A Highly Lewis Acidic Strontium ansa‐Arene Complex for Lewis Acid Catalysis and Isobutylene Polymerization

This is the authors' abstract. We don't add key points for this paper.

The potential of a dicationic strontium ansa-arene complex for Lewis acid catalysis has been explored. The key to its synthesis was a simple salt metathesis from SrI₂ and 2 Ag[Al(ORF )₄ ], giving the base-free strontium-perfluoroalkoxyaluminate Sr[Al(ORF )₄ ]₂ (ORF =OC(CF₃ )₃ ). Addition of an ansa-arene yielded the highly Lewis acidic, dicationic strontium ansa-arene complex. In preliminary experiments, the complex was successfully applied as a catalyst in CO₂ -reduction to CH₄ and a surprisingly controlled isobutylene polymerization reaction.