Substituted Thiadiazole, Oxadiazole, Triazole and Triazinone as Antimicrobial and Surface Activity Compounds

Azo dyes containing 1,3,4-thiadiazole fragment: synthesis and properties

New 1,3,4-thiadiazole derivatives containing a diazenyl group, as well as simultaneously a diazenyl and an imino group were synthesized.

Synthesis of an Efficiency Heterocyclic Systems, Surface Properties and Potential Pharmacological Interest

Synthesis of biologically active heterocyclic derivatives with the related fused systems incorporating a long chain of a fatty compound was described via the reactions of 5-amino-N-octadecyl-1H-pyrazole-4-carboxamide 4 with appropriate reagents namely, enaminones, and β-diketones. Hydroxylation of the synthesized compounds using a number of moles of propylene oxide gave nonionic surface-active agents having a good solubility in water, easy to handle, good biodegradability and announced surface properties that revealed the importance of their applications in avoiding pollution problems, and making them safe for humans and the environment. The surface properties and antimicrobial activity of these compounds were investigated, which showed low toxicity, high efficiency in the surface and biological activities. Therefore, these compounds may be exhibit capable potential in industry applications and can be used in the manufacture of cosmetics, textiles, moderate emulsifiers, dyes, pesticides and drugs.

Synthesis, Surface Parameters, and Biodegradability of Water-soluble Surfactants for Various Applications

The synthesis of water-soluble heterocyclic compounds was verified on the basis of nonionic surfactants for use as surface-active agents. Surface characteristics such as surface and interfacial tensions, cloud point, wetting time, emulsion stability, foaming height and foaming stability were measured for these surface factors in aqueous solutions. In addition, the critical micelle concentration (CMC), the surface pressure at CMC (π_cmc), the effectiveness of surface tension reduction (pC₂₀), the maximum surface concentration (Γ_ma.) and the minimum area/molecule at the aqueous solution/air interface (A_min) were calculated. Moreover, the biodegradability for these nonionic surfactants has been investigated. Furthermore, the antimicrobial evaluation has been evaluated with some surfactants that have demonstrated a potent cytotoxicity as antibacterial, antifungal and anticancer. These surfactants have a good water solubility, low toxicity, environmentally friendly environment, high foam, good emulsifier and easy production that will be used them in various fields such as medical drugs, insecticides, detergents, emulsifiers, cosmetics, inks clothing, leather industry and oil recovery.

Synthesis of Five and Six-Membered Heterocycles Using Activated Nitriles for Industrial Applications

The aim of this study is a synthesis of new bioactive heterocyclic compounds incorporated fatty chain for use in different industrial applications. Cyanoacetamide derivative (2) was successfully transferred into five and six membered heterocyclic derivatives by the reaction with various chemical reagents. Addition number of moles of propylene oxide to these compounds gave nonionic surface-active agents having a good solubility, biodegradability and hence lowers the toxicity to human beings and becomes environmentally friendly. The antimicrobial and surface activities were investigated that showed the most of them have pronounced activity, which makes them suitable for diverse applications like the manufacturing of drugs, pesticides, emulsifiers, cosmetics, etc.

Synthesis of Pharmacological Heterocyclic Derivatives Based Surfactants

Synthesis of chromenopyrimidine derivatives and the related fused system carried out by the reaction of chromene derivative 1 with various reagents under suitable reaction conditions. Condensation of stearoyl chloride with these heterocycles, then, propoxylated the products using propylene oxide to produce surface active agents having a twofold capacity as surface and antimicrobial dynamic specialists which may be served in the production of medications, pesticides, beautifying agents or may be utilized as an antimicrobial. Some of the surface properties and antimicrobial activity were resolved.