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Solid acidic FeCl3/Bentonite catalyzed solvent-free condensation: Synthesis, spectral studies and antimicrobial activities of some aryl hydrazine Schiff’s bases

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Ananthi V., Rajalakshmi K., Muthuvel I., Thirunarayanan G.
Annales Universitatis Mariae Curie-Skłodowska, sectio AA – Chemia
|
2016
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vol. 71
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issue 2
EN
Some aryl hydrazide derivatives have been synthesized including 1-(3-chloro-4-nitrophenyl)-2-(3-substituted benzylidene) hydrazines by  FeCl3/Bentonite catalyzed solvent-free  condensation of  substituted phenyl hydrazine and aldehydes under microwave irradiation.  The yields of the hydrazides are more than 70%.  The synthesized hydrazides are characterized by the physical constants, micro analysis and spectroscopic data.  Effect of catalyst,  solvent effect  substituent effect and optimization of the catalyst was studied by the percentage of isolated yields.  From the catalyst optimization, the present study catalyst gave the better yield of products.  The antimicrobial activities of all synthesized of 1-(3-chloro-4-nitrophenyl)-2-(3-substituted benzylidene) hydrazines have been evaluated using Bauer-Kirby disc diffusion method.
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