Results 1 to 10 of about 7,841,690 (187)

C–H Activation: Toward Sustainability and Applications

open access: yesACS Central Science, 2021
Since the definition of the “12 Principles of Green Chemistry” more than 20 years ago, chemists have become increasingly mindful of the need to conserve natural resources and protect the environment through the judicious choice of synthetic routes and ...
Toryn Dalton   +2 more
doaj   +2 more sources

Visible light-driven C−H activation and C–C coupling of methanol into ethylene glycol

open access: yesNature Communications, 2018
Direct transformation of methanol into two- or multi-carbon compounds is extremely attractive but remains a challenge. Here, the authors report an efficient photocatalytic route to the transformation of methanol into ethylene glycol and hydrogen over a ...
Shunji Xie   +10 more
doaj   +2 more sources

Asymmetric S=N-embedded polyaromatic construction via enantioselective Pd-catalyzed C–H activation [PDF]

open access: yesNature Communications
Heteroatom-doped polyaromatic hydrocarbons show great potential for advancing photoelectric materials. SVI=N doping, characterized by soft-hard atom binding, donor-acceptor transmission, and chiroptical tuning, provides a powerful approach for further ...
Daming Zeng   +3 more
doaj   +2 more sources

Light-driven C–H activation mediated by 2D transition metal dichalcogenides [PDF]

open access: yesNature Communications
C–H bond activation enables the facile synthesis of new chemicals. While C–H activation in short-chain alkanes has been widely investigated, it remains largely unexplored for long-chain organic molecules.
Jingang Li   +20 more
doaj   +2 more sources

Nickel(II)/BINOL-catalyzed enantioselective C–H activation via desymmetrization and kinetic resolution [PDF]

open access: yesNature Communications
The field of nickel catalysis has witnessed remarkable growth in recent years. However, the use of nickel catalysts in enantioselective C–H activation remains a daunting challenge because of their variable oxidation states, intricate coordination ...
Qi-Jun Yao   +3 more
doaj   +2 more sources

Photocatalytic C−H activation and C−C coupling of monohydric alcohols

open access: yesCatalysis Communications, 2021
Monohydric alcohols, such as methanol, ethanol, are useful chemical building blocks that can be facilely produced from various carbon resources. The direct conversion of alcohols into high-value-added chemicals, in particular diols, is attractive but ...
Limei Wang   +5 more
doaj   +1 more source

Au-Catalyzed Cross-Coupling of Arenes via Double C–H Activation [PDF]

open access: yesJournal of the American Chemical Society, 2015
The first methodology for Au(I/III)-catalyzed oxidative cross-coupling of arenes via double C-H activation has been developed. The reaction is fully selective for the cross-coupling between electron-rich hetero-/carbocyclic arenes and electron-poor arenes bearing relatively acidic C-H bonds.
Cambeiro, XC, Ahlsten, N, Larrosa, I
openaire   +6 more sources

Pt1 enhanced C-H activation synergistic with Ptn catalysis for glycerol cascade oxidation to glyceric acid

open access: yesNature Communications, 2022
The selective oxidation of glycerol to glyceric acid, an important value-added reaction from polyols, is a typical cascade catalytic process. It is still of great challenge to simultaneously achieve high glycerol activity and glyceric acid selectivity ...
Z. An   +11 more
semanticscholar   +1 more source

Strategies to transform remote C(sp3)-H bonds of amino acid derivatives

open access: yesTetrahedron Chem, 2022
Amino acids and peptides play an important role in nature as well as in the pharmaceutical industry. Therefore, transformation of amino acids and peptides into their unnatural derivatives via step and atom economical ways is highly demanding. Although, a
Supreeta Sen   +2 more
doaj   +1 more source

Steam-created grain boundaries for methane C–H activation in palladium catalysts

open access: yesScience, 2021
Description Going with the grain Changes in surface structure can make metal nanoparticles supported on oxides more active for certain catalytic reactions. Huang et al.
Weixin Huang   +12 more
semanticscholar   +1 more source

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