CHEMICAL PROBLEMS

Abstract The article investigates the bactericidal-inhibitory properties against microbiological corrosion of imidazoline bromide complex synthesized based on norbornene carboxylic acid and diethylenetriamine. For this purpose, in the first stage, imidazoline was synthesized from the interaction of norbornene carboxylic acid with diethylenetriamine. In the second step, an inorganic anionic complex was obtained from the reaction of […]

Abstract The presented article is devoted to the study of oil-collecting and oil-dispersing properties of the quaternary ammonium salt (DAD), formed by hexadecane (6-DT) and heptadecanoic acid (7-DT) with triethanolamine (TEA) {triethanolammonium salt of hexadecanoic acid (6-DAD) and triethanolammonium salt of heptadecanoic acid (7-DAD)}, as well as its use as an analytical reagent for the […]

Abstract Fenofibrate is a medication derived from fibric acid that is used to treat severe cases of high triglyceride levels and a combination of abnormal lipid levels in individuals who have not shown improvement with nonpharmacological treatments. As part of this research, novel classes of Fenofibrate derivatives were synthesized and evaluated in vitro as anticancer […]

Abstract In this work transvinylation reactions with vinyl acetate were carried out to synthesize vinyl esters of some dicarboxylic acids. The divinyl esters of dicarboxylic acids such as adipic, glutaric, succinic, phthalic, isophthalic and terephthalic were synthesized. The transvinylation reactions were conducted using activating reagents. The carboxylic acids were activated by 2-chloro-4,6-dimethoxy-1,3,5-triazine. Using potassium tert- […]

Abstract Schiff base complexes were known for their various applications in different fields, due to their interesting chemical and physical properties. In this work, Bis(4-dimethylamino)bezylidene) ethanebis(thioamide) (DMABT) as Schiff base ligands was prepared via condensation reaction between 4-(dimethyl amino) benzaldehyde and dithioximade Then, the resulted ligand coordinated with central elements Co(II), Cu(II). and Zn(II). The […]

Abstract This article examines the optimal conditions for synthesizing a new type of corrosion inhibitor based on p-paraphenylenediamine, formalin, and glycine. It was determined that the ideal mole ratio of the initial substances is 1:2:2 mol, and the optimal temperature range is between 40 and 65 degrees Celsius. The reaction efficiency under these optimal conditions […]

Abstract New complex compounds of palladium (II) with the biologically active ligand 2-ethyl-6 methyl-3- hydroxypyridine – mexidol were synthesized in acidic (pH=5.3) and slightly alkaline (pH=7.5) media, respectively, of the following composition: (C8H12ON+)2[PdCl4] – (HL)2[PdCl4] (I) and [Pd(C8H11NO)2Cl2] – [PdL2Cl2] (II). In complex I, two ligand molecules are protonated and occupy the outer coordination sphere […]

Abstract Biodiesel is a type of an alternative fuel used in diesel engines, made from renewable raw materials such as vegetable oils. In the article, examines the process of obtaining biodiesel from pomegranate peel and seed oil. Biodiesel was produced in high yield by the method of transesterification of oils obtained from pomegranate peel and […]

Abstract New fluorene Schiff-base derivatives were synthesized from condensation of (1:2) diamine 4,4'-(1- (9H-fluoren-2-yl)-2,2,2-trifluoroethane-1,1-diyl) bis (2-methylaniline) with different aromatic aldehydes such as (2,5-dihydroxybenzaldehyde, salicyldehyde, 5-nitrosalicyldehyde, 4-benzloxybenzaldehyde and indole-3-carboxyldehyde), glacial acetic acid was used in the reaction as a solvent and gave good yield in the range of 82-89%, the end of the reaction was indicated […]

Abstract In this research paper, we successfully synthesized some of E-1-(iodomethy-lene)-8-(aryl)-1,2,7,8- tetrahydro-9H benzo[6,7][1,4]oxazepino [4,5-a] quinazolin-9-one (compounds 3a-f) through electrophilic cyclization of 3-aryl-2-(2-(prop-2-yn-1-yloxy) phenyl)-2,3-dihydroquinazolin-4(1H)-one derivatives (compounds 2a-f) using iodine as an electrophilic source and potassium carbonate as a base in dichloromethane at room temperature in good yield. We optimized the best condition for this reaction with […]