Results 141 to 150 of about 395,120 (176)
Asymmetric Supramolecular Organocatalysis: A Complementary Upgrade to Organocatalysis
European Journal of Organic Chemistry, 2017 The recent past has witnessed tremendous growth in the field of asymmetric synthesis through “asymmetric supramolecular organocatalysis (ASO)”. ASO emerges from many interactions between substrates and catalysts: namely substrate–catalyst, catalyst–catalyst and substrate–substrate interactions.
Dhevalapally B Ramachary +2 more
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Activation of Carboxylic Acids in Asymmetric Organocatalysis
Angewandte Chemie - International Edition, 2014 AbstractOrganocatalysis, catalysis using small organic molecules, has recently evolved into a general approach for asymmetric synthesis, complementing both metal catalysis and biocatalysis.1 Its success relies to a large extent upon the introduction of novel and generic activation modes.2 Remarkably though, while carboxylic acids have been used as ...
Markus Leutzsch, Benjamin List
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Asymmetric Organocatalysis in Deep Eutectic Solvents [PDF]
European Journal of Organic Chemistry, 2021 The recent advances in asymmetric organocatalysis using eutectic mixtures as a reaction medium are revised in this mini-review. In addition, the first enantioselective transformations using chiral eutectic solvents, which play the role of a green medium ...
Gabriela Guillena +2 more
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Catalyst design within asymmetric organocatalysis
Wiley Interdisciplinary Reviews: Computational Molecular Science, 2022 The field of organocatalysis, more specifically asymmetric organocatalysis, is continuously expanding having grown significantly over the recent years. However, despite this exponential expansion, the ability to determine with any degree of certainty the
Cristina Trujillo +2 more
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Green Asymmetric Organocatalysis
ChemSusChem, 2020AbstractAsymmetric organocatalysis is becoming one of the main tools for the synthesis of chiral compounds that are needed as medicines, crop protection agents, and other bioactive molecules. It can be effectively combined with various green chemistry methodologies.
Dominika Krištofiková +2 more
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Asymmetric Organocatalysis with Sulfones
Angewandte Chemie - International Edition, 2010AbstractAsymmetric organocatalysis has become a powerful tool for the synthesis of optically active compounds. Whereas early research mainly focused on combining simple reagents as a proof‐of‐concept for asymmetric organocatalysis, recent investigations are directed towards extending the concept to more target‐ and diversity‐oriented synthesis.
Marcio W Paixao +2 more
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Radicals in Asymmetric Organocatalysis
Angewandte Chemie International Edition, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Bertelsen, Søren +2 more
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Hydrazones as Singular Reagents in Asymmetric Organocatalysis [PDF]
Chemistry - A European Journal, 2016 AbstractThis Minireview summarizes strategies and developments regarding the use of hydrazones as reagents in asymmetric organocatalysis, their distinct roles in nucleophile–electrophile, cycloaddition, and cyclization reactions. The key structural elements governing the reactivity of these reagents in a preferred pathway will be discussed, as well as ...
David Monge Fernández +2 more
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INDIAN DRUGS, 2021
Dear Reader, Two basic reactions that were taught to us in the organic chemistry courses were the aldol condensation reaction and the Diels-Alder reaction. In aldol condensation, discovered by the French chemist Charles Wurtz in 1872, an enolate ion reacts with a carbonyl compound in the presence of an acid/ base catalyst to form a β-hydroxy aldehyde ...
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Dear Reader, Two basic reactions that were taught to us in the organic chemistry courses were the aldol condensation reaction and the Diels-Alder reaction. In aldol condensation, discovered by the French chemist Charles Wurtz in 1872, an enolate ion reacts with a carbonyl compound in the presence of an acid/ base catalyst to form a β-hydroxy aldehyde ...
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Asymmetric Organocatalysis Under Mechanochemical Conditions
The Chemical Record, 2023AbstractAsymmetric organocatalysis is a robust methodology providing access to numerous valuable compounds while having green chemistry principles in mind. The realization of organocatalytic transformation under solvent‐free mechanochemical conditions brings additional benefits in terms of yields, selectivities, and, last but not least overall improved
Viktória, Némethová +3 more
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