Results 11 to 20 of about 214,928 (247)
Microheterogeneous Catalysis [PDF]
Molecules, 2010 The catalytic effect of micelles, polymers (such as DNA, polypeptides) and nanoparticles, saturable receptors (cyclodextrins and calixarenes) and more complex systems (mixing some of the above mentioned catalysts) have been reviewed. In these microheterogeneous systems the observed changes in the rate constants have been rationalized using the ...
Bernal Pérez, Eva +2 more
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Angewandte Chemie International Edition, 2014 AbstractNature’s enzymes are an ongoing source of inspiration for scientists. The complex processes behind their selectivity and efficiency is slowly being unraveled, and these findings have spawned many biomimetic catalysts. However, nearly all focus on the conversion of small molecular substrates.
van Dongen, S.F.H. +4 more
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Angewandte Chemie International Edition, 2019 AbstractHigh acidity and structural confinement are pivotal elements in asymmetric acid catalysis. The recently introduced imidodiphosphorimidate (IDPi) Brønsted acids have met with remarkable success in combining those features, acting as powerful Brønsted acid catalysts and “silylium” Lewis acid precatalysts in numerous thus far inaccessible ...
Lucas Schreyer +2 more
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Stereodivergent Catalysis [PDF]
Chemical Reviews, 2018 This review covers diastereo- and enantiodivergent catalyzed reactions in acyclic and cyclic systems using metal complexes or organocatalysts. Among them, nucleophilic addition to carbon-carbon and carbon-nitrogen double bonds, α-functionalization of carbonyl compounds, allylic substitutions, and ring opening of oxiranes and aziridines are considered ...
Irina P. Beletskaya +2 more
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Nature Reviews Chemistry, 2021 We describe as 'reversible' a bidirectional catalyst that allows a reaction to proceed at a significant rate in response to even a small departure from equilibrium, resulting in fast and energy-efficient chemical transformation. Examining the relation between reaction rate and thermodynamic driving force is the basis of electrochemical investigations ...
Vincent Fourmond +2 more
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JACS Au, 2023 Alongside enantioselective catalysis, synthetic chemists are often confronted by the challenge of achieving catalyst control over the relative configuration to stereodivergently access desired diastereomers. Typically, these approaches iteratively or simultaneously control multiple stereogenic units for which dual catalytic methods comprising ...
Moser, Daniel +2 more
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Materials for Renewable and Sustainable Energy, 2019 The influence of the surface modification of multi-walled carbon nanotubes (MWCNT) with nitrogen-containing compounds on the performance of 40 wt% Pt/MWCNT catalysts in the oxygen electroreduction reaction (ORR) was investigated using a rotating disk ...
E. N. Gribov +4 more
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Research, 2018 The assembly of superstructures from building blocks is of fundamental importance for engineering materials with distinct morphologies and properties, and deepening our understanding of self-assembly processes in nature.
Lei Xie +6 more
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Cooperative Photoredox and Asymmetric Catalysis
CHIMIA, 2016 Chemical processes combining visible-light-activated redox catalysis with asymmetric catalysis are reviewed, including enamine catalysis in the presence or absence of an additional photoredox sensitizer, phase transfer catalysis exploiting an in
Haohua Huo, Eric Meggersa
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Oxidation of propene from air by atmospheric plasma-catalytic hybrid system [PDF]
Journal of the Serbian Chemical Society, 2018 The pulsed dielectric barrier discharge (DBD) combined with the palladium supported on alumina beads, was investigated for propene (C3H6) removal from air. The effects of thermal-catalysis, plasma-catalysis (in-plasma catalysis and post-plasma catalysis),
Pham Thien Huu +2 more
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