Resumen de Sulfonic acid functionalized nanoporous silica (sba-pr-so3h) as an efficient catalyst for the one-pot synthesis of 2h-indazolo[1,2-b]phthalazine-triones

Ghodsi Mohammadi Ziarani, Alireza Badiei, Nina Hosseini Mohtasham, Negar Lashgari

• Sulfonic acid functionalized SBA-15 (SBA-Pr-SO3H) with a pore size of 6 nm is an efficient catalyst in the green three-component condensation of phthalhydrazide, dimedone and aldehydes to give 2H-indazolo[1,2-b]plithalazine-triones under solvent-free conditions in excellent yields and short reaction times.