Results 81 to 90 of about 35,146,565 (216)

C−H and C−C Bond Activation of Primary Amines through Dehydrogenation and Transimination

open access: yes, 2016
Dehydrogenation and subsequent transimination of primary amines offer a new pathway for C−H bond activation, ortho-alkylation, and C−C bond activation to afford a variety of ketones in the reaction of 1-alkene by a cocatalyt system of Rh(I) and 2-amino-3-
Jun-Bae Hong (1856974)   +2 more
core   +1 more source

Zinc-indium-sulfide favors efficient C − H bond activation by concerted proton-coupled electron transfer

open access: yesNature Communications
C − H bond activation is a ubiquitous reaction that remains a major challenge in chemistry. Although semiconductor-based photocatalysis is promising, the C − H bond activation mechanism remains elusive.
Xuejiao Wu   +7 more
doaj   +1 more source

C–H bond activation of benzene and thiophene by photochemically generated rhenocene cation

open access: yesInternational Journal of Photoenergy, 1999
A cationic rhenocene-acetonitrile adduct [Cp2Re(NCMe)](BF4)(1) reacted with an excess of benzene, thiophene, 2-methylthiophene, and pyrrole under UV irradiation to afford the C–H bond activation products [Cp2Re(H)R]BF4 (R = phenyl, 2-thienyl, 2-(5 ...
Hiroshi Ogino   +3 more
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Unusual C–H Bond Activation and C(sp3)–C(sp3) Bond Formation at an Fe(II) Bis(amide) Carbene Complex [PDF]

open access: yes, 2019
Treatment of (IMes)Fe(NTMS2)2 with 4 equiv of methanesulfonyl chloride (MsCl = MeSO2Cl) resulted in a complex reaction sequence involving substitution of two TMS groups for Ms, followed by the unexpected C(sp3)-H bond activation of Ms and subsequent C ...
Wong, Anthony   +7 more
core   +1 more source

Different Patterns of Pd-Promoted C-H Bond Activation in (Z)-4-Hetarylidene-5(4H)-oxazolones and Consequences in Photophysical Properties

open access: yesInorganics
This work aims to amplify the fluorescence of (Z)-4-hetarylidene-5(4H)-oxazolones 1 by suppression of the hula-twist non-radiative deactivation pathway by C^N-orthopalladation of the 4-hetarylidene ring.
Miguel Martínez   +6 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Nickel-Catalyzed Alkenylation and Alkylation of Fluoroarenes via Activation of C−H Bond over C−F Bond

open access: yes, 2016
Nickel-Catalyzed Alkenylation and Alkylation of Fluoroarenes via Activation of C−H Bond over C−F ...
Natsuko Kashihara (2261398)   +3 more
core   +1 more source

Transition Metal Catalyzed C−H bond Activation as a Sustainable Strategy for The Synthesis of Fluorinated Molecules: An overview

open access: yes, 2023
International audienceThe last decade has witnessed the emergence of innovative synthetic tools for the synthesis of fluorinated molecules. Among these approaches, the transition metal catalyzed functionalization of various scaffolds with a panel of ...
Besset, Tatiana   +2 more
core   +1 more source

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