Abstract
Some novel 5,8-diaryl-5,7,8,9-tetrahydropyrimido[5,4-e]tetrazolo[1,5-a]pyrimidin-6(4H)-one derivatives are prepared via one-pot reaction of aromatic aldehydes, 2-aminotetrazole and cyanoacetamide using two different types of catalytic systems including nano-magnetic catalyst supported with functionalized 4-amino-pyridine silica (MNPs@SiO2-Pr-AP) and NEt3. The highlighting points of using MNPs@SiO2-Pr-AP are easy purification, reusability of the catalyst, good yields of products with short time reactions compared with NEt3.
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Correction Statement
This article has been republished with minor changes. These changes do not impact the academic content of the article.