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Hydroboration reactions using transition metal borane and borate complexes: an overview
Koushik Saha1, Sundargopal Ghosh1
1Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India. sghosh@iitm.ac.in.
Dalton Transactions (Cambridge, England : 2003)
|January 20, 2022
Summary
Transition metal borane and borate complexes are key to hydrofunctionalisation reactions. Research highlights their role in hydroboration, showcasing new synthetic methods and structure-reactivity insights.
Area of Science:
- Organometallic Chemistry
- Boron Chemistry
- Catalysis
Background:
- Transition metal borane and borate complexes have seen significant advancements.
- Their application in hydrofunctionalisation reactions, particularly hydroboration, is a major focus.
- Numerous boron-containing transition metal complexes with diverse bonding modes have been isolated.
Purpose of the Study:
- To review recent developments in hydroboration reactions utilizing transition metal borane/borate complexes.
- To present novel synthetic methodologies for boron-containing transition metal complexes.
- To provide mechanistic insights into these reactions.
Main Methods:
- Synthesis and characterization of novel transition metal borane/borate complexes.
- Investigation of their reactivity in hydroboration and related reactions.
- Structural and electronic property tuning of ligands to optimize reactivity.
Main Results:
- Demonstrated the crucial role of borate complexes in hydroboration, hydrosilylation, and hydroamination.
- Successfully synthesized and isolated various boron-containing transition metal complexes (e.g., borataallyl, vinylborane, silyl).
- Established a clear link between the structure, reactivity, and utility of these complexes in hydroboration.
Conclusions:
- Transition metal borane and borate complexes offer significant potential in hydrofunctionalisation.
- Fine-tuning ligand properties is essential for developing efficient hydroboration catalysts.
- This field continues to evolve with new synthetic strategies and mechanistic understanding.
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