Methyl iodide → HCID 178503083、化合物

To a solution of acetophenone (5.0 g, 41.6 mmol) and CS2 (3.17 g, 41.6 mmol) in THF (150 mL) was added sodium hydride (1.997 g, 83 mmol) at 0° C. After 30 min at 0° C., the reaction was warmed to room temperature and stirred for 1 h, then refluxed for 4 h. The reaction was cooled to room temperature, added iodomethane (16.23 g, 104 mmol), and refluxed for another 12 h. The reaction was cooled and extracted with ethyl acetate. The organic extracts were concentrated under reduced pressure. The residue was diluted with ethanol (200 mL), added hydrazine (1.334 g, 41.6 mmol), and refluxed for 4 h. After cooling, the mixture was concentrated under reduced pressure and extracted with ethyl acetate. The organic extracts were dried over MgSO4 and concentrated under reduced pressure. The residue was purified by silica gel column chromatography to give the title compound (6.02 g). LCMS m/z=191.37 [M+H]+; 1H NMR (400 MHz, DMSO-d6) δ ppm 2.31 (s, 3H), 6.21 (s, 1H), 7.38-7.56 (m, 5H), 12.2 (s, 1H).