Picolinic acid → 3-(4-(3,4-Dimethylphenoxy)phenyl)pyridin-2-amine

Participants

Reaction Conditions

Reaction Steps

Copper(I) iodide (102 mg) was added to a mixture of picolinic acid (66.1 mg), 4-(2-aminopyridin-3-yl)phenol (500 mg), tripotassium phosphate (1710 mg), 4-bromo-1,2-dimethylbenzene (596 mg) and DMSO (8 mL). The mixture was stirred at 130° C. under nitrogen for 3 hr and at 110° C. under nitrogen overnight. Activated carbon was added and the insoluble solid was removed by filtration through NH-silica gel/Celite pad (eluted with EtOAc). Water and EtOAc were added and the extracted organic layer was washed with brine. Silica-gel was added to the organic layer and the volatiles were removed in vacuo. The mixture supported on silica-gel was is purified by column chromatography (NH-silica gel, eluted with EtOAc in hexane) to give the title compound (144 mg) as a pale yellow crystalline solid.

Provenance & Evidence