Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
Base-Catalyzed Ring-Opening of Epoxides02:26

Base-Catalyzed Ring-Opening of Epoxides

Due to their highly strained structures, epoxides can readily undergo ring-opening reactions through nucleophilic substitution, either in the presence of an acid or a base. The nucleophilic substitution reactions in the presence of acid are called acid-catalyzed ring-opening reactions, and nucleophilic substitution reactions in the presence of a base are called base-catalyzed ring-opening reactions. Epoxides undergo base-catalyzed ring-opening reactions in the presence of a strong nucleophile...
Acid-Catalyzed Ring-Opening of Epoxides02:24

Acid-Catalyzed Ring-Opening of Epoxides

Epoxides that are three-membered ring systems are more reactive than other cyclic and acyclic ethers. The high reactivity of epoxides originates from the strain present in the ring. This ring strain acts as a driving force for epoxides to undergo ring-opening reactions either with halogen acids or weak nucleophiles in the presence of mild acid. The acid catalyst converts the epoxide oxygen, a poor leaving group, into an oxonium ion, a better leaving group, making the reaction feasible. The...
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)00:53

Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)

Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
Preparation of Epoxides03:00

Preparation of Epoxides

Overview
Epoxides result from alkene oxidation, which can be achieved by a) air, b) peroxy acids, c) hypochlorous acids, and d) halohydrin cyclization.
Epoxidation with Peroxy Acids
Epoxidation of alkenes via oxidation with peroxy acids involves the conversion of a carbon–carbon double bond to an epoxide using the oxidizing agent meta-chloroperoxybenzoic acid, commonly known as MCPBA. Since the O–O bond of peroxy acids is very weak, the addition of electrophilic oxygen of peroxy acids to...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

The Pivotal Step of Structure Formation and Oil-Binding Capacity of Polyglucosamine.

Polymer science & technology (Washington, D.C.)·2026
Same author

Cyclodextrin-modified core-shell particle synthesis and photonic crystal film formation for redox-mediated surface interaction.

Journal of colloid and interface science·2026
Same author

Hierarchically Porous Coatings for Cellulose Fibers by Core-Shell Particle Templating.

Macromolecular rapid communications·2026
Same author

Maximizing Populus tremula biomass conversion: synergistic pretreatment effects on sugars release and lignin recovery.

Bioresources and bioprocessing·2026
Same author

Water-Induced Transparency Loss in Styrene Butadiene Block Copolymers: Mechanism, Morphology, and Predictive Modeling.

Macromolecules·2026
Same author

High-Velocity Impact of Polymer Aerosol Particles on Soft Substrates: Experiments and Simulations.

Langmuir : the ACS journal of surfaces and colloids·2025
Same journal

Harnessing Naphthalimide Scaffolds for Sustainable CO<sub>2</sub> Utilization: A Metal-, Halide-, and Solvent-Free Photocatalytic CO<sub>2</sub> Cycloaddition via Sequential Two-Photon Activation.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Protein-Independent Liquid-Liquid Phase Separation of Adenosine Triphosphate Under Crowded Conditions.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

A Unified Approach for the Synthesis of Conformationally Locked and sp<sup>2</sup>-sp<sup>3</sup> Fused Hybrids.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Decoding Heptazine Architectures: From Molecular Association to Structural Insight.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

An Electrophilic Uridine Building Block for Post-Synthetic RNA Modification as Exemplified for Spin Labeling.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same journal

Recent Advances in Pd-Catalyzed Directed meta-C-H Olefination: Strategies and Outlook.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
See all related articles

Related Experiment Video

Updated: May 10, 2026

Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes
05:48

Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes

Published on: November 21, 2017

Oxidation-triggered ring-opening metathesis polymerization.

Roman Savka1, Sabine Foro, Markus Gallei

  • 1Organometallic Chemistry, Technische Universität Darmstadt, Petersenstrasse 18, 64287 Darmstadt, Germany.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|June 25, 2013
PubMed
Summary
This summary is machine-generated.

Eight new N-Hoveyda-type ruthenium complexes featuring ferrocene were synthesized. Two complexes exhibit switchable catalysis for ring-opening metathesis polymerization, demonstrating potential for controlled olefin transformations.

Keywords:
ironolefin metathesisoxidationpolymerizationring-opening metathesis polymerizationruthenium

More Related Videos

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization
12:19

Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization

Published on: November 29, 2018

Related Experiment Videos

Last Updated: May 10, 2026

Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes
05:48

Controlled Photoredox Ring-Opening Polymerization of O-Carboxyanhydrides Mediated by Ni/Zn Complexes

Published on: November 21, 2017

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
08:12

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

Published on: December 16, 2022

Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization
12:19

Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization

Published on: November 29, 2018

Area of Science:

  • Organometallic Chemistry
  • Catalysis
  • Polymer Science

Background:

  • Ruthenium-NHC complexes are vital catalysts in olefin metathesis.
  • Ferrocene-containing ligands can modulate catalyst properties through redox activity.
  • Hoveyda-type catalysts offer unique structural features for catalytic applications.

Purpose of the Study:

  • To synthesize novel N-Hoveyda-type ruthenium complexes incorporating ferrocene units.
  • To investigate the redox properties and structural characteristics of these new complexes.
  • To evaluate their performance as catalysts in ring-opening metathesis polymerization (ROMP).

Main Methods:

  • Synthesis of eight new N-Hoveyda-type complexes via reaction of [RuCl2(NHC)(Ind)(py)] with substituted ferrocenes.
  • Electrochemical studies to determine redox potentials.
  • X-ray crystallography to elucidate the structures of reduced and oxidized forms.
  • ROMP of cis-cyclooctene (COE) to assess catalytic activity.

Main Results:

  • Successful synthesis of eight new ferrocene-functionalized N-Hoveyda-type ruthenium complexes in high yields (67-92%).
  • All complexes showed iron-centered oxidation near E=+0.5 V, with minimal impact on the ruthenium center.
  • Two complexes demonstrated switchable catalytic activity in COE polymerization: inactive in reduced state, active in oxidized state.

Conclusions:

  • Novel ferrocene-containing N-Hoveyda-type ruthenium complexes were developed.
  • Redox state of the ferrocene moiety influences catalytic activity in ROMP for specific complexes.
  • These findings open avenues for designing redox-switchable olefin metathesis catalysts.