Thermal C-H borylation using a CO-free iron boryl complex

New CO-free iron boryl complexes, CpFe(PR3)2(Bpin), are described. The CpFe(PEt3)2(Bpin) derivative is uniquely capable of UV-free arene borylation at 70 °C via a dissociative pathway. Catalytic C-H borylation does not proceed using either monometallic or heterobimetallic schemes, and this failure i...

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Bibliographic Details
Published inChemical communications (Cambridge, England) Vol. 51; no. 25; pp. 5379 - 5382
Main Authors Mazzacano, Thomas J, Mankad, Neal P
Format Journal Article
LanguageEnglish
Published England 28.03.2015
Subjects
Aromatic compounds
Catalysis
Catalysts
Derivatives
Failure analysis
Hydrides
Iron
Pathways
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Summary:New CO-free iron boryl complexes, CpFe(PR3)2(Bpin), are described. The CpFe(PEt3)2(Bpin) derivative is uniquely capable of UV-free arene borylation at 70 °C via a dissociative pathway. Catalytic C-H borylation does not proceed using either monometallic or heterobimetallic schemes, and this failure is rationalized through analysis of relative pKa values for the corresponding iron hydride species.
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ISSN:1359-7345
1364-548X
DOI:10.1039/c4cc09180a