Reaktion #6451

ord-2bc83680343e4dc3bafc2ceb0ba1db4f

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Filtrationfiltered
  2. 2
    workup.ADDITIONThe solid was treated with 150 ml of boiling ethanol
  3. 3
    Temperaturcooled in ice
  4. 4
    Filtrationfiltered

Vorschrift

According to the method of J. C. S. Perkin Trans. I, 1979, 135, p-cyanoaniline (6.894 g, 58.4 mmol) was added to a solution of 4-chloro-3-nitropyridine (9.26 g, 58.4 mmol) in ethanol (200 ml) and the mixture was stirred at room temperature for 18 hours. The resulting yellow suspension was poured into 500 ml of ice-cold dilute ammonia and filtered. The solid was treated with 150 ml of boiling ethanol, cooled in ice, and filtered to give N-(4-cyanophenyl)-4-amino-3-nitropyridine, 12.15 g, as a bright yellow powder, m.p. 210°-211° C.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05248681uspto-grants-1993_09