Related Experiment Video
Updated: Aug 4, 2025

Versatile CO2 Transformations into Complex Products: A One-pot Two-step Strategy
Published on: November 9, 2019
Group 13 exchange and transborylation in catalysis.
Dominic R Willcox1, Stephen P Thomas1
1EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, EH9 3FJ, United Kingdom.
Main group elements offer sustainable catalysis alternatives. Group 13 elements, particularly boron, enable new catalytic processes via redox-neutral transborylation reactions, moving beyond traditional transition metals.
Area of Science:
- Inorganic Chemistry
- Catalysis
- Sustainable Chemistry
Background:
- Traditional catalysis relies heavily on rare and toxic transition metals.
- Main group elements present a sustainable alternative due to abundance and lower toxicity.
- Group 13 elements excel in addition reactions but lack redox capabilities for catalysis.
Purpose of the Study:
- To review the catalytic applications of Group 13 elements.
- To highlight the potential of redox-neutral exchange reactions, specifically transborylation.
- To showcase the development of new catalytic processes using main group elements.
Main Methods:
- Focus on Group 13 element exchange reactions, including transborylation.
- Exploration of sigma-bond metathesis mechanisms.
- Review of existing and emerging catalytic processes mediated by Group 13 elements.
Main Results:
- Group 13 elements can mediate catalytic transformations through exchange reactions.
- Transborylation reactions, a subset of these exchanges, are particularly versatile.
- These methods enable the development of novel catalytic systems, moving away from transition metals.
Conclusions:
- Main group catalysis, particularly using Group 13 elements, is a viable and sustainable alternative.
- Redox-neutral processes like transborylation are key to unlocking the catalytic potential of these elements.
- This review highlights the growing importance and diverse applications of main group catalysis.
More Related Videos
Related Concept Videos
Regioselectivity and Stereochemistry of Hydroboration
Hydroboration proceeds in a concerted fashion with the attack of borane on the π bond, giving a cyclic four-centered transition state. The –BH2 group is bonded to the less substituted carbon and –H to the more substituted carbon. The concerted nature requires the simultaneous addition of –H and –BH2 across the same face of the alkene giving syn...
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...
Types of Chemical Reactions: Exchange and Reversible
A special kind of exchange reaction is the oxidation-reduction reaction, or the redox reaction. These reactions involve the transfer of electrons from one compound to another. The electrons in these reactions commonly come from hydrogen atoms, which consist of an electron and a proton. A molecule gives up a...
Hydroboration-Oxidation of Alkenes
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.
Catalysis

