New Functional Alkoxysilanes and Silatranes: Synthesis, Structure, Properties, and Possible Applications
Adamovich S.N. Nalibayeva A.M. Abdikalykov Y.N. Ushakov I.A. Oborina E.N. Rozentsveig I.B.
September 2023Multidisciplinary Digital Publishing Institute (MDPI)
International Journal of Molecular Sciences
2023#24Issue 18
The aza-Michael reaction of 3-aminopropyltriethoxysilane (1) and -silatrane (2) with acrylates affords functionalized silyl-(3–8) and silatranyl-(9–14) mono- and diadducts with up to a 99% yield. Their structure has been proved with IR and NMR spectroscopies, mass spectrometry and XRD analysis. The hydrolytic homo-condensation of triethoxysilanes 3–5 gives siloxanes 3a–5a, which form complexes with Ag, Cu, and Ni salts. They are also able to adsorb these metals from solutions. The hetero-condensation reaction of silanes 4–8 with OH groups of zeolite (Z), silica gel (S) and glass (G) delivers the modified materials (Z4, S7, G4, G5, G7, G8, etc.), which can adsorb ions of noble metal (Au, Rh, Pd: G4 + Au, G5 + Pd, G7 + Rh). Thus, the synthesized Si-organic polymers and materials turned out to be promising sorbents (enterosorbents) of noble, heavy, toxic metal ions and can be applied in industry, environment, and medicine.
3-aminopropylsilatrane , 3-aminopropyltriethoxysilane , acrylates , aza-Michael reaction , complexation , sorption
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A.E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Street, Irkutsk, 664033, Russian Federation
D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142 Kunayev Street, Almaty, 050010, Kazakhstan
A.E. Favorsky Irkutsk Institute of Chemistry
D.V. Sokolsky Institute of Fuel
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