Triethylamine → 4-Allylamino-2-(3-methyl-2-butenylamino)-6-nitroquinazoline

Participants

Reaction Steps

To 10 ml of a solution of 150 mg (0.57 mmol) of 4-allylamino-2-chloro-6-nitroquinazoline in acetonitrile were added 137 mg (1.13 mmol) of 3-methyl-2-butenylamine hydrochloride and 288 mg (2.85 mmol) of triethylamine, followed by heating at room temperature for 4.5 hours. After completion of the reaction, ice water was added to the reaction mixture, followed by extraction with chloroform (10 ml×3). After the organic layer was washed with brine and then dried over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure. The residue was purified by a silica gel chromatography to give 133 mg (yield: 75.1%) of the title compound.

Provenance & Evidence