(1)
Varghese, A.; Nizam, A.; Kulkarni, R.; George, L. Solvent-Free Synthesis of 2H-indazolo[2,1-B] Phthalazine-Triones Promoted by Cavitational Phenomenon Using Iodine As Catalyst. Eur. J. Chem. 2013, 4, 132-137.