Cesium fluoride → Methyl 2-(6-aminopyridin-3-yloxy)-4-fluorobenzoate

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (1.039 g), CsF (1.956 g), bis(triphenylphosphine)palladium(II)dichloride (0.301 g), and methyl 2-bromo-4-fluorobenzoate (1.0 g) in 50 mL dimethoxyethane-methanol (1:1) was heated at 80° C. for 2.5 hours. The reaction mixture was partitioned between water and ethyl acetate. The organic phase was washed with brine, dried over MgSO4, filtered, ad concentrated. The residue was chromatographed on silica gel with 25-80% ethyl acetate in hexanes.

Provenance & Evidence