Sodium Hydroxide → HCID 59263334, compound

Participants

Reaction Steps

To a mixture of 2′-oxo-1′,2′-dihydrospiro[1-benzofuran-3,3′-indol]-5-yl trifluoromethanesulfonate (0.42 g, 1.10 mmol) and sodium hydroxide (0.07 g, 1.65 mmol) in N,N-dimethylformamide (5.00 mL) was added 2-(bromomethyl)-5-(trifluoromethyl)furan (0.50 g, 2.20 mmol) at 0° C. The reaction mixture was stirred at ambient temperature for 16 h and diluted with ethyl acetate (200 mL). After washing with aqueous saturated sodium chloride (2×20.0 mL), the organic layer was dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated in vacuo. The residue was subjected to column chromatography (ethyl acetate/hexane, 1/3) to give the title compound (0.47 g, 80%) as a clear oil: 1H NMR (300 MHz, CDCl3) δ 7.34 (t, 1H), 7.18-6.94 (m, 5H), 6.74 (dd, 1H), 6.55 (dd, 1H), 6.40 (d, 1H), 5.09-4.72 (m, 4H); MS (ES+) m/z 534.4 (M+1).

Provenance & Evidence