Supplementary Material to Novel Mannich bases bearing pyrazolone moiety. Synthesis, characterization and electrochemical studies

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Synthesis and Antimicrobial Evaluation of Certain Novel Thiazoles

Purpose: This article makes an attempt to synthesize certain compounds containing thiazole and imidazole moieties and screen for the antimicrobial properties. Methods: The novel compounds synthesized were characterized by elemental analysis, IR and 1HNMR spectral data. The antimicrobial activity of novel compounds was evaluated by cup plate method. Results: The compound p-t showed more antibacterial activity than that of the standard. p-hp and p-as showed considerable antibacterial activity. p-t demonstrated higher antifungal activity than that of the standard while p-hp and p-as showed considerable antifungal activity. Conclusion: The antimicrobial activity studies were conducted on certain selected bacteria and fungi. In each case antimicrobial activity of the compounds was compared with that of standards. p-t, p-hp, p-np, p-cp, p-ts and p-as showed considerable antimicrobial activity

A NEW SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF TRACE AMOUNTS OF TITANIUM(IV)

Abstract. A new, rapid, simple, precise and extraction-free spectrophotometric method is proposed for the micro determination of titanium(IV) employing N'-(2-hydroxybenzylidene)-3-oxobutanehydrazide as a reagent. Under the optimum conditions established, the absorbance was found to increase linearly with the concentration of titanium(IV) i

A NEW SPECTROPHOTOMETRIC METHOD FOR THE DETERMINATION OF TRACE AMOUNTS OF TITANIUM(IV)

Abstract. A new, rapid, simple, precise and extraction-free spectrophotometric method is proposed for the micro determination of titanium(IV) employing N'-(2-hydroxybenzylidene)-3-oxobutanehydrazide as a reagent. Under the optimum conditions established, the absorbance was found to increase linearly with the concentration of titanium(IV) i

Electrochemical studies of certain 1-(toluenyl sulfonyl )-3- amino -4-(4’-substituted aryl hydrazono )-2-pyrazolin -5-ones

The electrochemical behavior of certain1-(Toluenyl sulfonyl)-3-amino-4-(4’-substituted aryl hydrazono)-2-pyrazolin-5-ones were studied at the droppingmercury electrode by employing DC polarography.The variables that influencethe electrode process were extensivelystudied. All compounds under investigationgave two well-defined polarographicwaves. The mechanism for the electrodeprocess was proposed in acid as well asin basic media