Intramolecular C–N bond activation by a transient boryl anion

Abstract

Electrophilic or nucleophilic? Reduction of a bulky boron bromide with lithium leads to C–N bond cleavage though a nucleophilic boryl anion. In contrast, reaction with an anionic iron carbonyl salt leads to cooperative reduction of CO.

Mechanochemical synthesis of iron aluminyl complexes

“…4). The compound is isostructural to the boron analogue recently reported by us 26 and similar to the benzylidynebridged diiron complex previously reported by Sitzmann and co-workers. 27 It can be envisioned that [{( Dipp NON)AlOC(µ-FeCp)} 2 ] may be formed from the iron aluminyl complex ( Dipp NON)AlFp, by simple loss of a carbonyl ligand from each iron centre and dimerisation.…”

“…Nucleophilic reactivity of the [Fp] − carbonyl ligands has been previously reported, 28 and a similar mechanism was proposed for the boron analogue. 26…”