Methanol → HCID 178469439, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 220 mg of ethyl 6-ethynylimidazo[1,2-a]pyridine-2-carboxylate and 0.21 mL of azidotrimethylsilane in 4 mL of a mixture (9/1) of N,N-dimethylformamide and methanol are added 9.8 mg of cuprous iodide. The reaction mixture is stirred for 2 hours at 100° C. and then cooled, diluted with 4 mL of dichloromethane, filtered through alumina and concentrated to dryness. The residue is chromatographed on silica, eluting with a mixture of dichloromethane and ethanol (97/3). The fractions containing the expected product are combined and concentrated to dryness under reduced pressure to give 125 mg of ethyl 6-(1H-1,2,3-triazol-4-yl)imidazo[1,2-a]pyridine-2-carboxylate in the form of an off-white solid.

Provenance & Evidence