Highly recoverable pyridinium-tagged Hoveyda-Grubbs pre-catalyst for olefin metathesis. Design of the boomerang ligand toward the optimal compromise between activity and reusability.
Whereas the boomerang ligand of Hoveyda-Grubbs pre-catalysts can be modified by attachment of a pyridinium tag to its benzylidene moiety, a precise adjustment of the length of the spacer allows the optimum balance to be reached between the activity of the catalyst and its recoverability, exceeding 98% after 6 catalytic runs in the best case.
Rix
Diane
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Sciences Chimiques de Rennes UMR 6226 CNRS, Equipe Chimie Organique et Supramoléculaire, Ecole Nationale Supérieure de Chimie de Rennes, Av. du Général Leclerc, 35700 Rennes, France.
Caïjo
Fréderic
F
Laurent
Isabelle
I
Gulajski
Lukasz
L
Grela
Karol
K
Mauduit
Marc
M