Fig. 8

A suggested mechanism for the synthesis of dihydropyrano[2,3-c]pyrazole derivatives 6a-p catalyzed by the CS-g-PAN/Fe3O4 nanocomposite (1).

A suggested mechanism for the synthesis of dihydropyrano[2,3-c]pyrazole derivatives 6a-p catalyzed by the CS-g-PAN/Fe3O4 nanocomposite (1).