Multicomponent synthesis of pyridazine a
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Hassan Sheibani; Zeinab Esfandiarpoor
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Article
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2011
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Journal of Heterocyclic Chemistry
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English
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A series of 3-amino-2,5-dihydropyridazines and fused pyridazinoquinazolines have been prepared in a one-step procedure from three-component reactions of (arylhydrazono)-propan-2-ones, aldehydes and malononitrile or ethyl cyanoacetate in the presence of magnesium oxide (MgO) and 12-tungstophosphoric