Nano mesoporous silica as an efficient catalyst for the preparation of 2H- indazolo [2,1-b] phthalazin-triones under solvent-free condition

Mesoporous molecular sieves are known to be a kind of crystalline aluminosilicate whose structure includes channels and cage have a certain size. Silica material with a controllable pore diameter in the range of 2-10 nm. Nano mesoporous silica as an efficient and reusable heterogeneous catalyst have been used for the preparation of 2H-indazolo[2,1-b]phthalazin-1,6,11(13H)-triones derivatives from the three-component condensation reaction of phthalhydrazide, dimedon, and aromatic aldehydes under solvent-free conditions in good excellent yields and short reaction times.

کلیدواژه ها:

Nano mesopotous silica ، Heterogeneous catalyst ، Solvent-free ، 2H- indazolo[2 ، 1-b]phthalazin-triones ، Phthalhydrazide