Potassium Hydroxide → HCID 52942229, compound

Participants

Reaction Steps

8-Chloro-6-fluoro-1-(trifluoromethyl)-1-(trimethylsilyloxy)-2,3,4,9-tetrahydro-1H-carbazole (0.1 g, 0.26 mmol) was dissolved in THF (10 mL) and KOH (0.073 g, 1.3 mmol), in 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 to give the crude compound which was purified by silica gel chromatography [EtOAc-hexane (1:4) as eluant] to provide the title compound (0.02 g, 24%) (HPLC 96%). 1H NMR (500 MHz, CDCl3, δ in ppm) 8.27 (bs, 1H), 7.12-7.11 (d, J=9.0 Hz, 1H), 7.08-7.0 (d, J=8.5 Hz, 1H), 2.82-2.77 (m, 1H), 2.71-2.65 (m, 1H), 2.49 (s, 1H), 2.29-2.23 (m, 1H), 2.12-2.09 (m, 1H), 2.05-2.02 (m, 2H).

Provenance & Evidence