Semnan University Press Applied Chemistry Today 2981-2437 11 40 2016 09 22 One-pot and facile synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones using nano-NiO under solvent-free conditions One-pot and facile synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones using nano-NiO under solvent-free conditions 107 120 760 10.22075/chem.2017.760 FA Journal Article 2017 01 15 In this article, nano-NiO as a heterogenuos and recyclable catalyst has been used for the synthesis of 1H-Pyrazolo[1,2-b]Phthalazine-5,10-Diones by the reaction of malononitrile, aldehydes and phthalhydrazide under solvent-free conditions. Short reaction time, reusability easy work up and high yields of products are the advantages of this procedure. In this article, nano-NiO as a heterogenuos and recyclable catalyst has been used for the synthesis of 1H-Pyrazolo[1,2-b]Phthalazine-5,10-Diones by the reaction of malononitrile, aldehydes and phthalhydrazide under solvent-free conditions. Short reaction time, reusability easy work up and high yields of products are the advantages of this procedure. https://chemistry.semnan.ac.ir/article_760_27c3af4d855902e064e1b2b7fa72a860.pdf