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One-pot three-component synthesis of some new azo-pyrazoline derivatives Hawaiz, Farouq Emam Hussein, Awaz Jamil Samad, Mohammed Kareem Cyclization Benzylation Diazotization Azo-pyrazoline One-pot synthesis Azo-acetophenone The starting material azo-benzyloxy acetophenone (2) has been synthesized in three steps; the direct diazotization of p-aminoacetophenone and its coupling reaction with m-cresol gave azo-acetophenone (1), which was benzylated with p-chlorobenzylchloride to give the starting material (2). The later compound was subjected to the one-pot three-component condensation reaction with substituted benzaldehydes and phenylhydrazine in the presence of sodium hydroxide to afford the target molecule azo-pyrazoline derivatives (3a-e) in high yields and short reaction times. The structures of the synthesized compounds were elucidated by using FT-IR, 1H NMR, 13C NMR and 13C DEPT 135 spectra. Atlanta Publishing House LLC 2014-06-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/979 10.5155/eurjchem.5.2.233-236.979 European Journal of Chemistry; Vol. 5 No. 2 (2014): June 2014; 233-236 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/979/pdf_979