Cobalt and Iron Stabilized Ketyl, Ketiminyl and Aldiminyl Radical Anions.

Sieg, Grégoire; Pessemesse, Quentin; Reith, Sascha; Yelin, Stefan; Limberg, Christian; Munz, Dominik; Werncke, C. Gunnar

Carbonyl and iminyl based radical anions are reactive intermediates in a variety of transformations in organic synthesis. Herein, the isolation of ketyl, and more importantly unprecedented ketiminyl and aldiminyl radical anions coordinated to cobalt and iron complexes is presented. Insights into the electronic structure of these unusual metal bound radical anions is provided by X‐Ray diffraction analysis, NMR, IR, UV/Vis and Mössbauer spectroscopy, solid and solution state magnetometry, as well as a by a detailed computational analysis. The metal bound radical anions are very reactive and facilitate the activation of intra‐ and intermolecular C−H bonds.

RADICAL anions; MOSSBAUER spectroscopy; COBALT; IRON; ORGANIC synthesis; ELECTRONIC structure

Chemistry - A European Journal, 2021, Vol 27, Issue 67, p16760

0947-6539

Academic Journal

10.1002/chem.202103096