Journal ArticleDOI
Synthesis of Imidazol-2-ylidenes by Reduction of Imidazole-2(3H)-thiones
Norbert Kuhn,Thomas Kratz +1 more
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TLDR
In this article, an improved synthesis of the title compounds was reported, and the N,N'-dialkylthioureas 1 with 3-hydroxy-2-butanone gave the imidazole-2(3H)-thiones 2 which on treatment with potassium in boiling tetrahydrofuran give the IMidazol-2ylidenes 3 in excellent yieldsAbstract:
An improved synthesis of the title compounds is reported. Reaction of the N,N'-dialkylthioureas 1 with 3-hydroxy-2-butanone gives the imidazole-2(3H)-thiones 2 which on treatment with potassium in boiling tetrahydrofuran give the imidazol-2-ylidenes 3 in excellent yieldsread more
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Book ChapterDOI
N-Heterocyclic Carbenes
TL;DR: A review of the early history of N-heterocyclic carbenes can be found in this article, where the authors present examples of acyclic and three-to eight-membered NHCs.
Journal ArticleDOI
Syntheses, Structures, and Reactivity of NHC Copper(I) Boryl Complexes: A Systematic Study
TL;DR: In this article, NHC copper boryl complexes were synthesized by B-B activation via σ-bond metathesis of symmetrical tetraalkoxy and unsymmetrical dialkoxy diamino diborane(4) derivatives.
Journal ArticleDOI
Accessing the CpArNi(I) Synthon: Reactions with N-Heterocyclic Carbenes, TEMPO, Sulfur, and Selenium
Uttam Chakraborty,Franziska Urban,Bernd Mühldorf,Christophe Rebreyend,Bas de Bruin,Niels J. C. van Velzen,Sjoerd Harder,Robert Wolf +7 more
TL;DR: In this article, a reactive CpArNiI surrogate (CpAr = C5(C6H4-4-Et)5) is accessible via the reduction of the dimer with two equivalents of KC8.
Journal ArticleDOI
The synthesis and structure of a carbene-stabilized iminocarboranyl-boron(I) compound
TL;DR: A carbene-stabilized iminocarboranylboron(I) compound has been synthesized and structurally characterized and demonstrates that imines play a similar role to that of carbenes in the stabilization of low valent boron compounds.
Journal ArticleDOI
Facile Formation of Homoleptic Au(III) Trications via Simultaneous Oxidation and Ligand Delivery from [PhI(pyridine)2]2+
Robert Corbo,Thomas P. Pell,Bradley D. Stringer,Conor F. Hogan,David J. D. Wilson,Peter J. Barnard,Jason L. Dutton +6 more
TL;DR: The first examples of Au( III) tricationic complexes bound only by neutral monodentate ligands, which are a new class of gold reagents, show intriguing reactivity with water, yielding dinuclear oxo-bridged and rare terminal Au(III)-OH complexes.