Activity and stereoselectivity of Ru-based catalyst bearing a fluorinated imidazolinium ligand

Vincenzo Siano 1 , Ilaria D’Auria 1 , Fabia Grisi 1 , Chiara Costabile 1 , and Pasquale Longo 1
  • 1 Dipartimento di Chimica, Università di Salerno Via Ponte Don Melillo, I-84084, Fisciano, Salerno, Italy

Abstract

Grubbs II generation catalyst (3), bearing a fluorinated imidazolinium ligand, was investigated in cross metathesis (CM), ring closing metathesis (RCM) and ring opening polymerization metathesis (ROMP) for a variety of substrates. Kinetic studies showed reduced stability of the catalyst in methylene chloride following the first 15 minutes of reaction preventing a higher efficiency despite the very high activity. Beneficial solvent effects on the catalyst stability were observed by performing RCM in C6F6.

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