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Off-white powder

4-(4-Fluorophenyl)phenol

To a 500 mL three-necked flask with stirring, a thermometer and a 100 mL dropping funnel were added 0.045 mol TMBP (10 g), 0.32 mol pyridine (8 mL) and 100 mL acetone accordingly, and 0.1 mol ABC (18 g) was dissolved in 30 mL of acetone, which was poured