Sodium Azide → 5-(3'-Fluoro-4'-methyl-biphenyl-2-yl)-1H-tetrazole

HRID 343957Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 343957
[F:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:16]=[CH:15][CH:14]=[CH:13][C:10]=2[C:11]#[N:12])[CH:5]=[CH:6][C:7]=1[CH3:8].[N-:17]=[N+:18]=[N-:19].[Na+].[Cl-].C([NH+](CC)CC)C>CN(C)C=O>[F:1][C:2]1[CH:3]=[C:4]([C:9]2[CH:16]=[CH:15][CH:14]=[CH:13][C:10]=2[C:11]2[NH:19][N:18]=[N:17][N:12]=2)[CH:5]=[CH:6][C:7]=1[CH3:8]

Komponenten

5

Edukt 3

HCID 33557Sodium AzideHCID 12698378Triethylazanium chlorideHCID 542386242-(3-Fluoro-4-methylphenyl)benzonitrile

Produkt 1

HCID 1784237105-(3'-Fluoro-4'-methyl-biphenyl-2-yl)-1H-tetrazole

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

2.26 g (10.7 mmol) of the compound from Example IV are boiled under reflux with 3.48 g (53.6 mmol) of sodium azide and 7.37 g (53.6 mmol) of triethylammonium chloride in 30 ml of analytical grade dimethylformamide for 24 hours. After cooling, the mixture is partitioned between ether and 1M sulphuric acid, the organic phase is washed with water and dried over sodium sulphate and the solvent is evaporated off. The crude product is extracted by stirring in toluene and, after filtration with suction, the product is dried in vacuo (1.89 g, 7.2 mmol). The mother liquor is evaporated on a rotary evaporator and the residue is purified again as above (0.43 g, 1.7 mmol).

Aufarbeitung

  1. temperatureAfter cooling
  2. customthe mixture is partitioned between ether and 1M sulphuric acid
  3. washthe organic phase is washed with water
  4. dry with materialdried over sodium sulphate
  5. customthe solvent is evaporated off
  6. extractionThe crude product is extracted
  7. filtrationafter filtration with suction
  8. customthe product is dried in vacuo (1.89 g, 7.2 mmol)
  9. customThe mother liquor is evaporated on a rotary evaporator
  10. customthe residue is purified again as above (0.43 g, 1.7 mmol)

Quellen und Nachweise

ORD-Eintrag
ord-de400e93b1994ebb9d478ee796aa96ba
Quelldatensatz
uspto-grants-1999_01
Patentnummer
US05863930

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