Propiolic Acid → HCID 57708572, compound

Participants

Reaction Steps

To a solution of propiolic acid (27 mg, 0.387 mmol) in tetrahydrofuran (2 mL) and N,N-dimethylformamide (2 mL) was added N,N′-dicyclohexylcarbodiimide (100 mg, 0.484 mmol) under ice-cooling, and the mixture was stirred for 30 min. To the reaction mixture was added N-[6-(3-aminophenoxy)imidazo[1,2-b]pyridazin-2-yl]cyclopropanecarboxamide (100 mg, 0.323 mmol), and the mixture was stirred under ice-cooling for 4 hr. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (ethyl acetate/hexane=0/100→100/0) to give the title compound (24 mg, 21%) as a pale-orange powder.

Provenance & Evidence