Methanesulfonic Acid → 4-methyl-N-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)pyrimidin-2-amine

関与物質

反応条件

反応手順

To a flask containing 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (1.50 g, 6.85 mmol) and 2-chloro-4-methylpyrimidine (1.01 g, 7.87 mmol) were added dioxane (69 mL) and methanesulfonic acid (0.51 mL, 7.87 mmol). The reaction was heated at 100° C. overnight. The reaction was then cooled to room temperature, diluted with ethyl acetate, washed with water, dried over magnesium sulfate, filtered and concentrated. Flash chromatography was used for purification to yield 4-methyl-N-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]pyrimidin-2-amine (1.23 g, 3.95 mmol, 58% yield). MS ESI: [M+H]+ m/z 312. 1H NMR (500 MHz, DMSO-d6) δ 9.48 (s, 1H), 8.30 (d, J=5.0, 1H), 7.98 (d, J=8.0, 1H), 7.95 (s, 1H), 7.29-7.20 (m, 2H), 6.71 (d, J=5:0, 1H), 2.33 (s, 3H), 1.28 (s, 12H).

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