Thionyl Chloride → 5-(Chloromethyl)-2-cyclohexylbenzonitrile

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To 2-cyclohexyl-5-(hydroxymethyl)benzonitrile (190.5 mg, 0.885 mmol) was added thionyl chloride (5.0 mL, 68.1 mmol). The mixture was heated at 50° C. for 2 h and then room temperature overnight. The mixture was poured into an ice and stirred for 5 min. The mixture was extracted with dichloromethane. The organic layer was washed with saturated aqueous sodium bicarbonate solution, dried over anhydrous sodium sulfate and concentrated under reduced pressure to provide the title compound as a white solid (184.9 mg). LCMS m/z=234.1 [M+H]+; 1H NMR (400 MHz, CDCl3) δ ppm 1.23-1.31 (m, 1H), 1.40-1.52 (m, 4H), 1.76-1.82 (m, 1H), 1.83-1.92 (m, 4H), 2.93-3.03 (m, 1H), 4.55 (s, 2H), 7.37 (d, J=8.08 Hz, 1H), 7.55 (dd, J=8.02, 1.83 Hz, 1H), 7.62 (d, J=1.64 Hz, 1H).

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