Triethylamine → HCID 59699946, compound

Participants

Reaction Conditions

Reaction Steps

To a suspension of N-(5-bromo-3-iodo-pyridin-2-yl)-acetamide (6.42 g, 18.83 mmol) in dichloromethane (90 ml) was added triethyl amine (3.15 ml, 22.6 mmol), then the mixture was cooled to 0° C. and dichlorobis(triphenylphosphino)palladium (II) (66 mg, 0.094 mmol) and copper(i) iodide (36 mg, 0.188 mmol) were added sequentially. Finally trimethylsilylacetylene (2.93 ml, 20.71 mmol) was added dropwise, and the ice bath was removed. After stirring at room temperature for 17 hours, the crude mixture was directly adsorbed on silica gel. Purification by flash chromatography on silica gel with a gradient of ethyl acetate/hexane afforded the title compound as light yellow solid (4.75 g, 81% yield). 1H NMR (DMSO-d6): δ 9.99 (s, 1H), 8.31 (d, J=2.5 Hz, 1H), 7.95 (d, J=2.5 Hz, 1H), 1.82 (s, 3H), 0.00 (s, 9H); HPLC/MS m/z: 311, 313 [MH]+.

Provenance & Evidence