Ethanol → HCID 22032939, compound

Participants

Reaction Steps

Ethyl {1-benzyl-5-[4-(trifluoromethoxy)phenyl]-1H-indol-3-yl}(oxo)acetate was prepared from 1-benzyl-5-[4-(trifluoromethoxy)phenyl]-1H-indole (2.80 g, 7.62 mmol), oxalyl chloride (2.0 mL, 23 mmol), and ethanol (4.5 mL) according to the procedure described in Step 3 of Example 1. Purification by flash chromatography using 5-10% ethyl acetate in hexane as an eluant then drying at 60° C. furnished the title compound as a yellow gum (3.05 g, 86%). 1HNMR (300 MHz, DMSO-d6): δ 8.75 (s, 1H), 8.45 (s, 1H), 7.8 (d, 2H, J=9.2 Hz), 7.75 (d, 1H, J=9.2 Hz), 7.6 (d, 1H, J=9.2 Hz), 7.45 (d, 2H, J=9.2 Hz), 7.3-7.4 (m, 5H), 5.85 (s, 2H), 4.35 (q, 2H, J=7.5 Hz), and 1.35 ppm (t, 3H, J=7.5 Hz).

Provenance & Evidence