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Synthesis and Characterization of Some Novel Hydrazones of N-{11H-pyrido[2,1-b]quinazolin-11-one-9-yl} hydrazine
2019
Rafidain journal of science
The 2-[(6-chloro-2-pyridyl) amino]benzoic acid (I) was synthesized viaUllmann-Goldberg coupling by reaction of anthranilic acid with2,6-dichloropyridine. The compound (I) was cyclized by using poly phosphoric acid (PPA) to give 9-chloro-11H-pyrido[2,1-b]quinazolin-11-one (II). The compound (II) reacted with hydrazine hydrate to give N-{11H-pyrido[2,1-b]quinazolin-11-one-9-yl} hydrazine (III). The compound (III) reacted with various aromatic aldehydes to yield the hydrazones (IVa-p). The
doi:10.33899/rjs.2019.159971
fatcat:rqu5thxbqzaz3kjc2r2vh7uu44