Palladium functionalized phosphinite polyethyleneimine grafted magnetic silica nanoparticles as an efficient catalyst for the synthesis of isoquinolino[1,2-b]quinazolin-8-ones

Novel 5-methyl-8H-isoquinolino[1,2-b]quinazolin-8-one derivatives are synthesized using a reusable immobilized palladium catalyzed intramolecular carbon–carbon bond formation.