Results 151 to 160 of about 2,455 (178)
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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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Non-asymmetric organocatalysis
Chemical Communications, 2012Asymmetric organocatalysis is now an established methodology for the preparation of chiral compounds. However, these are not the only valuable molecules which can be conveniently obtained. Organocatalytic reactions affording achiral compounds are gaining momentum, opening unexplored pathways in the synthesis of densely functionalized aromatic moieties,
RENZI, POLYSSENA, BELLA, Marco
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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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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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Low-loading asymmetric organocatalysis
Chem. Soc. Rev., 2012Asymmetric organocatalysis is now recognized as the third pillar of asymmetric synthesis. Recent years have witnessed increasing interest towards the use of highly active and stereoselective organocatalysts. This critical review documents the advances in the development of chiral organocatalysts which are systematically used in ≤3 mol% loading in all ...
GIACALONE, Francesco +3 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.
Nielsen, Martin +4 more
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Nucleophilic Carbenes in Asymmetric Organocatalysis
Accounts of Chemical Research, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Dieter, Enders, Tim, Balensiefer
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Asymmetric Organocatalysis: From Infancy to Adolescence
Angewandte Chemie International Edition, 2008AbstractAfter an initial period of validating asymmetric organocatalysis by using a wide range of important model reactions that constitute the essential tools of organic synthesis, the time has now been reached when organocatalysis can be used to address specific issues and solve pending problems of stereochemical relevance.
DONDONI, Alessandro, MASSI, Alessandro
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Asymmetric Supramolecular Organocatalysis: A Complementary Upgrade to Organocatalysis
European Journal of Organic Chemistry, 2017The 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.
Kengadarane Anebouselvy +2 more
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Switchable divergent asymmetric synthesis via organocatalysis
Chemical Society Reviews, 2017A variety of chiral organocatalysts, in addition to synergistic metal-based activation, were discussed in diverse switchable stereoselective reactions.
Gu Zhan, Wei Du, Ying-Chun Chen
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