Some new 2-alkyl-5-mercapto-1,3,4-Oxadiazoles and 3-alkyl-5-mercapto-1,2,3-4H triazoles were synthesized from hydrazides of acid oil and oil recovered from spent bleaching earth. These newly synthesized compounds were characterized on the basis of elemental analysis and evaluated for biological properties. Certain derivatives exhibited fairly high antibacterial and antifungal activities when co...

Dynamic proteoids are dynamic covalent analogues of proteins, which can be used as new adaptive biomaterials. We designed and synthesized a range of sugar-containing dynamic proteoid biodynamers based on the polycondensation of different types of amino acid and dipeptide hydrazides with a biological aliphatic dialdehyde and a nonbiological aromatic dialdehyde. By using the saccharide-based dial...

Abstract The present work highlights the corrosion inhibition action of two indole-3-hydrazides with varying alkyl chain lengths: 2-(1 H -indol-3-yl)acetohydrazide (IAH) and 4-(1 -indol-3-yl)butanehydrazide (IBH) against mild steel (MS) in 0.5 M hydrochloric acid (HCl) solution using electrochemical gravimetric measurement methods. Both IAH IBH behaved as mixed-type inhibitors, their anticorros...

In the reaction of hydrazide of thiophene-2-acetic acid (1) with isothiocyanates, the respective thiosemicarbazides 2a-g were obtained. Further cyclization with 2% NaOH led to formation of 4-substituted-3-(thiophene- 2-yl-methyl)-Delta2-1,2,4-triazoline-5-thiones (3a-g). These compounds showed promising antimycotic activity.

The condensation of the terminal carboxyl group of the deglucoteicoplanin (TD) with various substituted hydrazines produced hydrazide derivatives having different physico-chemical properties. This chemical modification of the carboxyl function does not affect the ability of teicoplanin antibiotics to interfere in bacterial cell-wall synthesis. The antibacterial activity of deglucoteicoplanin hy...

This work includes synthesis a series of some new derivatives triazine from reaction between the sulfur amino acid (L-cysteine) and different aldehydes in dry ethanol to obtain thiazolidine ring as diastereo isomers (Cis Trans)- 2- alkylthiazolidine-4- carboxylic acids (1).
 The (1) suffered esterfication presence drops concentrated sulfuric catalyst give esters :
 ethyl alkylthiazoli...