Download PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The first ultrasound-promoted multicomponent synthesis of pyridazinones and phthalazinones from arenes, cyclic anhydrides and ArNHNH 2 in the presence of an efficient recyclable catalyst, [bmim]Br/AlCl 3 , in high yield and short reaction time is reported.
