Hydrogensulphate ionic liquids as an efficient catalyst for the synthesis of cyclic carbonates from carbon dioxide and epoxides was written by Jasiak, Katarzyna;Siewniak, Agnieszka;Kopczynska, Katarzyna;Chrobok, Anna;Baj, Stefan. And the article was included in Journal of Chemical Technology and Biotechnology in 2016.Electric Literature of C10H20N2O4S The following contents are mentioned in the article:
The synthesis of cyclic carbonates from CO2 and epoxides using the two-component catalytic system consisting of the ionic liquid based on the imidazolium cation and the hydrogensulfate anion and an aqueous solution of zinc iodide was described. The cyclic carbonates were obtained with high yields (69-99%) and selectivities (>99%) under the optimized conditions: 120 °, 2 MPa of CO2, without utilization of any organic solvents. The new and effective catalytic system allowed one to obtain cyclic carbonates in high yields and could be reused several times without significant loss of activity. Therefore, the proposed method seems to be useful for practical applications. 2016 Society of Chem. Industry. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Electric Literature of C10H20N2O4S).
1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Electric Literature of C10H20N2O4S
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem