Niobium(<scp>v</scp>) chloride and imidazolium bromides as efficient dual catalyst systems for the cycloaddition of carbon dioxide and propylene oxide
作者:Michael E. Wilhelm、Michael H. Anthofer、Robert M. Reich、Valerio D'Elia、Jean-Marie Basset、Wolfgang A. Herrmann、Mirza Cokoja、Fritz E. Kühn
DOI:10.1039/c3cy01057k
日期:——
The application of niobium(V) chloride and several imidazolium bromides as catalyst systems for the cycloaddition of propyleneoxide (PO) with carbon dioxide to propylene carbonate (PC) is reported. A set of 31 different imidazolium bromides has been synthesized with varying substituents at all five imidazolium ring atoms, of which 17 have not been reported before. The impact of different substitution