Carbon‐Carbon Bond Activation at Chromium(I): An 11‐Electron Complex Cleaving Dialkynes
An 11-electron T-shaped chromium(I) complex was obtained by reduction of a PNP-supported chromium(II) iodide complex. Its d<sup>5</sup> high-spin electronic structure was characterized employing paramagnetic NMR, EPR, UV/Vis and magnetic measurements (SQUID). The complex readily reacts with conjugated dialkynes to cleave the internal C-C bond, forming the respective acetylide complexes. Varying the alkyne substituents enabled the isolation and characterization of dinuclear dialkynedichromium intermediates which thermally convert to the products.
Authors
- Joachim Ballmann (ORCID: https://orcid.org/0000-0001-6431-4197)
- Tim Bruckhoff
- Lutz H. Gade (ORCID: https://orcid.org/0000-0002-7107-8169)
- Jonas C. Ott (ORCID: https://orcid.org/0000-0002-2417-1619)
- Felix Braun (ORCID: https://orcid.org/0000-0003-3558-1899)
Institutions
- Heidelberg University (DE)
Publication Details
- Journal
- Angewandte Chemie International Edition
- Published
- 2024-10-28
- DOI
- https://doi.org/10.1002/anie.202418646
- Citations
- 4
- Primary Topic
- Catalytic Cross-Coupling Reactions
- Type
- article
- Field-Weighted Citation Impact
- 1.00
Funders
- Deutsche Forschungsgemeinschaft