Quinone → 2-(4-Fluorobenzenesulfonyl)benzene-1,4-diol

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A solution of the title A compound, 4-fluorobenzenesulfinic acid (3 g, 18.75 mmol) in 10 mL of water is added to a solution of 1,4 benzoquinone (1.93 g, 17.86 mmol) in 30 mL of CH2Cl2 at RT. After 4 h, the precipitated product is collected by vacuum filtration and washed with cold CH2Cl2 and dried under vacuum to afford 2-(4-fluorobenzenesulfonyl)-benzene-1,4-diol: NMR (DMSO-d6) 6.73 (d, 1H, J=9), 6.92 (dd, 1H, J=9, 3), 7.31 (d, 1H, J=3),7.41 (app t, 2H, J=9), 7.96 (dd, 2H, J=9, 5), 9.41 (s, 1H), 10.05 (s, 1H); ESI-MS 267 [M-1]−.

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