Proton Transfer and SN 2 Reactions as Steps of Fast Selenol and Thiol Oxidation in Proteins: A Model Molecular Study Based on GPx.
Sign Up to like & getrecommendations! Published in 2020 at "ChemPlusChem"
DOI: 10.1002/cplu.202000660
Abstract: The so-called peroxidatic cysteines and selenocysteines in proteins reduce hydroperoxides through a dual attack to the peroxide bond in a two-step mechanism. First, a proton dislocation from the thiol/selenol to a close residue of the… read more here.
Keywords: reactions steps; steps fast; study; proton ... See more keywords
Kinetic modeling of electron transfer reactions in photosystem I complexes of various structures with substituted quinone acceptors
Sign Up to like & getrecommendations! Published in 2017 at "Photosynthesis Research"
DOI: 10.1007/s11120-017-0366-y
Abstract: The reduction kinetics of the photo-oxidized primary electron donor P700 in photosystem I (PS I) complexes from cyanobacteria Synechocystis sp. PCC 6803 were analyzed within the kinetic model, which considers electron transfer (ET) reactions between… read more here.
Keywords: electron transfer; site; photosystem complexes; transfer reactions ... See more keywords
Production cross sections for exotic nuclei with multinucleon transfer reactions
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DOI: 10.1007/s11467-018-0843-6
Abstract: The main progresses in the multinucleon transfer reactions at energies close to the Coulomb barrier are reviewed. After a short presentation of the experimental progress and theoretical progress, the predicted production cross sections for unknown… read more here.
Keywords: multinucleon transfer; transfer reactions; cross sections; production cross ... See more keywords
Iron-catalyzed chemoselective hydride transfer reactions
Sign Up to like & getrecommendations! Published in 2021 at "Tetrahedron"
DOI: 10.1016/j.tet.2021.132187
Abstract: ABSTRACT A Diaminocyclopentadienone iron tricarbonyl complex has been applied in chemoselective hydrogen transfer reductions. This bifunctional iron complex demonstrated a broad applicability in mild conditions in various reactions, such as reduction of aldehydes over ketones,… read more here.
Keywords: iron catalyzed; catalyzed chemoselective; chemoselective hydride; hydride transfer ... See more keywords
Recent topics in enantioselective acyl transfer reactions with dialkylaminopyridine-based nucleophilic catalysts
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.03.016
Abstract: Abstract This digest focuses on recent topics in intra- and intermolecular enantioselective acyl transfer reactions with dialkylaminopyridine-based catalysts over the past decade (2007–2017). The structures of the catalysts are divided into four categories according to… read more here.
Keywords: acyl transfer; transfer reactions; recent topics; enantioselective acyl ... See more keywords
A Kinetic Study of the Electron-Transfer Reactions of Nickel(III,II) Tripeptide Complexes with Cyano Complexes of Molybdenum, Tungsten, and Iron.
Sign Up to like & getrecommendations! Published in 2020 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.0c01582
Abstract: Experimentally measured rate constants, k12obsd, for the reductions of [Ni(III)tripeptides(H2O)2] with Fe(CN)64-, Mo(CN)84-, and W(CN)84- are 102 to 105 times faster than the calculated rate constants with the Marcus theory for outer-sphere electron-transfer processes, k12calc,… read more here.
Keywords: electron transfer; tripeptide; rate; transfer ... See more keywords
Efficient and Adaptive Methods for Computing Accurate Potential Surfaces for Quantum Nuclear Effects: Applications to Hydrogen-Transfer Reactions.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.7b00927
Abstract: We present two sampling measures to gauge critical regions of potential energy surfaces. These sampling measures employ (a) the instantaneous quantum wavepacket density, an approximation to the (b) potential surface, its (c) gradients, and (d)… read more here.
Keywords: transfer reactions; hydrogen transfer; potential surfaces; quantum nuclear ... See more keywords
Enabling Cyclopropanation Reactions of Imidazole Heterocycles via Chemoselective Photochemical Carbene Transfer Reactions of NHC-Boranes.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c00609
Abstract: Herein we report a site-selective cyclopropanation of N-heterocyclic carbene (NHC)-borane complexes via photochemical carbene transfer reactions. By subtle changes to the reaction conditions, this approach can be further extended toward the difunctionalization of NHC-boranes via… read more here.
Keywords: carbene transfer; transfer reactions; photochemical carbene; cyclopropanation ... See more keywords
Cavity-Modulated Proton Transfer Reactions.
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DOI: 10.1021/jacs.1c13201
Abstract: Proton transfer is ubiquitous in many fundamental chemical and biological processes, and the ability to modulate and control the proton transfer rate would have a major impact on numerous quantum technological advances. One possibility to… read more here.
Keywords: transfer reactions; electrodynamics; proton transfer; proton ... See more keywords
Catalytic Reductive Vinylidene Transfer Reactions.
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DOI: 10.1021/jacs.7b05901
Abstract: Methylenecyclopropanes are important synthetic intermediates that possess strain energies exceeding those of saturated cyclopropanes by >10 kcal/mol. This report describes a catalytic reductive methylenecyclopropanation reaction of simple olefins, utilizing 1,1-dichloroalkenes as vinylidene precursors. The reaction… read more here.
Keywords: vinylidene transfer; reductive vinylidene; catalytic reductive; transfer reactions ... See more keywords
Synthesis of supramolecular gels based on electron-transfer reactions between clay nanotubes and styrene.
Sign Up to like & getrecommendations! Published in 2019 at "Chemical communications"
DOI: 10.1039/c9cc04102h
Abstract: A novel supramolecular gel is synthesized using styrene and halloysite nanotubes under ultrasound treatment, in which the nanotubes act as gelators for the styrene gel. The formation of the gel arises from electron-transfer reactions between… read more here.
Keywords: based electron; gels based; transfer reactions; supramolecular gels ... See more keywords