Allylamine → HCID 18326474, compound

Participants

Reaction Steps

To 250 mg (1.21 mmol) of 6-nitroquinazoline-2,4(1H,3H)-dione were added 5.00 ml (53.64 mmol) of phosphorus oxychloride and 0.18 ml (1.21 mmol) of diisopropylformamide, and the resulting mixture was subjected to heating under reflux for 24 hours. After phosphorus oxychloride was removed in vacuo, the mixture was dissolved in 5 ml of acetonitrile, followed by addition of 328 mg (2.42 mmol) of 2,2,2-trifluoroethylamine hydrochloride and 1.69 ml (12.10 mmol) of triethylamine under ice cooling and stirring under ice cooling for 30 minutes. To the reaction solution was added water, followed by extraction with ethyl acetate, washing with brine and drying over anhydrous sodium sulfate. After the solvent was distilled off, 1.50 ml (20.00 mmol) of allylamine was added thereto, followed by stirring overnight, adding water to the reaction solution, extraction with ethyl acetate, washing with brine and drying over anhydrous sodium sulfate. After the solvent was distilled off, the residue was purified by a silica gel column to give 50 mg (12.6%) of the title compound.

Provenance & Evidence