Cesium carbonate → (R)-4-(1-(2-bromo-4-chlorophenyl)-2,2,2-trifluoroethoxy)-6-chloropyrimidin-2-amine

Participants

Reaction Conditions

Reaction Steps

To a solution of (R)-1-(2-bromo-4-chlorophenyl)-2,2,2-trifluoroethanol (Intermediate 43) (400 mg, 1.4 mmol) in dioxane (25 mL) was added 4,6-dichloropyrimidin-2-amine (1.1 g, 7 mmol) and Cs2CO3 (1.3 g, 4 mmol). The mixture was heated for 24 h at 80° C. The reaction was then cooled to RT and filtered. The solvent was removed in vacuo, then CH2Cl2 and heptane was added. The solvent volume was reduced until a solid precipitated out. The solid was filtered and the procedure repeated several times to provide (R)-4-(1-(2-bromo-4-chlorophenyl)-2,2,2-trifluoroethoxy)-6-chloropyrimidin-2-amine as a white solid.

Provenance & Evidence