Synthesis of the Multinuclear Cobaloxime Complexes via Click Chemistry as Catalysts for the Formation of Cyclic Carbonates from Carbon Dioxide and Epoxides

Journal of Chemical Sciences

Mahmut Ulusoy¹  Armagan Keles¹  Ahmet Kilic1¹  Mustafa Durgun¹  Emine Aytar¹ 

[1] Chemistry Department, Harran University, 63190, Osmanbey Campus, Sanliurfa, Turkey$$

关键词: Click chemistry;    multinuclear cobaloxime complexes;    carbon dioxide;    epoxides;    cyclic carbonate.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

In this study, the structurally similar multinuclear cobaloxime complexes based on dioxime ligands were synthesized and characterized as trinuclear complexes with respect to varied axial groups. The multinuclear cobaloxime complexes were characterized by 1H, 13C-NMR, FT-IR, UV-Vis, LC-MS spectra, melting point and magnetic susceptibility measurements. These multinuclear cobaloxime complexes have been successfully applied to the synthesis of cyclic carbonates from CO2 and epoxides under optimized conditions and with-out using any solvent. All multinuclear cobaloxime complexes obtained by click chemistry are good catalysts for the cycloaddition of CO2 to different epoxides in the presence of pyridine as a co-catalyst. Additionally, the effects of epoxides, bases, temperature, pressure, and time on the yield of cyclic carbonates were investigated.

【 授权许可】

Unknown