Reacción #657266

ord-000a72fb152148a0ba487b523f8e51a4

Ecuación de reacción

Cc1cccc(OB([O-])[O-])c1
3-Methylphenyl borate
Cc1ccc2nc(Cl)c(C)cc2c1
2-chloro-3,6-dimethylquinoline
O=C([O-])[O-].[K+].[K+]
potassium carbonate
Cc1cccc(-c2nc3ccc(C)cc3cc2C)c1
2-(3-methylphenyl)-3,6-dimethylquinoline

Disolventes

Condiciones de reacción

Temperatura
100°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    OtroAfter completion of the reaction
  2. 2
    Otrothe THF and the toluene were removed
  3. 3
    ExtracciónThe reaction solution was extracted with dichloromethane and water
  4. 4
    workup.DISTILLATIONdistilled under reduced pressure
  5. 5
    OtroThe resulting residue was purified by silica gel column chromatography
  6. 6
    workup.DISTILLATIONThe eluate was distilled under reduced pressure
  7. 7
    OtroThe residue was recrystallized from dichloromethane and petroleum ether
  8. 8
    Filtraciónfiltered

Procedimiento

3-Methylphenyl borate (1.3 mmol), 2-chloro-3,6-dimethylquinoline (1 mmol), tetrakis(triphenylphosphine)palladium(O) (0.05 mmol) and potassium carbonate (3 mmol) were dissolved in THF (30 mL) and H2O (10 mL). The resulting solution was stirred in a bath at 100° C. for 24 hours. After completion of the reaction, the THF and the toluene were removed. The reaction solution was extracted with dichloromethane and water, and distilled under reduced pressure. The resulting residue was purified by silica gel column chromatography. The eluate was distilled under reduced pressure. The residue was recrystallized from dichloromethane and petroleum ether and filtered to yield 2-(3-methylphenyl)-3,6-dimethylquinoline as a solid.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US09023489B2uspto-grants-2015_05