Journal ArticleDOI
Cobalt-Catalyzed Oxidant-Free Spirocycle Synthesis by Liberation of Hydrogen.
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TLDR
The first example of oxidant-free cobalt-catalyzed synthesis of five-membered spirocycles is reported from benzimidates and maleimides utilizing nitrobenzene as promoter.About:
This article is published in Organic Letters.The article was published on 2017-08-21. It has received 98 citations till now. The article focuses on the topics: Reactivity (chemistry) & Catalysis.read more
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3d Transition Metals for C-H Activation.
Parthasarathy Gandeepan,Thomas Müller,Daniel Zell,Gianpiero Cera,Svenja Warratz,Lutz Ackermann +5 more
TL;DR: A comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018 is provided.
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Cobalt-Catalyzed Annulation Reactions via C−H Bond Activation
TL;DR: In this article, the authors summarize the features and recent achievements of the Co-catalyzed directing group assisted C-H activation/cyclization reactions and their mechanistic insights.
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Dehydrogenative Coupling of Benzylic and Aldehydic C–H Bonds
TL;DR: These reactions provide a straightforward pathway from readily available materials leading to valued structural motifs of pharmacological relevance.
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Synthesis of Fused or Spiro Polyheterocyclic Compounds via the Dehydrogenative Annulation Reactions of 2-Arylindazoles with Maleimides.
TL;DR: Interestingly, the selectivity to form the fused or spiro compounds could be switched by resorting to different additives, and the notable features of this protocol include simple substrates and excellent atom economy and regioselectivity.
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Cp*Co(III)-Catalyzed C-H Acylmethylation of Arenes by Employing Sulfoxonium Ylides as Carbene Precursors.
TL;DR: A Cp*Co(III)-catalyzed C-H bond functionalization of a range of arenes by employing sulfoxonium ylides as carbene precursors instead of diazo compounds and other carbene Precursors has been established.
References
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Palladium-Catalyzed Ligand-Directed C−H Functionalization Reactions
TL;DR: This is the first comprehensive review encompassing the large body of work in this field over the past 5 years, and will focus specifically on ligand-directed C–H functionalization reactions catalyzed by palladium.
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Ruthenium(II)-Catalyzed C–H Bond Activation and Functionalization
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Weak coordination as a powerful means for developing broadly useful C-H functionalization reactions.
TL;DR: The motivation for studying Pd-catalyzed C-H functionalization assisted by weakly coordinating functional groups is discussed, and efforts to bring reactions of this type to fruition are chronicle.
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Recent advances in the transition metal-catalyzed twofold oxidative C–H bond activation strategy for C–C and C–N bond formation
TL;DR: This critical review covers the recent progresses on the regioselective dehydrogenative direct coupling reaction of heteroarenes, including arylation, olefination, alkynylation, and amination/amidation mainly utilizing transition metal catalysts.
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Catalytic Functionalization of C(sp2) ? H and C(sp3) ? H Bonds by Using Bidentate Directing Groups
Guy Rouquet,Naoto Chatani +1 more
TL;DR: It would, therefore, appear that direct functionalization of substrates by activation of C-H bonds would eliminate the multiple steps and limitations associated with the preparation of functionalized starting materials.