The current study involves preparation a number of 1,2,4-Triazol derivatives by the reaction of 4-amino-5-phenyl-4H-1,2,4-triazole-3-thiol (A) with different aromatic aldehydes to form the Schiff bases (B, C, D and E). In addition preparation of different complexes (A1, A2, B1 and B2) were prepared from the reaction of A and B Ligands with Ni (II) and Cu (II) metals.
Various chemicals are discharged into the aquatic environment as industrial liquid wastes. Some of them are not only toxic but also partly biodegradable; therefore they are not easily removed in biological wastewater treatment plants. That is why there is a need to develop effective methods for the degradation of organic pollutants, render into less harmful compounds (non aromatic) or to their complete mineralization [1].Conventional processes to remove these pollutants involve physical, chemical, and biological methods.
Some ionic liquids were investigated for abilities to capture COalone or with added some catalysts at room temperature under atmospheric pressure to increase the capacity of ionic liquids to capture
carbon dioxide gas some catalysts were found effective such as :- Hydrated aluminum nitrate/urea ionic liquid with added CaO and n NaOH , monoethanolamine and ammonium chloride were added to
Background:
Diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia resulting from defects in insulin secretion, insulin action,or both, the chronic hyperglycemia of diabetes is associated with longterm damage, dysfunction and failure of various organs, especially the eyes, kidneys, nerves, heart, and blood vessels that impose a tremendous burden on the individual with diabetes and on the health care system.Objective:
1-In this study, some organic compounds contain hetero-atoms were synthesized by several steps as following:
First; 4-phenylazoaniline [1] and 4-phenyl azophenol [17] were prepared in two steps:
The treatment of a primary aromatic amine (aniline) with nitrous acid to form a diazonium salt. Coupling reaction of aromatic diazonium ion with activated aromatic ring (aniline, phenol).
Five transition metal complexes of Ni(II), Cu(II), Zn(II), Cd(II) and Sn(II) with {4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol}, as a ligand (L) has been prepared in alcoholic medium.
These complexes are:
1. Bis(4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol) Nickel(II), Ni(L)
.
2. Bis(4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol) Cupper(II), Cu(L)
.
3. Bis(4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol) Zinc(II), Zn(L)
.
4. Bis(4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol) Cadmium(II), Cd(L)
.
This piece of research includes constructing and characterizing two kinds of ion-selective electrodes (ISEs) based on PVC matrix membrane.First, four ion-selective electrodes for clarithromycin (CLM) which based on clarithromycin-tetraphenylborate (CLM-TPB) ion-pair complex as the electro-active materials were prepared. Second, four ion-selective electrodes for clarithromycin which based on using clarithromycintetraiodomercurate (CLM-TIM) ion-pair complex as the electro-active materials were also prepared.
In this study, some of five membered and fused heterocyclic derivatives containing 1,2,4- Triazole, 1,3,4- Thiadiazole and triazolo [3,4-b] thiadiazine were synthesized by several cyclization steps.2, 5-dimercapto-1, 3, 4-thiadiazole [A1] was obtained by the reaction of hydrazine hydrate with carbon disulfide. Compound [A1] was reacted with Ethyl chloro acetate in presence of alkali ethanol to give 2, 5-bis (thioethylacetate 2, 2', diyl)1,3,4 thiadiazole [A2].
1- This work involves preparation of some organic compounds contain hetero-atoms, that starting from (E)-2-benzylidene hydrazine carbothioamide [1] to (E)-5-(2-chloro ethyl thio)-N-(1-phenyl ethylidene)-1,3,4-thiadiazol-2-amine [21], are summarized below:
- First set of organic compounds was prepared in one step by a condensation reaction between the carbonyl group of aldehydes or ketones and the amino group of Thiosemicarbazide derivatives to produce the compounds:
[1]- (E)-2-benzylidene hydrazine carbothioamide.
Aluminum chloride-urea ionic liquid was investigated by Lewis acid-base titration with chloride ions for its active species concentration with the aide of electronic spectroscopy.
