2,4,6-Trichloropyrimidine → 2,6-Dichloropyrimidin-4-yl-(5-isopropyl-1H-pyrazol-3-yl)-amine

Participants

Reaction Conditions

Reaction Steps

A mixture of 2,4,6-trichloropyrimidine (1.8 g, 9.8 mmol), 5-isopropyl-1H-pyrazol-3-ylamine (1.25 g, 10.0 mmol), diisopropylethylamine (3 mL, 18 mmol) and 1-butanol (10 mL) was heated to 80° C. for 2 h, at which point LC/MS indicated that the reaction was complete. The solvents were removed on a rotary evaporator and the paste was treated with ethyl acetate. The organic solution was washed with water and brine and dried over magnesium sulfate. The residue was concentrated on a rotary evaporator, and the pale yellow solid that remained was purified via flash chromatography to yield the desired product (2.3 g, 70%) as an off white solid.

Provenance & Evidence