Synthesis of H-pyrazolo[5,1-a]isoquinolines via a silver triflate-catalyzed tandem reaction of N′-(2-alkynylbenzylidene)hydrazide with alcohol

A silver triflate-catalyzed tandem reaction of N′-(2-alkynylbenzylidene)hydrazide with alcohol is reported, which generates H-pyrazolo[5,1-a]isoquinoline derivatives in good yields under mild conditions.