Browsing by Author "Elnagdi, Mohamed H."
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Item Multi Component Reactions under Increased Pressure: On the Mechanism of Formation of Pyridazino[5,4,3-de][1,6]naphthyridine Derivatives by the Reaction of Malononitrile, Aldehydes and 2-Oxoglyoxalarylhydrazones in Q-Tubes(MDPI, 2017) AL-Johani, Majdah A.; Al-Zaydi, Khadijah M.; Mousally, Sameera M.; Alqahtani, Norah F.; Elnagdi, Noha Hilmy; Elnagdi, Mohamed H.Efficient synthesis of phenanthridin-6(5H)-one derivatives 12a-n in a four-component reaction of aldehyde hydrazone, aromatic aldehydes and malononitrile in Q-Tubes is reported. The results showed that the methodology has the advantage of being a one-pot synthesis of tricyclic systems in good yields. Potential routes leading to formation of compounds 12 are discussed. The structures of the synthesized compounds could be unequivocally established via X-ray crystal structure determination and spectroscopic methods.