Results 21 to 30 of about 7,915 (201)

New Concepts for Organocatalysis

open access: yes, 2008
Organocatalysis, catalysis with low-molecular weight catalysts in which a metal is not part of the catalytic principle or the reaction substrate, can be as efficient and selective as metal- or biocatalysis. Important discoveries in this area include novel Lewis base-catalyzed enantioselective processes and, more recently, simple Brønsted acid ...
Pan, S., List, B.
openaire   +4 more sources

Asymmetric Supramolecular Organocatalysis: A Complementary Upgrade to Organocatalysis

open access: yesEuropean 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.
Kengadarane Anebouselvy   +2 more
openaire   +2 more sources

Organocatalysis [PDF]

open access: yesAnnual Reports Section "B" (Organic Chemistry), 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.
Benjamin R. Buckley, Stephen P. Neary
  +6 more sources

Non-asymmetric organocatalysis

open access: yesChemical Communications, 2012
Asymmetric 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
openaire   +4 more sources

Underexplored Catalysts as General Structures: Application of Machine Learning Techniques for Reaction-Specific Datasets. [PDF]

open access: yesAngew Chem Int Ed Engl
Bias‐aware machine learning identified an underexplored imidazolidinone catalyst with broad competitive performance in iminium‐based reactions. Experimental benchmarking shows how data‐driven prioritization can uncover overlooked catalyst scaffolds from sparse and historically biased literature data.
Li J   +4 more
europepmc   +3 more sources

Organocatalysts for enantioselective synthesis of fine chemicals: definitions, trends and developments

open access: yesScienceOpen Research, 2015
Organocatalysis, that is the use of small organic molecules to catalyse organic transformations, has been included among the most successful concepts in asymmetric catalysis and it has been used for the enantioselective construction of C-C, C-N, C-O, C-S,
Chiara Palumbo
doaj   +5 more sources

Recent Advances in the Enantioselective Radical Reactions

open access: yesMolecules, 2023
The review covers research published since 2017 and is focused on enantioselective synthesis using radical reactions. It describes recent approaches to the asymmetric synthesis of chiral molecules based on the application of the metal catalysis, dual ...
Tomasz Bauer   +2 more
doaj   +1 more source

Halogen-Bond-Based Organocatalysis Unveiled: Computational Design and Mechanistic Insights [PDF]

open access: yes, 2023
Halogen-bond-based organocatalysis is a promising alternative to the extensively explored halogen-bond-based catalysis. This paper presents a comprehensive theoreti- cal investigation of the structural and electronic properties of the σ-hole, as well as ...
Nika, Melnyk   +2 more
core   +1 more source

On Rational Design of Stereodivergent Organocatalysis Controlled by Selective Hydration [PDF]

open access: yes, 2023
Stereodivergent asymmetric synthesis via slightly tuning the catalytic conditions is very attractive for early-stage drug discovery, because it is a very time efficient and economical method for obtaining all potential biologically active diastereomers ...
Liuqun, Gu
core   +1 more source

Electroredox carbene organocatalysis with iodide as promoter

open access: yesNature Communications, 2022
Oxidative carbene organocatalysis has been developed as a versatile synthetic method, but has been paired with electroredox chemistry in only limited examples.
Peng Zhou   +3 more
doaj   +1 more source

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