Potassium Phosphate, Tribasic → tert-Butyl 2-(5-(2-methylpyridin-4-yl)-3-nitropyridin-2-yloxy)acetate

Participants

Reaction Conditions

Reaction Steps

To a flask with tert-butyl 2-(5-bromo-3-nitropyridin-2-yloxy)acetate (78.F) (700 mg from last step, about 406 mg of estimated pure 78.F by NMR) was added tris(dibenzylideneacetone)dipalladium (o) (67 mg, 0.073 mmol), 2-methylpyridin-4-ylboronic acid (250 mg, 1.8 mmol), X-phos (139 mg, 0.29 mmol), potassium phosphate (1.04 g, 4.9 mmol). The solids were purged with nitrogen. Degassed t-amyl alcohol was added as a solvent. The reaction was heated at 100° C. for 2 hr. 40 min.s. The solids were filtered off. Silica gel purification afforded 280 mg (67%) 78.G.

Provenance & Evidence