Results 61 to 70 of about 5,282 (198)

Exploring Free Energy Profiles of Enantioselective Organocatalytic Aldol Reactions under Full Solvent Influence

open access: yesMolecules, 2020
We present a computational study on the enantioselectivity of organocatalytic proline-catalyzed aldol reactions between aldehydes in dimethylformamide (DMF). To explore the free energy surface of the reaction, we apply two-dimensional metadynamics on top
Moritz Weiß, Martin Brehm
doaj   +1 more source

Benzophenone Oxime Tosylate as the Photoacid Generator for the Friedel–Crafts Arylation of Aldehydes With Indoles

open access: yesChemistry – A European Journal, Volume 32, Issue 2, 9 January 2026.
Friedel–Crafts Arylation of Indoles: Use of an iminosulfonate derivative as the photoacid generator for the Friedel–Crafts arylation reaction between aldehydes and indoles under inert atmosphere. ABSTRACT Photochemistry enables transformations inaccessible through ground‐state pathways.
Michael Gkosios   +3 more
wiley   +1 more source

Catalytic Strategies for Amide-Based Michael Additions: Advances and Perspectives

open access: yesJournal of Chemistry
The Michael addition is a cornerstone transformation in organic synthesis, enabling efficient C–C and C–heteroatom bond formation. Traditionally, α,β-unsaturated carbonyl compounds such as enones and esters have dominated as Michael acceptors, whereas α ...
Muhammad Naufal   +5 more
doaj   +1 more source

Mechanical force-switchable aqueous organocatalysis

open access: yesCommunications Materials
Control over the catalytic activity of artificial catalytic systems in aqueous media is of high interest for biomimetic artificial catalysts. The activity of catalytic systems can be controlled via introducing stimuli-responsive feature in the structure ...
Nikita Das, Chandan Maity
doaj   +1 more source

Organocatalysis [PDF]

open access: yesAnnual Reports Section "B" (Organic Chemistry), 2011
Benjamin R. Buckley, Mohamed M. Farah
openaire   +2 more sources

Palladium and Organocatalysis: An Excellent Recipe for Asymmetric Synthesis

open access: yesMolecules, 2013
The dual activation of simple substrates by the combination of organocatalysis and palladium catalysis has been successfully applied in a variety of different asymmetric transformations.
Isidro M. Pastor   +3 more
doaj   +1 more source

Structure of Reactive Intermediates of Organocatalysis [PDF]

open access: bronze, 2009
Dieter Seebàch   +4 more
openalex   +1 more source

A quantitative approach to nucleophilic organocatalysis

open access: yesBeilstein Journal of Organic Chemistry, 2012
The key steps in most organocatalytic cyclizations are the reactions of electrophiles with nucleophiles. Their rates can be calculated by the linear free-energy relationship log k(20 °C) = sN(E + N), where electrophiles are characterized by one parameter
Herbert Mayr   +3 more
doaj   +1 more source

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