TY - JOUR
T1 - Triazole based cobalt catalyst for CO2 insertion into epoxide at ambient pressure
AU - Suleman, Suleman
AU - Younus, Hussein A.
AU - Ahmad, Nazir
AU - Khattak, Zafar A.K.
AU - Ullah, Habib
AU - Park, Jihae
AU - Han, Taejun
AU - Yu, Baoyi
AU - Verpoort, Francis
PY - 2020/2/5
Y1 - 2020/2/5
N2 - Over the past decades, a lot of efforts have been made for the fixation of carbon dioxide (CO2) into epoxide for the synthesis of industrially important cyclic carbonates. Here, a cobalt(II) complex based on triazole, namely Co(II)-1,2,3-1H-triazole-4-carboxylate, was synthesized, fully characterized by FTIR, NMR, mass spectrometry, and single crystal X-ray diffraction, and used as a catalyst for the cycloaddition of CO2 to epoxides. The catalytic studies demonstrated that the catalyst is highly active for the CO2 fixation, with high turnover number (TON, 85 × 103) even without the use of solvent and at ambient pressure (1 bar) to produce a variety of different cyclic carbonates depending on the epoxide. Remarkably, the catalyst was used continuously further by the addition of a fresh amount of the substrate within the same reaction mixture for at least five successive reaction cycles without any loss in the catalytic activity.
AB - Over the past decades, a lot of efforts have been made for the fixation of carbon dioxide (CO2) into epoxide for the synthesis of industrially important cyclic carbonates. Here, a cobalt(II) complex based on triazole, namely Co(II)-1,2,3-1H-triazole-4-carboxylate, was synthesized, fully characterized by FTIR, NMR, mass spectrometry, and single crystal X-ray diffraction, and used as a catalyst for the cycloaddition of CO2 to epoxides. The catalytic studies demonstrated that the catalyst is highly active for the CO2 fixation, with high turnover number (TON, 85 × 103) even without the use of solvent and at ambient pressure (1 bar) to produce a variety of different cyclic carbonates depending on the epoxide. Remarkably, the catalyst was used continuously further by the addition of a fresh amount of the substrate within the same reaction mixture for at least five successive reaction cycles without any loss in the catalytic activity.
KW - Carbon dioxide
KW - Cyclic carbonates
KW - Cycloaddition
KW - Epoxide
KW - Homogeneous catalysis
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U2 - 10.1016/j.apcata.2019.117384
DO - 10.1016/j.apcata.2019.117384
M3 - Article
AN - SCOPUS:85077204179
VL - 591
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
SN - 0926-860X
M1 - 117384
ER -