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Carbene

About: Carbene is a(n) research topic. Over the lifetime, 16644 publication(s) have been published within this topic receiving 458390 citation(s).

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Papers
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Journal ArticleDOI: 10.1021/JA00001A054
Abstract: Synthese, structure et caracterisation du (1,3-bis [1-adamantyl]-2,3-dihydro)-2-carbenoimidazole prepare par deprotonation du chlorure de (1,3-bis [1-adamantyl]) imidazolium

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3,140 Citations


Journal ArticleDOI: 10.1002/ANIE.200703883
F. Ekkehardt Hahn1, Mareike C. Jahnke1Institutions (1)
14 Apr 2008-Angewandte Chemie
Abstract: The chemistry of heterocyclic carbenes has experienced a rapid development over the last years. In addition to the imidazolin-2-ylidenes, a large number of cyclic diaminocarbenes with different ring sizes have been described. Aside from diaminocarbenes, P-heterocyclic carbenes, and derivatives with only one, or even no heteroatom within the carbene ring are known. New methods for the synthesis of complexes with N-heterocyclic carbene ligands such as the oxidative addition or the metal atom template controlled cyclization of β-functionalized isocyanides have been developed recently. This review summarizes the new developments regarding the synthesis of N-heterocyclic carbenes and their metal complexes.

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2,320 Citations


Journal ArticleDOI: 10.1021/CR900239N
10 Feb 2010-Chemical Reviews
Topics: Carbene (58%)

1,196 Citations


Open accessBook
19 Jan 1998-
Abstract: Synthesis of Alpha-Diazocarbonyl Compounds Catalysts for Metal Carbene Transformations Insertion Reactions Intermolecular Cyclopropanation and Related Addition Reactions Intramolecular Cyclopropanation and Related Addition Reactions Cycloaddition and Substitution Reactions with Aromatic and Heteroaromatic Compounds Generation and Reactions of Ylides from Diazocarbonyl Compounds X-H Insertion Reactions of Diazocarbonyl Compounds (X = N,O,S,Se,P, Halogen) The Wolff Rearrangement and Related Reactions Reactions of Alpha-Diazocarbonyl Compounds with Aldehydes and Ketones Acid-Promoted Cyclization of Unsaturated and Aromatic Diazo Ketones Miscellaneous Diazocarbonyl Reactions Index

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Topics: Organic reaction (66%), Diazo (62%), Wolff rearrangement (57%) ...read more

1,100 Citations


Journal ArticleDOI: 10.1021/OM9709704
Harrison M. J. Wang1, Ivan J. B. Lin1Institutions (1)
12 Feb 1998-Organometallics
Abstract: [Ag(Et2-Bimy)2][AgBr2] (1; Et2-Bimy = diethylbenzimidazol-2-ylidene) was obtained readily from the reaction of [Et2-BimyH]Br with Ag2O. Compound 2, [Ag(Et2-Bimy)2]PF6, was prepared by the reaction of [Et2-Bimy]PF6 with Ag2O under basic phase transfer catalysis conditions. Both compounds 1 and 2 are good carbene transfer agents. Thus, Pd(Et2-Bimy)2Cl2, Au(Et2-Bimy)Br, and [Au(Et2-Bimy)2]PF6 were obtained in high yields using 1 and 2 as carbene sources. The byproduct AgBr or AgCl can be reused to generate 1 under basic phase transfer catalysis conditions. The crystal structure of compound 1 revealed that linear [Ag(Et2-Bimy)2]+ and [AgBr2]- groups were associated through a short AgI−AgI contact (2.956 A). FAB/mass spectrometry and molar conductivity measurements indicate the existence of ligand-unsupported AgI−AgI interactions in the gas phase and acetonitrile solution. 13C NMR studies suggest that the two Bimy ligands in 1 are fluxional in solution.

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Topics: Carbene (55%), Molar conductivity (51%), Acetonitrile (50%)

975 Citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20223
2021552
2020539
2019593
2018560
2017601

Top Attributes

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Topic's top 5 most impactful authors

Steven P. Nolan

136 papers, 12K citations

William D. Wulff

123 papers, 3.1K citations

Guy Bertrand

116 papers, 8K citations

Wolfgang A. Herrmann

112 papers, 8.5K citations

İsmail Özdemir

98 papers, 1.9K citations

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