Synthesis and antimicrobial evaluation of some pyrazole derivatives |
| |
Authors: | Sharshira Essam Mohamed Hamada Nagwa Mohamed Mahrous |
| |
Institution: | Department of Chemistry, Faculty of Science, Alexandria University, Alexandria 21321, Egypt. dressamsharshira@yahoo.com |
| |
Abstract: | Reaction of a series of (E)-3-phenyl-4-(p-substituted phenyl)-3-buten-2-ones with p-sulfamylphenyl hydrazine in glacial acetic acid gave the corresponding hydrazones, subsequent treatment of which with 30% HCl afforded pyrazole-1-sulphonamides. On the other hand, refluxing of chalcones with either thiosemicarbazide or isonicotinic acid hydrazide in ethanol containing a few drops of acetic acid gave pyrazoline-1-thiocarboxamides and isonicotinoyl pyrazolines, respectively. The structures of the synthesized compounds were determined on the basis of their elemental analyses and spectroscopic data. The antimicrobial activity of the newly isolated heterocyclic compounds was evaluated against Gram-positive, Gram-negative bacteria and fungi. Most of the compounds showed a moderate degree of potent antimicrobial activity. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|