Cobalt-catalyzed nucleophilic addition of the allylic C(sp3)–H bond of simple alkenes to ketones
We herein describe a cobalt/Xantphos-catalyzed regioselective addition of simple alkenes to acetophenone derivatives, affording branched homoallylic alcohols in high yields with perfect branch selectivities.
Tsuyoshi Mita +3 more
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Catalytic Asymmetric Functionalization of Inert Bonds and Synthesis of Bioactive Natural Products
The direct and enantioselective functionalization of inert bonds such as carbon–hydrogen and carbon–carbon is an emerging tool towards more sustainable and efficient synthetic methods.
Nicolai Cramer
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Efficient Dehydrogenation of Amines and Carbonyl Compounds Catalyzed by a Tetranuclear Ruthenium-μ-oxo-μ-hydroxo-hydride Complex [PDF]
The tetranuclear ruthenium-μ-oxo-μ-hydroxo-hydride complex {[(PCy3)(CO)RuH]4(μ4-O)(μ3-OH)(μ2-OH)} (1) was found to be a highly effective catalyst for the transfer dehydrogenation of amines and carbonyl compounds. For example, the initial turnover rate of
Lee, Do W., Yi, Chae S.
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Phenylacetylene and Carbon Dioxide Activation by an Organometallic Samarium Complex
Small molecule activation is a topic of growing importance and the use of low-valent f-elements to perform these reactions is nowadays well established.
Violaine Goudy +6 more
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C−H Bond Activation by Dicationic Platinum(II) Complexes [PDF]
Double protonolysis of diimine platinum dimethyls [(N-N)PtMe_2] (N-N ═ ArNC(Me)C(Me) ═ NAr) generates dicationic Pt(II) complexes that can activate a variety of C−H bonds, liberating 1 equiv of acid and forming organoplatinum species that are moderately ...
Bercaw, John E. +3 more
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Effects of Low Cell pH and Elevated Inorganic Phosphate on the pCa-Force Relationship in Single Muscle Fibers at Near-Physiological Temperatures [PDF]
Intense muscle contraction induces high rates of ATP hydrolysis with resulting increases in Pi, H+, and ADP, factors thought to induce fatigue by interfering with steps in the cross-bridge cycle.
Fitts, Robert H., Nelson, Cassandra R.
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Cycloaddition Chemistry of a Silylene‐Nickel Complex toward Organic π‐Systems: From Reversibility to C−H Activation [PDF]
The versatile cycloaddition chemistry of the Si−Ni multiple bond in the acyclic (amido)(chloro)silylene→Ni0 complex 1, [(TMSL)ClSi→Ni(NHC)2] (TMSL=N(SiMe3)Dipp; Dipp=2,6‐iPr2C6H4; NHC=C[(iPr)NC(Me)]2), toward unsaturated organic substrates is reported ...
Drieß, Matthias +2 more
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Intermolecular Radical C–H Bond Activation: A Powerful Tool for Late Stage Functionalization
The synthesis of complex molecules via radical reactions involving carbon–carbon and carbon–heteroatom bonds has become a very successful approach. Radical chemistry has long been dominated by the use of tin-based reagents.
Fabrice Dénès
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A unified survey of Si-H and H-H bond activation catalysed by electron-deficient boranes [PDF]
The bond activation chemistry of B(C6F5)(3) and related electron-deficient boranes is currently experiencing a renaissance due to the fascinating development of frustrated Lewis pairs (FLPs).
Hermeke, Julia +2 more
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Rhodium complexes bearing tetradentate diamine-bis(phenolate) ligands [PDF]
Using tetradentate, dianionic ligands, several new rhodium complexes have been prepared. Some of these diamine-bis(phenolate) compounds, are active for C–H activation of benzene. These complexes are air and thermally stable.
Ganesh, Somesh K. +6 more
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