- Synthesis and physicochemical properties of 1-(2-alkylamidoethyl)-2-alkyl- 2-imidazolines based on α,α′-branched carboxylic acids
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Condensation of diethylenetriamine with lauric, 2-ethylhexanoic, and α,α′-branched C10,12-carboxylic acids results in 1-(2-alkylamidoethyl)-2-alkyl-2-imidazolines. A stability of the synthesized compounds relative to the acid and alkaline hydrolysis was studied. Their protonation constants were determined. The effect of the structure of the alkyl substituents on the distribution of the substance between the organic and aqueous phases was examined. The principal possibility of extracting Zn(II), Fe(III), Cu(II), Co(II), Mn(II) chlorides from hydrochloric acid solutions was shown. A mixture of 1-(2-alkylamidoethyl)-2-alkyl-2-imidazolines based on the α,α′-branched carboxylic acids was suggested as a potential extractant of the metal salts from hydrochloric acid and chloride solutions.
- Bondareva,Murinov, Yu. I.
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- Synthesis and biological evaluation of fatty imidazolines
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A series of eight fatty imidazolines were synthesized under microwave-assisted conditions using different fatty acids namely octyl, decyl, dodecyl, tetradecyl and octadecyl, mixed fatty acids prepared from Sterculia foetida (containing cyclopropene-rich fatty acids), coconut (containing medium-chain-rich fatty acids), palm (containing saturated-rich fatty acids) and sunflower (containing unsaturated-rich fatty acids). Coconut, sunflower and non-edible oil S. foetida-based imidazolines were synthesized for the first time. The fatty imidazolines were evaluated for anti-fungal activity and found to be good to excellent (MIC, 4.68-18.75 μg ml-1) against the tested Candida strains as compared with fluconazole (MIC, 16-64 μg ml -1) as standard. The fatty imidazolines also exhibited excellent to moderate anti-bacterial activity (MIC, 4.68-75 μg ml-1) against Staphylococcus aureus MTCC 96, S. aureus MLS 16 MTCC 2940 and Pseudomonas aeruginosa MTCC 2453 as compared with neomycin (MIC, 18.75 μg ml -1) as standard. The cytotoxic evaluation of the imidazolines against different cancer cell lines such as HeLa (Human Cervical Cancer Cell line), A549 (Human Alveolar Adenocarcinoma Cell line), MDA-MB-231& MCF7 (Human Breast Adenocarcinoma Cell line) and Neuro2a (Mouse neuroblastoma cell line) showed excellent cytotoxicity for dodecyl (3b), tetradecyl (3c), octadecyl ( 3d) and coconut (3f)-based imidazolines. Sunflower-based imidazoline (3g) exhibited good anti-cancer activity towards A549, Neuro2a and palm-based imidazoline (3h) towards HeLa, A549 and MCF-7 cell lines. Springer Science+Business Media 2014.
- Satyavani,Mohini,Karuna,Prasad,Ganesh Kumar,Poornima,Sujitha
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p. 3617 - 3623
(2014/08/05)
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