Реакция #657266

ord-000a72fb152148a0ba487b523f8e51a4

Уравнение реакции

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

Растворители

Условия реакции

Температура
100°CELSIUS
Подробные условия
See reaction.notes.procedure_details.

Обработка

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

Методика

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.

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US09023489B2uspto-grants-2015_05