indium(III)chloride → 2-(4-(1-(4-(trifluoromethoxy)phenyl)-1 H-1,2,4-triazol-3-yl)phenyl)cyclohexanone

Participants

Reaction Steps

To a stirred solution of indium chloride (1.259 g, 5.69 mmol) in 15 mL of dry THF in a 100 mL flask was added a solution of 3-(4-(7-oxabicyclo[4.1.0]heptan-1-yl)phenyl)-1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazole (CB54) (1.14 g, 2.85 mmol) in dry tetrahydrofuran (10 mL). Stirring was continued under nitrogen for 24 hours, then the solution was diluted with diethyl ether (50 mL) and washed with water, dried, and concentrated in vacuo. Purification by flash column chromatography using 0-60% ethyl acetate/hexanes as eluent provided the title compound as a white solid (0.566 g, 35%): 1H NMR (400 MHz, CDCl3) δ 1H NMR (400 MHz, CDCl3) δ 8.54 (s, 1H), 8.16 (dd, J=8.6, 2.1 Hz, 2H), 7.83-7.72 (m, 2H), 7.43-7.33 (m, 2H), 7.30-7.21 (m, 2H), 3.68 (dd, J=12.2, 5.4 Hz, 1H), 2.61-2.41 (m, 2H), 2.37-2.24 (m, 1H), 2.23-1.92 (m, 3H), 1.85-1.60 (m, 2H); 19F NMR (376 MHz, CDCl3) δ −58.03; ESIMS m/z 402 ([M+H]+).

Provenance & Evidence