Related Experiment Video
Updated: Jul 14, 2026

Imine Metathesis by Silica-Supported Catalysts Using the Methodology of Surface Organometallic Chemistry
Published on: October 18, 2019
Alkene metathesis: the search for better catalysts
Prashant H Deshmukh1, Siegfried Blechert
1Technische Universität Berlin, Institut für Chemie, Sekretariat C3, Strasse des 17, Juni 135, 10623, Berlin.
Recent advances in alkene metathesis catalysts focus on improving efficiency, selectivity, and sustainability. This review highlights progress, particularly with ruthenium catalysts, addressing catalyst recycling and metal impurities.
Area of Science:
- Organic Chemistry
- Catalysis
- Materials Science
Background:
- Alkene metathesis is a fundamental organic reaction with broad applications.
- Catalyst development is crucial for advancing reaction efficiency and scope.
- Key challenges include activity, selectivity, metal contamination, and recycling.
Observation:
- Significant progress has been made in alkene metathesis catalyst development.
- Ruthenium-based catalysts have emerged as a major focus of recent research.
- Stereoselective metathesis reactions are a particular area of interest.
Findings:
- Modern catalysts exhibit enhanced efficiency and activity.
- Improved substrate scope and selectivity, including stereoselective control, have been achieved.
- Strategies for minimizing metal impurities and enabling catalyst recycling are being developed.
Implications:
- Advances in metathesis catalysis enable more efficient and sustainable synthesis of complex molecules.
- Ruthenium catalysts offer promising solutions for challenging transformations.
- Further development can lead to greener chemical processes and novel material applications.
More Related Videos
12:19Photogeneration of N-Heterocyclic Carbenes: Application in Photoinduced Ring-Opening Metathesis Polymerization
Published on: November 29, 2018
10:39Heterogeneous Removal of Water-Soluble Ruthenium Olefin Metathesis Catalyst from Aqueous Media Via Host-Guest Interaction
Published on: August 23, 2018
Related Concept Videos
Olefin Metathesis Polymerization: Overview
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)
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...
Reduction of Alkenes: Catalytic Hydrogenation
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the surface of...
Preparation of Alkynes: Alkylation Reaction
Alkylation of terminal alkynes with primary alkyl halides in the presence of a strong base like sodium amide is one of the common methods for the synthesis of longer carbon-chain alkynes. For example, treatment of 1-propyne with sodium amide followed by reaction with ethyl bromide yields 2-pentyne.