Catalytic Enantioselective Hydrogen Atom Abstraction Enables the Asymmetric Oxidation of Meso Diols. [PDF]
J Am Chem SocDesymmetrization of meso diols is an important strategy for the synthesis of chiral oxygen-containing building blocks. Oxidative desymmetrization is an important subclass, but existing methods are often constrained by the need for activated alcohol ...
Lam NYS +3 more
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Beyond the classical thermodynamic contributions to hydrogen atom abstraction reactivity. [PDF]
Proc Natl Acad Sci U S A, 2018 Significance Hydrogen atom abstraction reactivity is a key property of many important biological and synthetic compounds that depends on their proton-coupled reduction potentials.
Bím D +3 more
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Chemical Kinetics of Hydrogen Atom Abstraction from Propargyl Sites by Hydrogen and Hydroxy Radicals. [PDF]
Int J Mol Sci, 2019 Hydrogen atom abstraction from propargyl C-H sites of alkynes plays a critical role in determining the reactivity of alkyne molecules and understanding the formation of soot precursors.
Wang QD, Sun Y, Sun MM, Liang JH.
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A Nonheme Thiolate-Ligated Cobalt Superoxo Complex: Synthesis and Spectroscopic Characterization, Computational Studies, and Hydrogen Atom Abstraction Reactivity. [PDF]
J Am Chem Soc, 2019 The synthesis and characterization of a Co(II) dithiolato complex Co(Me3TACN)(S2SiMe2) (1) are reported. Reaction of 1 with O2 generates a rare thiolate-ligated cobalt-superoxo species Co(O2)(Me3TACN)(S2SiMe2) (2) that was characterized spectroscopically
Gordon JB +5 more
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Catalytic Ammonia Oxidation to Dinitrogen by Hydrogen Atom Abstraction
Angewandte Chemie International Edition, 2019 AbstractCatalysts for the oxidation of NH3 are critical for the utilization of NH3 as a large‐scale energy carrier. Molecular catalysts capable of oxidizing NH3 to N2 are rare. This report describes the use of [Cp*Ru(PtBu2NPh2)(15NH3)][BArF4], (PtBu2NPh2=1,5‐di(phenylaza)‐3,7‐di(tert‐butylphospha)cyclooctane; ArF=3,5‐(CF3)2C6H3), to catalytically ...
Papri Bhattacharya +5 more
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Hydrogen atom abstraction by a high spin [FeIII=S] complex. [PDF]
Chem, 2023 Iron sulfur clusters are critical to a plethora of biological processes; however, little is known about the elementary unit of these clusters, namely the [Fe=S]n+ fragment. Here, we report the synthesis and characterization of a terminal iron sulfido complex.
Valdez-Moreira JA +6 more
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Hydrogen atom abstraction from hydrocarbons by a copper(III)-hydroxide complex. [PDF]
J Am Chem Soc, 2015 With the aim of understanding the basis for the high rate of hydrogen atom abstraction (HAT) from dihydroanthracene (DHA) by the complex LCuOH (1; L = N,N′-bis(2,6-diisopropylphenyl)-2,6-pyridinedicarboxamide), the bond dissociation enthalpy of the ...
Dhar D, Tolman WB.
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Generation of Diazomethyl Radicals by Hydrogen Atom Abstraction and Their Cycloaddition with Alkenes
Angewandte Chemie International Edition, 2021 AbstractA general catalytic methodology for the synthesis of pyrazolines from α‐diazo compounds and conjugated alkenes is reported. The direct hydrogen atom transfer (HAT) process of α‐diazo compounds promoted by the tert‐butylperoxy radical generates electrophilic diazomethyl radicals, thereby reversing the reactivity of the carbon atom attached with ...
Yong‐Liang Su +3 more
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Kinetics of hydrogen atom abstraction from substrate by an active site thiyl radical in ribonucleotide reductase. [PDF]
J Am Chem Soc, 2014 Ribonucleotide reductases (RNRs) catalyze the conversion of nucleotides to deoxynucleotides in all organisms. Active E. coli class Ia RNR is an α2β2 complex that undergoes reversible, long-range proton-coupled electron transfer (PCET) over a pathway of ...
Olshansky L +4 more
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Selective Hydrogen Atom Abstraction by Hydrogen Atoms in Photolysis and Radiolysis of Alkane Mixtures at 77 K [PDF]
Bulletin of the Chemical Society of Japan, 1976 Abstract A selective hydrogen atom abstraction reaction by H atoms, which are produced at 77K by radiolysis of alkane or photolysis of hydrogen halides, has been found in isobutane, 2,2,3,3-tetramethylbutane (TMB), and cyclopropane matrices as well as in the neopentane matrix. The selective hydrogen atom abstraction reaction is caused by
Tetsuo Miyazaki +3 more
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