反应详情

4-methylpyrimidine-2-thiol hydrochloride (200 mg, 1.2 mmol) and potassium carbonate (357 mg, 2.6 mmol) was stirred for 30 minutes in anhydrous DMF (4 mL) at room temperature. Then, 2-(bromomethyl)-1,3,4-trichlorobenzene (345 mg, 1.3 mmol) in anhydrous DMF (1 mL) was added, and the mixture was stirred overnight at room temperature. The solid was removed by filtration and filtrate evaporation. The residue was dissolved in DCM and purified on silica gel using 5% DCM/MeOH to afford, after trituration with diethyl ether, 4-methyl-2-{[(2,3,6-trichlorophenyl)methyl]sulfanyl}pyrimidine as a white solid (88 mg, 22% yield); 1H NMR (400 MHz, DMSO-d6): δ 2.44 (s, 3H), 4.75 (s, 2H), 6.09 (s, 1H), 7.17 (d, J=5.1 Hz, 1H), 7.58 (d, J=8.7 Hz, 1H), 7.67 (d, J=8.7 Hz, 1H), 8.54 (d, J=5.1 Hz, 1H); LRMS (ES+) m/z 319 (100%, M+1), 321 (100%, M+3), 323 (35%, M+5).

1. customThe solid was removed by filtration and filtrate evaporation
2. dissolutionThe residue was dissolved in DCM
3. custompurified on silica gel using 5% DCM/MeOH
4. customto afford