Results 11 to 20 of about 188,936 (339)

Hydrogen Atom Abstraction and Reduction Study of 21-Thiaporphyrin and 21,23-Dithiaporphyrin. [PDF]

open access: goldMolecules
The metal-free porphyrins protonation has gained interest over five decades because its structure modification and hardly monoacid intermediate isolation.
Ren XR   +6 more
europepmc   +5 more sources

Tunnelling dominates the reactions of hydrogen atoms with unsaturated alcohols and aldehydes in the dense medium [PDF]

open access: yes, 2018
Hydrogen addition and abstraction reactions play an important role as surface reactions in the buildup of complex organic molecules in the dense interstellar medium. Addition reactions allow unsaturated bonds to be fully hydrogenated, while abstraction reactions recreate radicals that may undergo radical-radical recombination reactions.
Kästner, J.   +3 more
arxiv   +3 more sources

Mechanistic insights into the oxidation of substituted phenols via hydrogen atom abstraction by a cupric-superoxo complex. [PDF]

open access: bronzeJ Am Chem Soc, 2014
Lee JY   +9 more
europepmc   +2 more sources

KINETICS OF THE ABSTRACTION OF HYDROGEN ATOMS FROM HYDROGEN SULFIDE BY TRIFLUOROMETHYL RADICALS [PDF]

open access: bronzeCanadian Journal of Chemistry, 1966
Trifluoromethyl radicals generated from the photolysis of hexafluoroacetone abstract hydrogen atoms from hydrogen sulphide.[Formula: see text]The rate constant of this reaction measured by comparing the rate with that for the recombination of trifluoromethyl radicals (k = 2.3 × 1013 cc mole−1 s−1) is given by,[Formula: see text]
Neville L. Arthur, T. N. Bell
openalex   +3 more sources

A comparison of hydrogen abstraction reaction between allyl-type monomers with thioxanthone-based photoinitiators without amine synergists

open access: yesFrontiers in Chemistry, 2022
The photodriven radical-mediated [3 + 2] cyclization reaction was found to yield polymers efficiently without being hindered by degradative chain transfer.
Xiaotian Zhao   +7 more
doaj   +1 more source

Photoinduced Ring Opening of Methyl 1-Aryl-5-oxo-6,7-dihydro-1H,5H-pyrazolo[1,2-a]pyrazole-2-carboxylates in the Presence of Diaryl Disulfides

open access: yesMolbank, 2023
Among the methods used for the synthesis of functionalized heterocyclic compounds, photochemistry has gained immense popularity due to the reactivity of intermediates in photoinduced reactions.
Nejc Petek, Uroš Grošelj
doaj   +1 more source

Ab initio chemical kinetics of Isopropyl acetate oxidation with OH radicals

open access: yesGreen Chemistry Letters and Reviews, 2023
Global reactivity descriptors of isopropyl acetate (IPA) and thermo-kinetic aspects of its oxidation via OH radicals have been studied. Transition state theory (TST) was utilized to estimate the bimolecular rate constants.
Mohamed A. Abdel-Rahman   +3 more
doaj   +1 more source

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