| Autor: |
Jiang, Xu, Su, Baogang, Wang, Mingxun, Li, Chunmei, Qi, Chenze, Ma, Dekun, Gou, Faliang |
| Zdroj: |
Journal of CO2 Utilization; November 2022, Vol. 65 Issue: 1 |
| Abstrakt: |
a series of different substituents-modified C2v-symmetric cobaltoporphyrin complexes have been designed, synthesized and applied as efficient catalysts in conjunction with tetrabutylammonium iodide (TBAI) for the cycloaddition of epoxides and carbon dioxide. The porphyrin skeleton architectures with steric and electronic variation would deeply affect their catalytic performance. [5,15-Di(4-methoxyphenyl)porphyrin]cobalt(III) chloride (c-1) is the most effective catalyst under optimal reaction conditions. Foundational kinetic study results catalyzed by catalysts c-1, c-2, c-3and c-4reveal that the catalytic performance of electron-donating group-modified cobaltoporphyrin is better than it of electron-withdrawing group-modified ones, and high steric hindrance has a minor negative impact to its catalytic performance. |
| Databáze: |
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