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Highly selective bis(imino)pyridine iron-catalyzed alkene hydroboration
Jennifer V Obligacion1, Paul J Chirik
1Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA.
Iron dinitrogen complexes catalyze anti-Markovnikov hydroboration of alkenes with high efficiency. These iron compounds outperform precious metal catalysts and other iron species in scope and performance.
Area of Science:
- Organometallic Chemistry
- Catalysis
Background:
- Bis(imino)pyridine iron complexes are effective catalysts.
- Hydroboration is a key organic transformation.
Purpose of the Study:
- To investigate the catalytic activity of iron dinitrogen complexes in alkene hydroboration.
- To compare their performance against existing catalytic systems.
Main Methods:
- Synthesis and isolation of bis(imino)pyridine iron dinitrogen complexes.
- Catalytic testing in the hydroboration of various alkenes.
Main Results:
- High activity and selectivity for anti-Markovnikov hydroboration of terminal, internal, and geminal alkenes.
- Demonstrated advantages in substrate scope and performance over precious metal catalysts.
- Superior performance compared to previously reported in situ generated iron species.
Conclusions:
- Isolated iron dinitrogen complexes are highly effective catalysts for alkene hydroboration.
- These iron complexes offer a promising alternative to precious metal catalysts.
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