Hydrochloric Acid → 6-chloro-5-methyl-N-phenylpyrimidin-4-amine

関与物質

反応手順

To a mixture of 4,6-dichloro-5-methylpyrimidine (2.27 g, 13.9 mmol) and aniline (1.0 g, 10.7 mmol) in isopropanol (15 mL) was added concentrated aqueous hydrochloric acid (1.5 mL) and heated to reflux for 2.5 h. The mixture was then concentrated and the residue triturated with ethyl acetate:isopropanol 4:1. The solid was collected by filtration and washed with additional ethyl acetate:isopropanol 4:1 then dried to give 6-chloro-5-methyl-N-phenylpyrimidin-4-amine (2.0 g, 67% yield). 1H NMR (400 MHz, d6-DMSO): 8.85 (s, 1H), 8.26 (s, 1H), 7.60 (d, 2H), 7.35 (tr, 2H), 7.11 (tr, 1H), 2.31 (s, 3H). MS (EI) for C11H10ClN3: 220 (MH+).

情報源と証拠