Results 21 to 30 of about 16,879 (311)
Molecules, 2023 Through the lens of organocatalysis and phase transfer catalysis, we will examine the key components to calculate or predict catalysis-performance metrics, such as turnover frequency and measurement of stereoselectivity, via computational chemistry.
Choon Wee Kee
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Proceedings of the National Academy of Sciences, 2010 The use of small-molecule organic catalysts in organic synthesis has flourished over the past decade. Examples of defining concepts and cutting-edge results are provided in the papers in this Special Feature.
Eric N. Jacobsen, David W. C. MacMillan
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Annual Reports Section "B" (Organic Chemistry), 2011 Reactions carried out with substoichiometric quantities of organic molecules as catalysts have received much attention over the past decade. This review highlights progress in 2010 towards highly enantioselective organocatalytic systems and the natural product/biologically active compounds that can be prepared using these types of processes.
Benjamin R. Buckley, Mohamed M. Farah
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Whole Cells as Biocatalysts in Organic Transformations
Molecules, 2018 Currently, the power and usefulness of biocatalysis in organic synthesis is undeniable, mainly due to the very high enantiomeric excess reached using enzymes, in an attempt to emulate natural processes.
Fabián Garzón-Posse +3 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.
N. Rao
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Direct Transamidation Reactions: Mechanism and Recent Advances
Molecules, 2018 Amides are undeniably some of the most important compounds in Nature and the chemical industry, being present in biomolecules, materials, pharmaceuticals and many other substances.
Paola Acosta-Guzmán +2 more
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N‐heterocyclic carbene catalyzed photoenolization/Diels–Alder reaction of acid fluorides [PDF]
, 2019 The combination of light activation and N‐heterocyclic carbene (NHC) organocatalysis has enabled the use of acid fluorides as substrates in a UVA‐light‐mediated photochemical transformation previously observed only with aromatic aldehydes and ketones ...
Agrawal, Arush +6 more
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POM@MOF hybrids : synthesis and applications [PDF]
, 2020 The hybrid materials that are created by supporting or incorporating polyoxometalates (POMs) into/onto metal–organic frameworks (MOFs) have a unique set of properties.
Abednatanzi, Sara +4 more
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Kinetics and mechanism of organocatalytic aza-Michael additions: direct observation of enamine intermediates. [PDF]
, 2012 The imidazoles 1a–g add to the CC-double bond of the iminium ion 2 with rate constants as predicted by the equation log k = sN(N + E). Unfavourable proton shifts from the imidazolium unit to the enamine fragment in the adduct 3 account for the failure of
Ahrendt +33 more
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Asymmetric organocatalysis of the addition of acetone to 2-nitrostyrene using N-diphenylphosphinyl-1,2-diphenylethane-1,2-diamine (PODPEN) [PDF]
, 2010 The highly enantioselective addition of acetone to 2-nitrostyrene, using N–diphenylphosphinyl-trans-1,2-diphenylethane-1,2-diamine (PODPEN) as catalyst, is ...
A. Simon Partridge +53 more
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