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Updated: Jun 29, 2026

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Reactions of strained hydrocarbons with alkene and alkyne metathesis catalysts
Matthew Carnes1, Daniela Buccella, Theo Siegrist
1Department of Chemistry and The Center for Electron Transport in Molecular Nanostructures Columbia University, New York, New York 10027, USA.
Abstract:
Here we describe the metathesis reactions of a strained eight-membered ring that contains both alkene and alkyne functionality. We find that the alkyne metathesis catalyst produces polymer through a ring-opening alkyne metathesis reaction that is driven by the strain release from the monomer. The strained monomer provides unusual reactivity with ruthenium-based alkene metathesis catalysts. We isolate a discrete trimeric species a Dewar benzene derivative that is locked in this form through an unsaturated cyclophane strap.
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