=CC=CC=1.C(=O)([O-])[O-].[Na+].[Na+]>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.C(OCC)(=O)C.O.C(O)C>[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([N+:8]([O-:10])=[O:9])[C:3]=1[C:27]1[CH2:32][C:31]([CH3:34])([CH3:33])[CH2:30][C:29]([CH3:36])([CH3:35])[CH:28]=1
KomponentenReaktionsbedingungenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

9

Edukt 4

HCID 1140TolueneHCID 10340Sodium CarbonateHCID 200290852-Fluoro-6-nitrophenyl TrifluoromethanesulfonateHCID 231420594,4,5,5-Tetramethyl-2-(3,3,5,5-tetramethylcyclohex-1-en-1-yl)-1,3,2-dioxaborolane

Produkt 1

HCID 231415691-Fluoro-3-nitro-2-(3,3,5,5-tetramethylcyclohex-1-enyl)benzeneAusbeute 81,1 %

Reagenzien, Katalysatoren, Lösungsmittel 4

HCID 178418397HCID 178418397, VerbindungKatalysatorHCID 702EthanolLösungsmittelHCID 962WaterLösungsmittel2×HCID 8857Ethyl AcetateLösungsmittel2×

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

To a mixture of trifluoromethanesulfonic acid 2-fluoro-6-nitrophenyl ester (2.89 g, 10 mmol) produced in Example (97a), 4,4,5,5-tetramethyl-2-(3,3,5,5-tetramethylcyclohex-1-enyl)[1,3,2]dioxaborolane (3.17 g, 12 mmol) produced in Example (4b), toluene (30 mL) and ethanol (15 mL) were added sodium carbonate (1.6 g, 15.1 mmol), purified water (0.9 mL) and tetrakis(triphenylphosphine)palladium(0) (1.15 g, 1 mmol), followed by stirring for 2 hours at an external temperature of 100° C. under a nitrogen atmosphere. Ethyl acetate and water were added to the reaction mixture and extraction was performed with ethyl acetate. The separated organic layer was washed with brine and then dried over anhydrous sodium sulfate. The desiccant was filtered off and the filtrate was concentrated under reduced pressure. The resultant residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give 2.25 g of the title compound as a light yellow oil.

Aufarbeitung

  1. washThe separated organic layer was washed with brine
  2. dry with materialdried over anhydrous sodium sulfate
  3. filtrationThe desiccant was filtered off
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customThe resultant residue was purified by silica gel column chromatography (ethyl acetate/hexane)

Quellen und Nachweise

ORD-Eintrag
ord-9fb074eea30a4879b89504028b06b949
Quelldatensatz
uspto-grants-2008_08
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US07410971B2

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