Results 11 to 20 of about 487,283 (249)
Nanoparticles for Catalysis [PDF]
Nanomaterials, 2016 Nanoscience emerged in the last decades of the 20th century with the general aim to determine those properties that appear when small particles of nanometric dimensions are prepared and stabilized.[...]
Hermenegildo García +2 more
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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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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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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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RNA catalysis—is that it? [PDF]
RNA, 2015 Article and publication date are at http://www.rnajournal.org/cgi/doi/10.1261/rna.049874.115. Freely available online through the RNA Open Access option.
Wilson, Timothy J., Lilley, David M. J.
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Metallaphotoredox: The Merger of Photoredox and Transition Metal Catalysis.
Chemical Reviews, 2021 The merger of photoredox catalysis with transition metal catalysis, termed metallaphotoredox catalysis, has become a mainstay in synthetic methodology over the past decade.
Amy Y Chan +16 more
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High-entropy materials for catalysis: A new frontier
Science Advances, 2021 High-entropy materials with compositional and structural complexities introduce a transformative opportunity for catalysis. Entropy plays a pivotal role in catalysis, and extensive research efforts have been directed to understanding the enthalpy-entropy
Yifan Sun, S. Dai
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Enantioconvergent catalysis [PDF]
Beilstein Journal of Organic Chemistry, 2016 An enantioconvergent catalytic process has the potential to convert a racemic starting material to a single highly enantioenriched product with a maximum yield of 100%. Three mechanistically distinct approaches to effecting enantioconvergent catalysis are identified, and recent examples of each are highlighted.
Mohr, Justin T. +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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