Results 31 to 40 of about 3,838,786 (204)
Manganese-Catalyzed C–H Activation
ACS 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
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Enantioselective Rhodium-Catalyzed C–C Bond Activations
CHIMIA, 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
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A cooperative Pd-Cu system for direct C-H bond arylation [PDF]
, 2014 The authors are grateful to the Royal Society (University Research Fellowship to CSJC) for financial support.A novel and efficient method for C-H arylation using well-defined Pd- and Cu-NHC systems has been developed.
Cazin, Catherine S. J. +2 more
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Rh(III)-catalyzed directed C–H bond amidation of ferrocenes with isocyanates
Beilstein 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
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Electrochemical Cobalt‐Catalyzed C−H Activation
Chemistry – A European Journal, 2018 AbstractCarbon–heteroatom bonds represent omnipresent structural motifs of the vast majority of functionalized materials and bioactive compounds. C−H activation has emerged as arguably the most efficient strategy to construct C−Het bonds. Despite of major advances, these C−H transformations were largely dominated by precious transition metal catalysts,
Nicolas Sauermann +2 more
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Nature 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
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On the Use of Iron in Organic Chemistry
Molecules, 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
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The role of alkane coordination in C–H bond cleavage at a Pt(II) center [PDF]
, 2007 The rates of CFormula H bond activation for various alkanes by [(N–N)Pt(Me)(TFEd3)]+ (N Formula N = ArFormula NFormula C(Me)Formula C(Me)Formula NFormula Ar; Ar = 3,5-di-tert-butylphenyl; TFE-d3 = CF3CD2OD) were studied.
G. S. Chen +12 more
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Divergent isoindolinone synthesis through palladium-catalyzed isocyanide bridging C–H activation
Cell Reports Physical Science, 2022 Summary: The formation of thermodynamically accessible metallacycle is crucial to achieve site-selective C–H bond activation. Here, we report an isocyanide-bridging C–H activation through the formation of a five-membered palladacycle. As such, a proximal
Fulin Zhang +6 more
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Carboxylic Solvents and O-Donor Ligand Effects on CH Activation by Pt(II) [PDF]
, 2006 We report on the design of more efficient C−H activation catalysts based on DFT calculations. The first examples of well-defined, N,O-donor ligated platinum complexes that are competent for fast C−H activation are detailed.
Goddard, William A., III +5 more
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