Today we celebrate our female scientists with the United Nation’s International Day of Women and Girls in Science 😀
Thanks to our leaders Kathrin and Annette as well as our Postdoc Ljiljana for their present and future contributions to CO2 chemistry!
New Research Article: Rh‐catalyzed hydrocarboxylation
Congratulations to Ljiljana Pavlovic, Martin Pettersen, Ashot Gevorgyan, Janakiram Vaitla, Annette Bayer and Kathrin H. Hopmann on their recently accepted article in European Journal of Organic Chemistry!
The work investigates the factors controlling the enantioselectivity of the asymmetric Rh‐catalyzed hydrocarboxylation of α,β‐unsaturated carbonyl compounds with computational and experimental methods.
Congratulations to Dr. Ismael !
Aya Ismael from the CHOCO research group at UiT defended her doctoral thesis titled “Method development towards synthesis of carbapenemase inhibitors” on the 26th of September 2020.
- Professor Nina Kann, Chalmers Tekniska Högskola, Sweden (first opponent)
- Professor Bård Helge Hoff, Department of Chemistry, NTNU (second opponent)
- Dr. Vijayaragavan Elumalai, Department of Chemistry, UiT (internal member and leader of the commitee)
Professor Nina Kann participated remotely to the event, and Dr. Yvonne Piotrowski, Department of Chemistry, UiT, acted as reserve member in case she lost her connection.
The trial lecture and public defence were both live-streamed via Mediasite, and the recording was publicly available for one week.
You can read Aya’s thesis here.
Ni-catalyzed carboxylation reactions
Congratulations to CHOCO members Marc F. Obst and Kathrin H. Hopmann on their recently published article!
Although the catalytic carboxylation of unactivated alkyl electrophiles has reached remarkable levels of sophistica-tion, the intermediacy of (phenanthroline)Ni(I)-alkyl species – complexes proposed in numerous Ni-catalyzed reductive cross-coupling reactions – has been subject to speculation. Herein, we report the synthesis of such elusive (phenanthro-line)Ni(I) species and their reactivity with CO2, allowing us to address a long-standing question related to metal-catalyzed carboxylation reactions.
For more articles by the CHOCO group, visit our Publications page.
This issue of Organometallics is on CO2 conversion!
The latest issue of the journal Organometallics, published just yesterday, is a special issue on CO2 conversion, with our own Assoc. Prof. Kathrin H. Hopmann as editor. Be sure to read the editorial she has written with Prof. N. Iwasawa from the Tokyo Institute of Technology and Prof. N. Hazari from Yale University !
She also designed the cover in collaboration with Dr. J. Darmon from Princeton University.
The article from Marc Obst, Ashot Gevorgyan, Annette Bayer, and Kathrin Hopmann on Copper-Catalyzed Carboxylations is also included in this issue. Congratulations!
We are staying home but still going strong 🙂
The CHOCO group meetings have started again last week, and this morning we add 13 people on Zoom witnessing Ljiljana’s presentation.
New Article Published by the CHOCO Group!
Our manuscript on the formal C-H carboxylation of unactivated arene was accepted in Chemistry A European Journal!
Open position at UiB
A one year researcher position in electrocatalytic CO2 reduction is now opening at the University of Bergen (Norway). The position is part of the NordCO2 consortium that CHOCO is leading. You can apply here until the 29th of January.
New Article on Copper-catalyzed carboxylation
Congratulations to Marc Obst, Ashot Gevorgyan, Annette Bayer, and Kathrin Hopmann on their recently published article!
The copper-NHC-catalyzed carboxylation of organoboranes with CO2 was investigated using computational and experimental methods. The DFT and DLPNO-CCSD(T) results indicate that nonbenzylic substrates are converted via an inner-sphere carboxylation of an organocopper intermediate, whereas benzylic substrates may simultaneously proceed along both inner- and outer-sphere CO2 insertion pathways. Interestingly, the computations predict that two conceptually different carboxylation mechanisms are possible for benzylic organoboranes, one being copper-catalyzed and one being mediated by the reaction additive CsF. Our experimental evaluation of the computed reactions confirms that carboxylation of nonbenzylic substrates requires copper catalysis, whereas benzylic substrates can be carboxylated with and without copper.
For more articles by the CHOCO group, visit our Publications page!