Fischer carbene complexes of iridium(I) for application in catalytic transfer hydrogenation
Ramollo, G. Kabelo; Strydom, Ian; Fernandes, Manuel A.; Lemmerer, Andreas; Ojwach, Stephen O.; van Wyk, Juanita L.; Bezuidenhout, Daniela I. (2020-03-26)
Ramollo, G., Strydom, I., Fernandes, M., Lemmerer, A., Ojwach, S., van Wyk, J., Bezuidenhout, D., Fischer Carbene Complexes of Iridium(I) for Application in Catalytic Transfer Hydrogenation. Inorg. Chem. 2020, 59, 7, 4810–4815. https://doi.org/10.1021/acs.inorgchem.0c00079
© 2020 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
https://creativecommons.org/licenses/by/4.0/
https://urn.fi/URN:NBN:fi-fe2020060240150
Tiivistelmä
Abstract
New examples of the very rare class of iridium(I) Fischer carbene complexes (FCCs) are reported from the facile transmetalation from group 6 FCCs. Postcomplexation modification of either the carbene ligand or the ancillary coligands results in a tunable IrI metal center, for unprecedented application as a (pre)catalyst in a benchmark transfer hydrogenation reaction. The introduction of an aminocarbene ligand with a pendant N-donor moiety capable of hemilabile coordination yielded the best catalytic results with turnover frequencies reaching 445 h–1 and requiring 0.1 mol % catalyst and 0.5 mol % base loading, respectively.
Kokoelmat
- Avoin saatavuus [31657]