Cesium carbonate → HCID 16071665, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-bromo-6-pyridin-3-ylpyrazin-2-amine (Preparation 6, 0.4 g, 1.59 mmol), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (0.424 g, 2.07 mmol), [1,1′-bis(diphenylphosphino)ferrocene]palladium(II)dichloride dichloromethane complex (1:1) (76 mg, 0.095 mmol) and cesium carbonate (1.55 g, 4.77 mmol) in dioxane (14 mL) and water (3.72 mL) was heated to 150° C. for 10 minutes in the microwave oven. The mixture was partitioned between ethyl acetate and water. The organic layer was dried (MgSO4) and evaporated. Silica gel flash chromatography (95:5 dichloromethane/methanol) gave the title compound (0.37 g, 74%) as a solid.

Provenance & Evidence