Potassium Hydroxide → HCID 53356849, compound

Participants

Reaction Steps

8-Chloro-6-fluoro-1,2-bis(trifluoromethyl)-1-(trimethylsilyloxy)-2,3,4,9-tetrahydro-1H-carbazole (0.2 g, 0.44 mmol) was dissolved in THF (10 mL) and KOH (0.125 g, 2.2 mmol), water (2 mL), was added. The reaction mixture was stirred at room temperature for 2 h, diluted with water (25 mL) and extracted with EtOAc (2×25 mL). The combined organic extracts were dried over Na2SO4, concentrated in vacuo and purified by column chromatography [EtOAc-hexane (1:19) as eluant] to obtain the title compound (0.070 g, 42%) (HPLC 99%). 1H NMR (500 MHz, CDCl3, δ in ppm) 8.49 (br s, 1H), 7.26-7.23 (d, J=11.0 Hz, 1H), 7.14-7.11 (dd, J=8.5, 2.0 Hz, 1H), 3.71-3.67 (m, 1H), 2.60-2.57 (m, 1H), 5.54 (s, 1H), 2.40-2.37 (m, 1H), 2.30-2.24 (m, 1H), 2.10-2.07 (m, 1H).

Provenance & Evidence