Pyrazole, pyrazolone and enaminonitrile pyrazole derivatives: Synthesis, characterization and potential in corrosion inhibition and antimicrobial applications
Sayed, GH; Azab, ME; Kurls Ekram Anwer; Raouf, MA; Negm, NA;
Abstract
Six pyrazole and pyrazolone derivatives namely: 3-amino-1-phenyl-5-pyrazolone (1), 3-amino-1-(2,4-dinitrophenyl)-5-pyrazolone (2), 1H-pyrazole-3,5-diamine-4-(2-phenyldiazenyl) (3), 1-phenyl pyrazole-3, 5-diamine, 4-[2-(4-methylphenyl) diazenyl] (4), 1H-pyrazole-3,5-diamine, 4-[2-(4-methylphenyl) diazenyl] (5), 5-amino-1,3–diphenyl-1H-pyrazolecarbonitrile (6) were synthesized and evaluated as corrosion inhibitors for copper alloy dissolution in basic medium. Corrosion inhibition evaluation was performed using weight loss, polarization and electrochemical impedance measurements. The results showed that the prepared compounds have high efficiency as corrosion inhibitors for dissolution prevention of copper in NH4OH solution at pH of 9. The prepared compounds were evaluated for their antimicrobial activities against gram positive and gram negative bacteria using inhibition zone diameter measurements. The results revealed that the synthesized compounds have higher antibacterial activities than the conventional bactericide agents. The results of the antimicrobial activities and the corrosion inhibition tendencies of these compounds were correlated to their chemical structures.
Other data
Title | Pyrazole, pyrazolone and enaminonitrile pyrazole derivatives: Synthesis, characterization and potential in corrosion inhibition and antimicrobial applications | Authors | Sayed, GH; Azab, ME; Kurls Ekram Anwer ; Raouf, MA; Negm, NA | Keywords | Pyrazole;Pyrazolone;Copper;Corrosion inhibition;Antimicrobial activity;CARBON-STEEL;MILD-STEEL;SURFACTANTS;COPPER;NANOHYBRIDS;DISSOLUTION;BEHAVIOR;HCL | Issue Date | 2018 | Publisher | ELSEVIER | Journal | Journal of Molecular Liquids | Volume | 252 | Start page | 329 | End page | 338 | ISSN | 0167-7322 | DOI | 10.1016/j.molliq.2017.12.156 | Scopus ID | 2-s2.0-85040006192 | Web of science ID | WOS:000427336800038 |
Attached Files
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
Pyrazole, pyrazolone and enaminonitrile pyrazole derivatives.pdf | 764.06 kB | Adobe PDF | Request a copy |
Similar Items from Core Recommender Database
Items in Ain Shams Scholar are protected by copyright, with all rights reserved, unless otherwise indicated.