KoenigChemistry (@ChemistryKoenig)

We merged cobalt catalysis with the photochemistry of arylazo sulfones bearing dyedauxiliary groups for carbonylation processes @AdvSynthCatal
Congrats to @komaljaiswal_96 for this collaboration!
doi.org/10.1002/adsc.7…

advanced.onlinelibrary.wiley.com Visible‐Light Cobalt‐Catalyzed Synthesis of Aroyl Amides From Arylazo Sulfones Blue Light and Cobalt Catalysis for Synthesis! A versatile strategy that combines photoactive arylazo sulfones as substrates and Co2(CO)8 as a catalyst for the preparation of aromatic amides is...

KoenigChemistry @ChemistryKoenig Oct 13

Deprotonation and visible-light excitation generate a highly reducing excited state capable of activating strong C–Hal bonds. Congrats to Alex and @IndrajitGhosh85
Acridone Anion as a Highly Reducing Visible-Light Photocatalyst
doi.org/10.1039/D6CC05…

KoenigChemistry @ChemistryKoenig Oct 7

Our article "Green-light Cerium Photocatalysis enabled by Pyridine N-oxide Ligands" doi.org/10.1002/ejoc.2… has been highlighted in the "OrgHighlights" newsletter by Douglas Taber @EurJOC
organic-chemistry.org/Highlights/202…
Functional Group Protection: The Oger Synthesis of Ectocarpin A

chemistry-europe.onlinelibrary.wiley.com Green‐Light Cerium Photocatalysis Enabled by Pyridine N‐Oxide Ligands Pyridine N-oxides are found to be hydrogen-atom transfer ligands in cerium photocatalysis. Compared to previous described systems, the corresponding photoactive cerium(IV)-complex exhibits a distin...

KoenigChemistry @ChemistryKoenig Sep 29

Our recent work on the Aza-Büchner–Curtius–Schlotterbeck Reaction (ABCS) shows an interesting trend in reactivity. By employing electron poor aldimines instead of aldehydes, C–C insertion is now favored over the otherwise observed C–H insertion @angew_chem
doi.org/10.1002/anie.3…

onlinelibrary.wiley.com Aza‐Büchner–Curtius–Schlotterbeck Reaction Enables Selective Construction of Quaternary Carbon... We introduce the Aza-Büchner–Curtius–Schlotterbeck (ABCS) reaction: A mild, catalyst-free method for homologating aryl imines. Diverging from the traditional BCS mechanism, the diazo intermediate...

KoenigChemistry @ChemistryKoenig Sep 28

The counterion as a tunable component of the catalytic microenvironment influencing catalyst stability, substrate accessibility, and reaction kinetics!
@EurJOC
Congrats to Florence and @IndrajitGhosh85 doi.org/10.1002/ejoc.7…

chemistry-europe.onlinelibrary.wiley.com Counterion Effects in Decatungstate Photocatalysis Decatungstate photocatalysis is often discussed from an anion-centered perspective, treating the counterion as a passive charge-balancing species. This review highlights that counterion identity can...

KoenigChemistry

Latest posts 5