Iron-Catalyzed
1,2-Selective Hydroboration of <i>N</i>‑Heteroarenes
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Abstract
A N<sub>2</sub>-bridged diiron complex
[Cp*(Ph<sub>2</sub>PC<sub>6</sub>H<sub>4</sub>S)Fe]<sub>2</sub>(μ-N<sub>2</sub>) (<b>1</b>) has been found
to catalyze the hydroboration
of <i>N</i>-heteroarenes with pinacolborane, giving <i>N</i>-borylated 1,2-reduced products with high regioselectivity.
The catalysis is initiated by coordination of <i>N</i>-heteroarenes
to the iron center, while the B–H bond cleavage is the rate-determining
step
