Results 31 to 40 of about 29,655,632 (304)

Ruthenium-Catalyzed Oxidative Synthesis of N-(2-triazine)indoles by C-H Activation

open access: yesMolecules, 2023
1,3,5 triazines, especially indole functionalized triazine derivatives, exhibit excellent activities, such as anti-tumor, antibacterial, and anti-inflammatory activities.
Ming Zeng   +7 more
doaj   +1 more source

Regioselective C-H Functionalization of the Six-Membered Ring of the 6,5-Fused Heterocyclic Systems: An Overview

open access: yesMolecules, 2021
The regioselective C-H functionalization of the five-membered ring of the 6,5-fused heterocyclic systems is nowadays well documented due to its high reactivity compared to the six-membered ring.
Soukaina Faarasse   +3 more
doaj   +1 more source

In Silico Rationalisation of Selectivity and Reactivity in Pd-Catalysed C-H Activation Reactions [PDF]

open access: yes, 2020
A computational approach has been developed to automatically generate and analyse the structures of the intermediates of palladium catalysed carbon-hydrogen (C-H) activation reactions as well as to predict the final products.
Steve, Ley   +3 more
core   +1 more source

Photoinduced homolytic C–H activation in N-(4-homoadamantyl)phthalimide

open access: yesBeilstein Journal of Organic Chemistry, 2011
N-(4-homoadamantyl)phthalimide (5) on excitation and population of the triplet excited state underwent intramolecular H-abstractions and gave products 6 and 7.
Nikola Cindro   +4 more
doaj   +1 more source

Enantioselective Rhodium-Catalyzed C–C Bond Activations

open access: yesCHIMIA, 2010
The catalytic activation of carbon–carbon single bonds represents a major challenge in organometallic chemistry. Strained ring substrates occupy in this respect a privileged role as their inherent ring strain facilitates the desired metal ...
Tobias Seiser, Nicolai Cramer
doaj   +1 more source

Rh(III)-catalyzed directed C–H bond amidation of ferrocenes with isocyanates

open access: yesBeilstein Journal of Organic Chemistry, 2012
[RhCp*(OAc)2(H2O)] [Cp* = pentamethylcyclopentadienyl] catalyzed the C–H bond amidation of ferrocenes possessing directing groups with isocyanates in the presence of 2 equiv/Rh of HBF4·OEt2.
Satoshi Takebayashi   +3 more
doaj   +1 more source

Manganese-Catalyzed C–H Activation

open access: yesACS Catalysis, 2016
Manganese is found in the active center of numerous enzymes that operate by an outer-sphere homolytic C–H cleavage. Thus, a plethora of bioinspired radical-based C–H functionalizations by manganese catalysis have been devised during the past decades. In contrast, organometallic C–H activation by means of manganese catalysis has emerged only recently as
Weiping Liu, Lutz Ackermann
openaire   +2 more sources

Late-stage peptide C–H alkylation for bioorthogonal C–H activation featuring solid phase peptide synthesis

open access: yesNature Communications, 2019
Palladium-catalyzed late-stage diversification of structurally complex peptides has major shortcomings. Here, the authors developed a ruthenium-catalyzed C–H alkylations of peptides allowing for fluorescence labeling, late-stage diversifications and ...
Alexandra Schischko   +5 more
doaj   +1 more source

On the Use of Iron in Organic Chemistry

open access: yesMolecules, 2020
Transition metal catalysis in modern organic synthesis has largely focused on noble transition metals like palladium, platinum and ruthenium. The toxicity and low abundance of these metals, however, has led to a rising focus on the development of the ...
Arnar Guðmundsson, Jan-E. Bäckvall
doaj   +1 more source

Sulfoximines-Assisted Rh(III)-Catalyzed C–H Activation and Intramolecular Annulation for the Synthesis of Fused Isochromeno-1,2-Benzothiazines Scaffolds under Room Temperature

open access: yesMolecules, 2020
A mild and facile Cp*Rh(III)-catalyzed C–H activation and intramolecular cascade annulation protocol has been proposed for the furnishing of highly fused isochromeno-1,2-benzothiazines scaffolds using S-phenylsulfoximides and 4-diazoisochroman-3-imine as
Bao Wang   +4 more
doaj   +1 more source

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