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Abstract In this research various pyridazino1,2‐ a indazole and 1 H ‐indazolo1,2‐ b phthalazine and 1 H ‐indazolo1,2‐ b phthalazine derivatives were produced with a high yield via a multi‐component reaction of dimedone, aldehyde, hydrazine and anhydride compounds in the presence of a novel DABCO‐Saccharin acetate (DABCOHSac‐CH 3 CO 2 ) ionic liquid under microwave irradiation. The applied method for producing these heterocyclic compounds demonstrated a number of desirable traits, including quick reactions, high yields of the final product, and straightforward separation of the product and catalyst from the reaction mixture.
Pouramiri et al. (Tue,) studied this question.