Synthesis and Biological Activity of some New Nitrogenous Heterocyclic Compounds Derived from Azachalcone
Rafidain Journal of Science,
2019, Volume 28, Issue 2, Pages 37-46
AbstractA series of heterocyclic compounds containing oxygen and nitrogen atoms, isoxazoline ІI(a-d) and another containing two nitrogen atoms, pyrazolinesІII(a-d) and phenylpyrazolines IV(a-d) were prepared by the reaction of a proper azachalcones І(a-d) with hydroxylaminehydrochloride, hydrazine hydrate or phenylhydrazine. These heterocyclic compounds were characterized by 1H-NMR , CHN , IR and UV spectra in addition to their some physical properties. Also, these prepared compounds were screened for their biological activities and a theoretical calculation which shows that the product IVa obtained from 1,2 – rout was energetically more stable by 1.3967 kcal/mole than that came from 1,4 – rout, thus the reaction proceed via 1,2 – addition 1,2)).
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