(3-Methoxyphenyl)boronic acid → HCID 67297972, compound

Participants

Reaction Conditions

Reaction Steps

In a 50 ml, round-bottomed flask was added 6-iodo-N-methyl-2-(pyrazin-2-yl)quinazolin-4-amine (0.100 g, 0.275 mmol), 3-methoxyphenylboronic acid (0.063 g, 0.413 mmol), bis(di-tert-butyl(4-dimethylaminophenyl)phosphine) dichloropalladium(II) (0.016 g, 0.022 mmol), and potassium phosphate tribasic monohydrate (0.190 g, 0.826 mmol) in dioxane (5 mL) and water (0.5 mL) to give a brown suspension. The reaction mixture was heated at 80° C. overnight under argon. After cooling to room temperature, the reaction mixture was diluted with water (10 mL) and then a precipitate formed. The resulting solid was collected by filtration and washed with ethyl acetate and dried to give 25 mg of 6-(3-methoxyphenyl)-N-methyl-2-(pyrazin-2-yl)quinazolin-4-amine as a pale yellow solid in a 26% yield. LCMS m/z=344 (M+1) (Method D) (retention time=1.43 ruin). 1H NMR (300 MHz, DMSO) δ 9.64 (s, 1H), 8.85-8.78 (m, 1H), 8.77-8.71 (m, 1H), 8.70-8.63 (m, 1H), 8.63-8.55 (m, 1H), 8.18 (d, J=8.8 Hz, 1H), 7.89 (d, J=8.9 Hz, 1H), 7.53-7.31 (m, 3H), 7.09-6.92 (m, 1H), 3.86 (5, 3H), 3.17 (d, J=3.6 Hz, 3H).

Provenance & Evidence