1H-Pyrazol-3-amine, 5-methyl- → 2-Chloro-n-(5-methyl-1h-pyrazol-3-yl)quinazolin-4-amine

Participants

Reaction Steps

To a solution of 2,4-dichloro-quinazoline (3.3 g, 16.6 mmol) in anhydrous ethanol (150 mL) is added 5-methyl-1H-pyrazol-3-yl amine (3.2 g, 32.9 mmol). The mixture is stirred at room temperature for 4 h, and the resulting precipitate is collected by filtration, washed with ethanol, and dried under vacuum to afford (2-chloro-quinazolin-4-yl)-(5-methyl-1H-pyrazol-3-yl)-amine.

Provenance & Evidence