Hydrochloric Acid → HCID 67298218, compound

Participants

Reaction Conditions

Reaction Steps

6-Bromo-N,8-dimethyl-2-(pyridin-3-yl)quinazolin-4-amine (340 mg, 1.03 mmol), 3-fluorobenzeneboronic acid (217 mg, 1.55 mmol), K2PO4 (658 mg, 3.10 mmol) and Pd(PPh3)4 (59.7 mg, 0.052 mmol) were dissolved in the mixed solvent of 1,4-dioxane (10 mL) and water (1 mL). The resulting mixture was stirred at 90° C. for 6 hours under a nitrogen atmosphere. After the reaction was completed, water was added to the mixture and stirred for 30 minutes. The resulting precipitate was collected by filtration and purified by column chromatography on NH-silica gel (eluted with THF) to give a yellow powder. The solid was suspended in ethanol and 5N HCl (1 mL) was added to the mixture. The mixture was sonicated for 10 min and the resulting precipitate was collected by filtration and dried to give 304 mg of 6-(3-fluorophenyl)-N,8-dimethyl-2-(pyridin-3-yl)quinazolin-4 amine dihydrochloride as a yellow powder in 71% yield.

Provenance & Evidence