1-Bromo-2-fluorobenzene → 2,4-diphenyl-N-2-fluorophenylbenzenamine

HRID 75074

Reaktionsgleichung

Reaktionsgleichung von HRID 75074
[C:1]1([C:7]2[CH:13]=[C:12]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH:11]=[CH:10][C:8]=2[NH2:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Br[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=1[F:27].[Na]>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:1]1([C:7]2[CH:13]=[C:12]([C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)[CH:11]=[CH:10][C:8]=2[NH:9][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][C:22]=2[F:27])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Komponenten

6

Edukt 3

HCID 612591-Bromo-2-fluorobenzeneHCID 5360545SodiumHCID 123166382,4-Diphenylaniline

Produkt 1

HCID 593575922,4-diphenyl-N-2-fluorophenylbenzenamineAusbeute 61,9 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 1140TolueneLösungsmittel2×

Reaktionsbedingungen

Temperatur
100 °C

Versuchsvorschrift

2,4-diphenylaniline (12 mmol), 1-bromo-2-fluorobenzene (10 mmol), tris(dibenzylideneacetone)dipalladium(0) (0.15 mmol), (±)-2,2′-bis(diphenylphosphine)-1,1′-binaphthalene (0.3 mmol) and sodium tert-butoxie (14 mmol) are put in a two-neck round-bottom flask and dissolved in toluene (30 mL). Subsequently, the resulting solution is stirred in a bath under a temperature of about 100° C. for 24 hours. After completion of the reaction, toluene is removed. The reaction mixture is extracted with dichloromethane and water, and then being distilled under reduced pressure. The resulting residence is filtered by silica gel column and distilled under reduced pressure again. Next, by re-crystallizing and filtering with dichloromethane and petroleum ether, 2,4-diphenyl-N-2-fluorophenylbenzenamine (2.1 g) is yielded.

Aufarbeitung

  1. customis removed
  2. extractionThe reaction mixture is extracted with dichloromethane and water
  3. distillationbeing distilled under reduced pressure
  4. filtrationThe resulting residence is filtered by silica gel column
  5. distillationdistilled under reduced pressure again
  6. customNext, by re-crystallizing
  7. filtrationfiltering with dichloromethane and petroleum ether

Quellen und Nachweise

ORD-Eintrag
ord-bc715d726b214670b8b515c9efd95368
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08835020B2

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