Potassium Carbonate → 3,4-Dihydro-6-(2,2,2-trifluoroethoxy)-1(2H)-naphthalenone

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

To a solution of 6-hydroxy-3,4-dihydro-1(2H)-naphthalenone (200 mg, 1.2 mmol) and 2,2,2-trifluoroethyl tosylate (345 mg, 1.4 mmol) in DMF (10 mL) was added potassium carbonate (339 mg, 2.5 mmol) at rt. The solution was heated at 100° C. overnight. The reaction was cooled, diluted with water (20 mL), and extracted with EtOAc (20 mL×3). Organics were dried (Na2SO4) and concentrated to give 250 mg (83%) of the title compound as a yellow solid. 1H NMR (300 MHz, CDCl3): δ 2.12-2.16 (2H, m), 2.64 (2H, t, J=6.3 Hz), 2.95 (2H, t, J=6.3 Hz), 4.34-4.46 (2H, m), 6.78 (1H, d, J=2.4 Hz), 6.87 (1H, dd, J=2.4, 8.7 Hz), 8.05 (1H, dd, J=8.7 Hz).

Herkunft & Nachweise