Journal ArticleDOI
Directing group strategies in catalytic sp2 C–H cyanations: scope, mechanism and limitations
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In this article, the authors mainly focus on catalytic methodologies of transition metal-catalyzed sp2 C-H bond cyanation assisted by a directing group, with emphasis on reaction scopes, limitations and mechanisms.About:
This article is published in Catalysis Science & Technology.The article was published on 2021-05-25. It has received 8 citations till now. The article focuses on the topics: Cyanation.read more
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Site-Selective Electrochemical C-H Cyanation of Indoles.
TL;DR: An electrochemical approach for the site-selective C-H cyanation of indoles employing readily available TMSCN as cyano source has been developed in this paper, which relies on the tris(4-bromophenyl)amine as a redox catalyst, which achieves better yield and regioselectivity.
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Copper‐Mediated and Catalyzed C‐H Bond Amination via Chelation‐Assistance : Scope, Mechanism and Synthetic Applications
TL;DR: In this article , the research progress of copper-catalyzed C-H amination in recent years is summarized and reaction mechanisms are also briefly described in representative aminations to provide insights for the development prospects of highly practical and more environmentally benign processes.
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Catalytic Cyanation of C–N Bonds with CO2/NH3
TL;DR: The first general catalytic cyanation of α-(hetero)aryl amines, analogous to the Sandmeyer reaction of anilines, was developed using reductive cyanation with CO2/NH3 as discussed by the authors .
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Directing group strategies in rhodium-catalyzed C-H amination.
TL;DR: In this paper , the reactivity and selectivity of chelation-assisted rhodium-catalyzed C-H amination are discussed in relation to the types of aminating reagent, as well as the challenges and future development prospects in this field.
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The stable “F–SO2+” donor provides a mild and efficient approach to nitriles and amides
TL;DR: In this article , a mild, efficient and practical method using fluorosulfuryl imidazolium salt A as an environment friendly promoter for conversion of oximes to nitriles or amides via β-elimination or Beckmann rearrangement was developed.
References
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Journal ArticleDOI
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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Rhodium-Catalyzed C-C Bond Formation via Heteroatom-Directed C-H Bond Activation
TL;DR: This review focuses on Rh-catalyzed methods for C-H bond functionalization, which have seen widespread success over the course of the last decade and are discussed in detail in the accompanying articles in this special issue of Chemical Reviews.
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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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Towards mild metal-catalyzed C–H bond activation
TL;DR: This critical review summarizes and discusses endeavours towards the development of mild C-H activation methods and wishes to trigger more research towards this goal.