Recent advances in organocatalytic atroposelective reactions. [PDF]
Beilstein J Org ChemAxial chirality is present in a variety of naturally occurring compounds, and is becoming increasingly relevant also in medicine. Many axially chiral compounds are important as catalysts in asymmetric catalysis or have chiroptical properties. This review
Szabados H, Šebesta R.
europepmc +2 more sources
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
doaj +1 more source
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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Theoretical Perspectives in Organocatalysis
Chemistry – A European Journal, 2022 AbstractIt is clear that the field of organocatalysis is continuously expanding during the last decades. With increasing computational capacity and new techniques, computational methods have provided a more economic approach to explore different chemical systems.
Nika Melnyk +3 more
openaire +2 more sources
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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Organocatalysis in aqueous media [PDF]
Nature Reviews Chemistry, 2019 Even though enzymes are the cornerstones of living systems, it has so far proven difficult to deploy artificial catalysts in a biological setting. Organocatalysts are arguably well-suited artificial catalysts for this purpose because, compared with enzymes and inorganic catalysts, they are simpler, often less toxic and widely accessible.
Michelle P. van der Helm +2 more
openaire +4 more sources
Organocatalytic synthesis of axially chiral atropisomers [PDF]
, 2017 This review summarises the recent progress made in the organocatalytic synthesis of atropisomeric compounds. Methodologies based on dynamic kinetic resolution and direct access to BINOL-like biaryls are described.
Renzi, P.
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Synthesis and use of a stable aminal derived from TsDPEN in asymmetric organocatalysis [PDF]
, 2010 A stable aminal formed stereoselectively from (R,R)-N-tosyl-1,2-diphenyl-1,2-ethylenediamine (TsDPEN) is capable of asymmetric organocatalysis of Diels-Alder and alpha-amination reactions of ...
Clarkson, Guy J. +3 more
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Desymmetrization of N-Cbz glutarimides through N-heterocyclic carbene organocatalysis
Nature Communications, 2022 Desymmetrization of achiral building blocks is one of the most efficient ways to access enantiopure compounds of synthetic relevance. Here, the authors desymmetrize glutarimides with alcohols via an imide C–N bond cleavage under NHC organocatalysis.
Zhouli Hu +12 more
doaj +1 more source
Experimental and Theoretical Evidence for Nitrogen-Fluorine Halogen Bonding in Silver-Initiated Radical Fluorinations [PDF]
, 2019 We report experimental and computational evidence for nitrogen–fluorine halogen bonding in Ag(I)-initiated radical C–H fluorinations. Simple pyridines form [N–F–N]+ halogen bonds with Selectfluor to facilitate single-electron reduction by catalytic Ag ...
Baker, Sarah I +4 more
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