Imidazole → HCID 67257102, compound

Participants

Reaction Steps

To a solution of 4-(2,2-dimethyl-1,3-dioxolan-4-yl)pyrimidin-2-amine (2f) (7.18 g) in methanol (300 mL) was added p-toluenesulfonic acid monohydrate (10.49 g) and the solution was stirred at room temperature overnight. The mixture was filtered through sodium carbonate and concentrated under vacuum to give a brown solid that was dissolved in N,N-dimethylformamide (400 mL) to which was added imidazole (5.2 g) and tert-butyldimethylsilyl chloride (7.7 g) and the solution was stirred at room temperature overnight. The mixture was concentrated on silica under vacuum and purified by silica flash chromatography eluting with 50% to 75% ethyl acetate in heptane to give the title compound (850 mg).

Provenance & Evidence