A5046322950- Nanomaterials for catalytic reactions
- Asymmetric Hydrogenation and Catalysis
- Catalysis for Biomass Conversion
- Carbon dioxide utilization in catalysis
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Ammonia Synthesis and Nitrogen Reduction
- Catalysis and Hydrodesulfurization Studies
- Crystallography and molecular interactions
- Chemical Synthesis and Analysis
- Oxidative Organic Chemistry Reactions
- Innovative Microfluidic and Catalytic Techniques Innovation
- Chemical Synthesis and Reactions
- Natural Language Processing Techniques
- Catalytic Processes in Materials Science
Leibniz Institute for Catalysis
2019-2023
Abstract The hydrogenation of nitriles to amines represents an important and frequently used industrial process due the broad applicability resulting products in chemistry life sciences. Despite existing portfolio catalysts reported for nitriles, development iron-based heterogeneous this is still a challenge. Here, we show that impregnation pyrolysis iron(II) acetate on commercial silica produces reusable Fe/Fe–O@SiO 2 catalyst with well-defined structure comprising fayalite phase at Si–Fe...
Efficient and general methods for the synthesis of amines remain in high demand chemical industry. Among many known processes, catalytic hydrogenation is a cost-effective industrially proven reaction currently used to produce wide array such compounds. We report homogeneous nickel catalyst hydrogenative cross coupling range aromatic, heteroaromatic, aliphatic nitriles with primary secondary or ammonia. This protocol showcased by straightforward highly selective >230 functionalized...
Abstract Herein, we report the synthesis of specific silica‐supported Co/Co 3 O 4 core–shell based nanoparticles prepared by template cobalt‐pyromellitic acid on silica and subsequent pyrolysis. The optimal catalyst material allows for general selective hydrogenation pyridines, quinolines, other heteroarenes including acridine, phenanthroline, naphthyridine, quinoxaline, imidazo[1,2‐a]pyridine, indole under comparably mild reaction conditions. In addition, recycling these Co their ability...
In this review the concept of bridging homogeneous and heterogeneous catalysis aspects for preparation nanoparticle-, single atom- supported metal complex-based catalysts their applications in organic transformations is discussed.
Abstract The development of earth abundant 3d metal-based catalysts continues to be an important goal chemical research. In particular, the design base metal complexes for reductive amination produce primary amines remains as challenging. Here, we report combination cobalt and linear-triphos (bis(2-diphenylphosphinoethyl)phenylphosphine) molecularly-defined non-noble catalyst synthesis linear branched benzylic, heterocyclic aliphatic from carbonyl compounds, gaseous ammonia hydrogen in good...
We report the synthesis of <italic>in situ</italic> generated cobalt nanoparticles from molecularly defined complexes as efficient and selective catalysts for reductive amination reactions.
The selective hydrogenation of benzofurans in the presence a heterogeneous non-noble metal catalyst is reported. developed optimal catalytic material consists cobalt-cobalt oxide core-shell nanoparticles supported on silica, which has been prepared by immobilization and pyrolysis cobalt-DABCO-citric acid complex silica under argon at 800 °C. This novel allows for simple functionalized to 2,3-dihydrobenzofurans as well related heterocycles. versatility reported protocol showcased reduction...
A Ni-triphos based homogeneous catalyst enabled the synthesis of all kinds primary amines by reductive amination carbonyl compounds with ammonia and hydrogenation nitroarenes.
Silica supported ultrasmall Ni-nanoparticles allow for general and selective hydrogenation of all kinds nitriles to primary amines under mild conditions. By calcination a template material generated from Ni(ii)nitrate colloidal silica air subsequent reduction in the presence molecular hydrogen optimal catalyst is prepared. The prepared nanoparticles are stable, can be conveniently used easily recycled. applicability shown by >110 diverse aliphatic aromatic including functionalized...
Abstract Efficient and selective conversion of renewable feedstocks to essential chemicals fuels applying green sustainable catalytic processes is central importance attracts scientific interest. Among different biomass‐based feedstocks, 5‐hydroxymethylfurfural (HMF) represents valuable platform compound widely used for the synthesis chemicals, fuels, polymers. Here we report cobalt nanoparticles catalyzed reductive amination, hydrogenation hydrodeoxygenation HMF produce furan based primary,...
Abstract Herein, we report the synthesis of specific silica‐supported Co/Co 3 O 4 core–shell based nanoparticles prepared by template cobalt‐pyromellitic acid on silica and subsequent pyrolysis. The optimal catalyst material allows for general selective hydrogenation pyridines, quinolines, other heteroarenes including acridine, phenanthroline, naphthyridine, quinoxaline, imidazo[1,2‐a]pyridine, indole under comparably mild reaction conditions. In addition, recycling these Co their ability...
Abstract The selective hydrogenation of benzofurans in the presence a heterogeneous non‐noble metal catalyst is reported. developed optimal catalytic material consists cobalt‐cobalt oxide core–shell nanoparticles supported on silica, which has been prepared by immobilization and pyrolysis cobalt‐DABCO‐citric acid complex silica under argon at 800 °C. This novel allows for simple functionalized to 2,3‐dihydrobenzofurans as well related heterocycles. versatility reported protocol showcased...