4'-Nitro-[1,1'-biphenyl]-2-carbonitrile → 2-(4-Aminophenyl)benzonitrile

HRID 1450376Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1450376
[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[CH:14]=[CH:13][C:12]([N+:15]([O-])=O)=[CH:11][CH:10]=1)#[N:2]>C(O)C.C(OCC)(=O)C.[Pd]>[NH2:15][C:12]1[CH:11]=[CH:10][C:9]([C:4]2[CH:5]=[CH:6][CH:7]=[CH:8][C:3]=2[C:1]#[N:2])=[CH:14][CH:13]=1

Komponenten

5

Edukt 1

HCID 127147954'-Nitro-[1,1'-biphenyl]-2-carbonitrile

Produkt 1

HCID 13939262-(4-Aminophenyl)benzonitrile

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 23938PalladiumKatalysatorHCID 702EthanolLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

6.0 g (26.8 mmol) of 2'-cyano-4-nitrobiphenyl (prepared according to B. Sain, J. S. Sandhu, J. Org. Chem. 1990, 55, 2545) were dissolved in a mixture of 60 ml ethanol and 60 ml ethyl acetate, and the solution was filled into an autoclave. After addition of 660 mg 10% Pd on charcoal the mixture was set under an atmosphere of hydrogen (2-3 bar). The reduction was carried out at room temperature, the course of the reaction monitored by thin layer chromatography, and it had completed after 2.5 h. The catalyst was filtered and the solvent distilled off in vacuo. The title amine was obtained by crystallization from hexane as a white powder, m.p. 98°-100° C.

Aufarbeitung

  1. additionthe solution was filled into an autoclave
  2. customwas carried out at room temperature
  3. filtrationThe catalyst was filtered
  4. distillationthe solvent distilled off in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-a7b3cdfa51b44751bd47c88827bce996
Quelldatensatz
uspto-grants-1997_02
Patentnummer
US05602137

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