A Missing Relative: A
Hoveyda–Grubbs Metathesis
Catalyst Bearing a Peri-Substituted Naphthalene Framework
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Abstract
Molecular scaffolds of polycyclic aromatic hydrocarbons
can serve
as unique tools to control the molecular and electronic structure
of coordination compounds. Herein, we report the synthesis and properties
of a Hoveyda–Grubbs metathesis catalyst bearing a chelating
benzylidene ligand assembled on peri-substituted naphthalene. In contrast
to other reported naphthalene-based complexes (Barbasiewicz, M.; Grela, K. Chem. Eur. J. 2008, 14, 9330−9337), it exhibits a very fast initiation behavior, attributed to a distorted
molecular structure and reduced π-electron delocalization within
the chelate ring
