Dual-ionic imidazolium salts to promote synthesis of cyclic carbonates at atmospheric pressure
Abstrak
Novel dual-ionic imidazolium salts are shown to display excellent catalytic activity for cycloaddition of carbon dioxide and epoxides under room temperature and atmospheric pressure (0.1 MPa) without any solvent and co-catalyst leading to 96.1% product yield. It can be reused five times to keep the product yield over 90%. These intriguing results are attributed to a new reaction mechanism, which is supported by theoretical calculations along with the measurements of 13C NMR spectrum and Fourier transform infrared spectroscopy (FT-IR). The excellent catalytic activity can be traced to a CO2-philic group along with an electrophilic hydrogen atom. Our work shows that incorporation of CO2-philic group is an feasible pathway to develop the new efficient ionic liquids.
Topik & Kata Kunci
Penulis (9)
Tengfei Wang
Danning Zheng
Beibei An
Yi Liu
Tiegang Ren
Hans Ågren
Li Wang
Jinglai Zhang
Mårten S.G. Ahlquist
Akses Cepat
- Tahun Terbit
- 2022
- Sumber Database
- DOAJ
- DOI
- 10.1016/j.gee.2021.02.011
- Akses
- Open Access ✓