Steric Modulation of CAACs Controls Orientation and Ethenolysis Performance

Katrina H Jensen; Brian W Michel

doi:10.1016/j.checat.2023.100764

Steric Modulation of CAACs Controls Orientation and Ethenolysis Performance

Chem Catal. 2023 Sep 21;3(9):100764. doi: 10.1016/j.checat.2023.100764.

Authors

Katrina H Jensen¹, Brian W Michel²

Affiliations

¹ Department of Chemistry, Black Hills State University, Spearfish, SD, 57799, United States.
² Department of Chemistry and Biochemistry, University of Denver, Denver, CO, 80210, United States.

PMID: 38434759
PMCID: PMC10906913 (available on 2024-09-21)
DOI: 10.1016/j.checat.2023.100764

Abstract

In this issue of Chem Catalysis, Sytniczuk, Kajetanowicz, and Grela report sterically tuned Cyclic(Alkyl)(Amino)Carbene (CAAC) ligands to protect the requisite Ru-methylidene ([Ru]=CH₂) intermediate present during ethenolysis of renewable fatty acid methyl esters (FAME). Surprising structural characteristics of the Ru-CAAC complexes resulted in TON up to 740,000 and sub-ppm catalyst loadings.

Grants and funding

R35 GM150937/GM/NIGMS NIH HHS/United States