Triethylamine → 7-(5-Methyl-isoxazol-3-yl)-imidazo[1,2-a]pyridine

Participants

Reaction Conditions

Reaction Steps

To a solution of 1-Imidazo[1,2-a]pyridin-7-yl-but-2-yn-1-one (168 mg, 0.91 mmol) and hydroxylamine hydrochloride (94 mg, 1.37 mmol) in DMF (10 ml) was added triethylamine (0.21 ml, 1.83 mmol). The reaction mixture was heated at 80° C. for 18 h, then partitioned between EtOAc and H2O. The organic fraction was separated, dried (MgSO4), filtered and the solvent removed in vacuo. The crude residue was purified by silica column chromatography (0-50% MeOH in Et2O) to afford the product (46 mg). MS: [M+H]+=200.

Provenance & Evidence