Results 241 to 250 of about 2,752,747 (293)
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Journal of the American Chemical Society, 2022
Hydrogen-atom transfer mediated by earth-abundant transition-metal hydrides (M-Hs) has emerged as a powerful tool in organic synthesis. Current methods to generate M-Hs most frequently rely on oxidatively initiated hydride transfer.
Xiangyu Wu +7 more
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Hydrogen-atom transfer mediated by earth-abundant transition-metal hydrides (M-Hs) has emerged as a powerful tool in organic synthesis. Current methods to generate M-Hs most frequently rely on oxidatively initiated hydride transfer.
Xiangyu Wu +7 more
semanticscholar +1 more source
Journal of the American Chemical Society, 2021
Radical hydroalkylation of olefins enabled by hydrogen atom transfer (HAT) catalysis represents a straightforward means to access C(sp3)-rich molecules from abundant feedstock chemicals without the need for prefunctionalization.
Guangyu Lei +4 more
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Radical hydroalkylation of olefins enabled by hydrogen atom transfer (HAT) catalysis represents a straightforward means to access C(sp3)-rich molecules from abundant feedstock chemicals without the need for prefunctionalization.
Guangyu Lei +4 more
semanticscholar +1 more source
ACS Catalysis, 2020
Herein, we report that merging palladium catalysis with hydrogen atom transfer (HAT) photocatalysis enabled direct arylations and alkenylations of aldehyde C–H bonds, facilitating visible light-cat...
Lu Wang +9 more
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Herein, we report that merging palladium catalysis with hydrogen atom transfer (HAT) photocatalysis enabled direct arylations and alkenylations of aldehyde C–H bonds, facilitating visible light-cat...
Lu Wang +9 more
semanticscholar +1 more source
Hydrogenation of Alkenes via Cooperative Hydrogen Atom Transfer.
Journal of the American Chemical Society, 2020Radical hydrogenation via hydrogen atom transfer (HAT) to alkenes is an increasingly important transformation for the formation of thermodynamic alkane isomers.
Padmanabha V. Kattamuri, Julian G. West
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Photocatalytic hydrogen atom transfer: the philosopher's stone for late-stage functionalization?
, 2020An overview about the potentialities of photocatalytic Hydrogen Atom Transfer (HAT) for the Late-Stage Functionalization (LSF) of complex molecules is offered.
Luca Capaldo +2 more
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The Atomic Hydrogen Maser [PDF]
IRE Transactions on Instrumentation, 1961 The atomic hydrogen maser is described. In this device hydrogen atoms in the upper hyperfine state are focused onto the entrance aperture of a Teflon coated quartz bulb in which the atoms are stored for about a second. This bulb is surrounded by a cylindrical radiofrequency cavity; When the cavity is tuned to the hyperfine frequency of atomic hydrogen,
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Metal-Free Electrocatalyst for Water Oxidation Initiated by Hydrogen Atom Transfer
, 2020Direct activation of O–H bond in water via hydrogen atom transfer (HAT) reactions is a challenge because of its high bond dissociation energy.
Han Li, Fei Xie, Ming‐Tian Zhang
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, 2010 Based on the discussions in Chap. 4 we will now apply the quantum mechanical treatment to the simplest atom, the H atom, which consists of one proton and one electron moving in the spherical symmetric Coulomb potential of the proton. These one-electron systems, such as the hydrogen atom and the ions He+, Li++, Be+++, etc., are the only real systems for
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Lithuanian Mathematical Journal, 2007 We represent the deterministic substitute of the Schrodinger equation for a hydrogen atom in precise accordance with the Bohm-de Broglie interpretation of quantum mechanics. To construct a mathematical model, the Weierstrass theorem and limit cycles are used. This method can be applied to many-electron atoms.
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Angewandte Chemie, 2019
A dual catalytic protocol for the direct arylation of non-activated C(sp3 )-H bonds has been developed. Upon photochemical excitation, the excited triplet state of a diaryl ketone photosensitizer abstracts a hydrogen atom from an aliphatic C-H bond. This
Abhishek Dewanji +2 more
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A dual catalytic protocol for the direct arylation of non-activated C(sp3 )-H bonds has been developed. Upon photochemical excitation, the excited triplet state of a diaryl ketone photosensitizer abstracts a hydrogen atom from an aliphatic C-H bond. This
Abhishek Dewanji +2 more
semanticscholar +1 more source