Réaction #161494

ord-e56c8d56a3744d859bc7775f1186abe7

Solvants

Conditions de réaction

Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Températurethis was heated
  2. 2
    Températureto reflux for 3 hours
  3. 3
    Filtrationafter the precipitated crystals were filtered
  4. 4
    Lavagewashed with water, they
  5. 5
    Autrewere dried

Mode opératoire

To a suspension of 2-(4-fluoro-3-nitrophenyl)benzoxazole (see Working Example 15-2) (300 mg, 1.16 mmol) in acetonitrile (5 mL) was added potassium carbonate (321 mg, 1.55 mmol) and 2-(methylthio)ethylamine (127 mg, 1.39 mmol), and this was heated to reflux for 3 hours. After the reaction was complete, this was cooled to room temperature, water was added, and after the precipitated crystals were filtered and washed with water, they were dried to yield the title compound (373 mg, 98% yield) as red crystals.

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US08829035B2uspto-grants-2014_09