Pyridine → 2,2,2-Trichloroethyl pyrimidin-4-ylcarbamate

Participants

Reaction Steps

To a solution of pyrimidine-4-amine (1.00 g, 10.5 mmol) and pyridine (2.55 ml, 31.5 mmol) in N,N-dimethylacetamide (50 ml) was added 2,2,2-trichloroethyl chloroformate (2.55 ml, 31.5 mmol) with ice-cooling, and the mixture was stirred for 1 hour with ice-cooling. The reaction mixture was poured into ice-water and the mixture was extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate and the solvent was distilled off under reduced pressure. The residue was recrystallized from a mixed solvent of hexane and ethyl acetate and the desired product (1.97 g, 69.4%) as a solid was collected by filtration.

Provenance & Evidence