scholarly journals Organic synthesis: Volume 1: Open-chain saturated compounds. Volume 2: Open-chain unsaturated compounds, alicyclic compounds, aromatic compounds (Migrdichian, Vartkes)

1957 ◽  
Vol 34 (8) ◽  
pp. 417
Author(s):  
Arthur G. Anderson
Keyword(s):  
Organic Synthesis ◽  
Aromatic Compounds ◽  
Open Chain ◽  
Unsaturated Compounds

Recent Advances in C–Br Bond Formation

Synlett ◽  
2021 ◽  
Author(s):  
Ying-Yeung Yeung ◽  
Jonathan Wong
Keyword(s):  
Organic Synthesis ◽  
Aromatic Compounds ◽  
Bond Formation ◽  
Cross Coupling ◽  
Catalytic Site ◽  
Atom Transfer ◽  
Bond Forming ◽  
Recent Advances ◽  
Catalytic Asymmetric ◽  
Site Selective

AbstractOrganobromine compounds are extremely useful in organic synthesis. In this perspective, a focused discussion on some recent advancements in C–Br bond-forming reactions is presented.1 Introduction2 Selected Recent Advances2.1 Catalytic Asymmetric Bromopolycyclization of Olefinic Substrates2.2 Catalytic Asymmetric Intermolecular Bromination2.3 Some New Catalysts and Reagents for Bromination2.4 Catalytic Site-Selective Bromination of Aromatic Compounds2.5 sp3 C–H Bromination via Atom Transfer/Cross-Coupling3 Outlook

scholarly journals Applications of transition metal catalyzed P-radical for synthesis of organophosphorus compounds

2019 ◽  
Vol 91 (1) ◽  
pp. 87-94 ◽  
Author(s):  
Wei Ren ◽  
Qiang Yang ◽  
Shang-Dong Yang
Keyword(s):  
Transition Metal ◽  
Recent Work ◽  
Organic Synthesis ◽  
Organophosphorus Compounds ◽  
Powerful Method ◽  
Unsaturated Compounds ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Abstract Phosphorus-radical participated difunctionalization reactions with unsaturated compounds have been recognized as powerful method for organic synthesis. This review covers our recent work on the application of transition metal catalyzed P-radical promoted difunctionalization for synthesis of organophosphorus compounds.

scholarly journals Redox-neutral Photocatalytic C-H Carboxylation of Arenes and Styrenes with CO2

2020 ◽  
Author(s):  
Matthias Schmalzbauer ◽  
Thomas D. Svejstrup ◽  
Florian Fricke ◽  
Peter Brandt ◽  
Magnus J. Johansson ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Organic Synthesis ◽  
High Throughput ◽  
Electron Affinity ◽  
Aromatic Compounds ◽  
High Throughput Screening ◽  
Computational Analysis ◽  
High Energy ◽  
Radical Anions ◽  
Light Excitation

Carbon dioxide (CO<sub>2</sub>) is an attractive one-carbon (C1) building block in terms of sustainability and abundance. However, its low reactivity limits applications in organic synthesis as typically high-energy reagents are required to drive transformations. Here, we present a redox-neutral C−H carboxylation of arenes and styrenes using a photocatalytic approach. Upon blue-light excitation, the anthrolate anion photocatalyst is able to reduce many aromatic compounds to their corresponding radical anions, which react with CO<sub>2</sub> to afford carboxylic acids. High-throughput screening and computational analysis suggest that a correct balance between electron affinity and nucleophilicity of substrates is essential. This novel methodology enables the carboxylation of numerous aromatic compounds, including many that are not tolerated in classical carboxylation chemistry. Over 50 examples of C−H functionalizations using CO<sub>2</sub> or ketones illustrate a broad applicability. The method opens new opportunities for late-stage C−H carboxylation and valorization of common arenes.

scholarly journals Vinylogous and Arylogous Stereoselective Base-Promoted Phase-Transfer Catalysis

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1545
Author(s):  
Assunta D’Amato ◽  
Giorgio Della Sala
Keyword(s):  
Organic Synthesis ◽  
Phase Transfer Catalysis ◽  
Negative Charge ◽  
Phase Transfer ◽  
Bond Formation ◽  
Metal Catalysis ◽  
Carbon Nucleophiles ◽  
Unsaturated Compounds

Vinylogous enolate and enolate-type carbanions, generated by deprotonation of α,β-unsaturated compounds and characterized by delocalization of the negative charge over two or more carbon atoms, are extensively used in organic synthesis, enabling functionalization and C–C bond formation at remote positions. Similarly, reactions with electrophiles at benzylic and heterobenzylic position are performed through generation of arylogous and heteroarylogous enolate-type nucleophiles. Although widely exploited in metal-catalysis and organocatalysis, it is only in recent years that the vinylogy and arylogy principles have been translated fruitfully in phase-transfer catalyzed processes. This review provides an overview of the methods developed to date, involving vinylogous and (hetero)arylogous carbon nucleophiles under phase-transfer catalytic conditions, highlighting main mechanistic aspects.

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