Réaction #992749

ord-acc0979c7379437ca4de41ba52812ed9

Conditions de réaction

Température
180°CELSIUS
Conditions détaillées
See reaction.notes.procedure_details.

Traitement

  1. 1
    Extractionthe crude mixture was extracted with ethyl acetate (100 mL)
  2. 2
    LavageThe organic phase was washed with water (100 mL) and brine (100 mL)
  3. 3
    Séchagedried over sodium sulfate
  4. 4
    Concentrationconcentrated in vacuo
  5. 5
    AutreThe crude product was purified by flash chromatography

Mode opératoire

2-Bromo-6-trifluoromethyl-benzene-1,4-diamine (2.21 g), bis-(2-bromoethyl)ether (1.30 mL) and N,N-diisopropyl-ethylamine (4.64 mL) were mixed in N,N-dimethylformamide (19 mL) and heated to 180° C. for 30 minutes in a sealed microwave process vial. Saturated aqueous bicarbonate (100 mL) was added and the crude mixture was extracted with ethyl acetate (100 mL). The organic phase was washed with water (100 mL) and brine (100 mL), dried over sodium sulfate and concentrated in vacuo. The crude product was purified by flash chromatography to furnish 1.78 g (63%) of the title compound as a yellow solid. LC-MS (m/z) 326 (MH+); tR=2.54, (UV, ELSD) 83%, 75%. 1H NMR (500 MHz, DMSO-d6): 2.99 (m, 4H), 3.70 (m, 4H), 5.00 (s, 2H), 7.00 (d, 1H), 7.38 (d, 1H).

Source

DOI: 10.6084/m9.figshare.5104873.v1Brevet: US08012962B2uspto-grants-2011_09