M. Sc. Justus Diekamp
Focus of work
- Late stage ligand modifications
- Biphasic homogenous catalysis
- Click chemistry
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Curriculum Vitae
Justus Diekamp studied Chemistry at the University of Rostock and finished his bachelor thesis on the ruthenium catalyzed reduction of α,β-unsaturated esters in the group of Prof. de Vries and Dr. Hinze at the Leibniz Institute for Catalysis (LIKAT). He continued with the consecutive master in Rostock while focusing on homogenous catalysis. In 2021, he completed his master thesis on the topic of “Cheap Nickel and Chromium NNS complexes for Oligomerization and Polymerization of Ethylene” under supervision of Prof. de Vries and Dr. Tin at the LIKAT. During his studies, he received the scholarship of the Konrad Adenauer Foundation.
Since April 2021, he has worked as a research associate at the Laboratory of Industrial Chemistry with Prof. Vogt and Dr. Seidensticker.
Research Topic
A main issue for the industrial application of homogenous catalysts is the much more difficult recycling of the catalyst compared to heterogeneous systems. The most promising and already industrially applied approach is the modification of the catalyst solubility to retain the catalyst in one of two liquid phases.
The most desirable way of introducing these catalyst modifications is on the synthesis’ late stage level as it allows the use of existing ligand syntheses and commercially available ligands. Due to the reactivity of heteroatoms in ligands, the late stage modifications call for selective reactions and/or protection strategies for the endangered functional groups.
The focus of research lies on the late-stage introduction of polar groups into existing catalyst systems to allow reactions in environmentally benign solvents such as ethanol and water and the retention of the catalyst in an aqueous phase. These polar environments are also a perfect fit for polar H2-surrogates (isopropanol, formic acid, etc.).
Publications
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Diekamp, J., Schmidt, A., Holstein, J. J., Strohmann, C., Seidensticker, T., (2024) "Synthesis and catalytic testing of the first hydrophilic derivative of Shvo’s catalyst", Chem. Comm., DOI: 10.1039/D4CC04390A
- Wegener, H.W., Diekamp, J., Seidensticker, T., (2024) "A Perspective on Aldoximes as Platform Chemicals: Rethinking C-N Bond Formation" Chem. Eur. J., e202401206, DOI: 10.1002/cctc.202401206.
- Diekamp, J., Seidensticker, T., (2023) "Synthesis Strategies towards Tagged Homogeneous Catalysts To Improve Their Separation", Angew. Chem. Int. Ed. 2023, e202304223, DOI: 10.1002/anie.202304223
Talks:
- June 2024, Weimar, 57. Jahrestreffen Deutscher Katalytiker, Poster Pitch: „Introducing SulfoShvo: Synthesis and catalytic testing of the first sulfonated derivative of Shvo’s catalyst ”
Posters:
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June 2024, Weimar, 57. Jahrestreffen Deutscher Katalytiker, „Introducing SulfoShvo: Synthesis and catalytic testing of the first sulfonated derivative of Shvo’s catalyst ” (Poster Price)