Results 1 to 10 of about 48,033 (274)

On Novel Non-Organometallic Aryl Nucleophile in Palladium-Catalyzed Arylation

open access: yesChemistry Proceedings
Phenylazocarboxylate is described as a novel non-organometallic aryl nucleophile in palladium-catalyzed arylation.
Didier Villemin
exaly   +4 more sources

Computational Thermodynamic and Kinetic Analysis of Meisenheimer Intermediate Formation in Aromatic Nucleophilic Addition [PDF]

open access: yesMolecules
Meisenheimer intermediates provide entry points to nucleophilic aromatic substitution and dearomative functionalization, but productive substrate–nucleophile combinations remain difficult to identify beyond strongly activated aromatic systems.
Cheng Wang   +3 more
doaj   +2 more sources

Nucleophilic Isocyanation [PDF]

open access: yesACS Omega, 2020
Abstract Isonitriles are frequently employed as both substrates for organic transformations and ligands for organometallic chemistry. However, despite the wide application of the isonitriles, their synthesis generally depends on the traditional dehydration of N-formamide.
Taiga Yurino, Takeshi Ohkuma
openaire   +3 more sources

Systematic Exploration of Privileged Warheads for Covalent Kinase Drug Discovery

open access: yesPharmaceuticals, 2022
Kinase-targeted drug discovery for cancer therapy has advanced significantly in the last three decades. Currently, diverse kinase inhibitors or degraders have been reported, such as allosteric inhibitors, covalent inhibitors, macrocyclic inhibitors, and ...
Zheng Zhao, Philip E. Bourne
doaj   +1 more source

Direct Interaction between N-Acetylcysteine and Cytotoxic Electrophile—An Overlooked In Vitro Mechanism of Protection

open access: yesAntioxidants, 2022
In laboratory experiments, many electrophilic cytotoxic agents induce cell death accompanied by reactive oxygen species (ROS) production and/or by glutathione (GSH) depletion.
Petr Mlejnek
doaj   +1 more source

Analysis of the Gas Phase Acidity of Substituted Benzoic Acids Using Density Functional Concepts

open access: yesMolecules, 2020
A theoretical study of the effect of the substituent Z on the gas phase acidity of substituted benzoic acids ZC6H4COOH in terms of density functional theory descriptors (chemical potential, softness and Fukui function) is presented.
Jorge A. Amador-Balderas   +4 more
doaj   +1 more source

How the Nature of an Alpha-Nucleophile Determines a Brønsted Type-Plot and Its Reaction Pathways. An Experimental Study

open access: yesFrontiers in Chemistry, 2022
The reactions between 2-chloro-5-nitro pyrimidine with a serie of α-nucleophile derivatives were kinetically evaluated. The kinetic study was carried out in aqueous media and the data shown an unusual split on the Brønsted type-plot, opening a ...
Paola R. Campodónico   +2 more
doaj   +1 more source

Tuning the Nucleophilicity in Cyclopropenylidenes [PDF]

open access: yesChemistry – A European Journal, 2008
AbstractCyclopropenylidenes are Hückel aromatic π systems in which one of the ring atoms is a carbene center. Quantum chemical calculations at the density functional level of theory, supplemented by coupled‐cluster calculations, indicate that there is a sizeable energy separation between the lowest‐energy singlet and triplet states of these species ...
Schoeller, Wolfgang   +2 more
openaire   +3 more sources

Kinetics and Reaction Mechanism of Biothiols Involved in SNAr Reactions: An Experimental Study

open access: yesFrontiers in Chemistry, 2022
Few kinetic parameters, or reaction rates, are known up to date in detail about 1-chloro and 1-fluoro-2,4-dinitrobenzene (ClDNB and FDNB, respectively) with a series of biothiols in aqueous media. These biological nucleophiles with thiol groups have been
Paola R. Campodónico   +2 more
doaj   +1 more source

Protocol for synthesis of di- and tri-substituted s-triazine derivatives

open access: yesMethodsX, 2020
The present protocol describes the synthesis of di and tri-substituted s-triazine derivatives • s-Triazine undergoes sequential nucleophilic substitution reaction but order of nucleophile is very crucial.
Ayman El-Faham   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy