Results 1 to 10 of about 3,837,372 (238)

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

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

When transition-metal-catalyzed C–H activation meets allene chemistry

open access: yesTetrahedron Chem, 2023
Transition-metal-catalyzed allenes-involved C–H functionalizations demonstrate unique selectivity and undergo exceptional pathways due to the existence of elusive orthogonal cumulative CCC bonds.
Shu-Meng Deng   +2 more
doaj   +1 more source

Functionalization of Porphyrins Using Metal-Catalyzed C–H Activation

open access: yesInorganics, 2022
The review is devoted to the C–H functionalization of porphyrins. Porphyrins exhibit the properties of organic semiconductors, light energy converters, chemical and electrochemical catalysts, and photocatalysts.
Aleksey N. Kiselev   +3 more
doaj   +1 more source

Rollover Cyclometalation as a Valuable Tool for Regioselective C–H Bond Activation and Functionalization

open access: yesMolecules, 2021
Rollover cyclometalation constitutes a particular case of cyclometallation reaction. This reaction occurs when a chelated heterocyclic ligand loses its bidentate coordination mode and undergoes an internal rotation, after which a remote C–H bond is ...
Antonio Zucca, Maria I. Pilo
doaj   +1 more source

A synthetic, catalytic and theoretical investigation of an unsymmetrical SCN pincer palladacycle [PDF]

open access: yesRoyal Society Open Science, 2016
The SCN ligand 2-{3-[(methylsulfanyl)methyl]phenyl}pyridine, 1, has been synthesized starting from an initial Suzuki–Miyaura (SM) coupling between 3-((hydroxymethyl)phenyl)boronic acid and 2-bromopyridine.
Gavin W. Roffe   +10 more
doaj   +1 more source

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