Journal ArticleDOI
Reactions involving alkynes and tungsten-tungsten triple bonds supported by alkoxide ligands
Malcolm H. Chisholm,Brian K. Conroy,Bryan W. Eichhorn,Kirsten Folting,David M. Hoffman,John C. Huffman,Nancy S. Marchant +6 more
TLDR
In this article, Schrock et al. found evidence for equilibria involving alkyne adducts and alkylidyne species for certain combinations of R and R′.About:
This article is published in Polyhedron.The article was published on 1987-01-01. It has received 32 citations till now. The article focuses on the topics: Alkyne.read more
Citations
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Journal ArticleDOI
Alkyne metathesis on the rise.
TL;DR: The early years of alkyne metathesis were marked by a somewhat ironic state of affairs: the proposed mechanism was swiftly validated and more than one effective catalyst became available shortly after the discovery of this transformation; surprisingly, however, the impact on synthesis remained very limited for a long period of time.
Journal ArticleDOI
Alkyne Metathesis: Catalysts and Synthetic Applications
Wei Zhang,Jeffrey S. Moore +1 more
TL;DR: Alkyne metathesis has been studied extensively in the literature as mentioned in this paper, with an emphasis on comparing strengths and weaknesses of different types of catalysts, including two heterogeneous ones.
Journal ArticleDOI
The alkoxide ligand in olefin and acetylene metathesis reactions
TL;DR: In this paper, the use of alkoxides as ancillary ligands in the organometallic chemistry and catalysis of the early transition metals is reviewed, including acetylene metathesis, olefin metathes, ring-opening metatheses polymerization, and polymerization of alkynes.
Journal ArticleDOI
Optimized synthesis, structural investigations, ligand tuning and synthetic evaluation of silyloxy-based alkyne metathesis catalysts.
TL;DR: Structural and reactivity data suggest that this promising application profile results from a favorable match between the characteristics of the high-valent molybdenum center and the electronic and steric features of the chosen Ar(3)SiO groups, which ensures a well-balanced level of Lewis acidity at the central atom, which is critical for high activity.
Book ChapterDOI
Recent Advances in the Chemistry of Metal-Carbon Triple Bonds
Andreas Mayr,Hans Hoffmeister +1 more
TL;DR: The first transition-metal carbyne complexes were synthesized in Fischer's laboratory by the treatment of alkoxycarbene pentacarbonyl metal complexes of chromium, molybdenum, and tungsten with boron trihalides as mentioned in this paper.
References
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Journal ArticleDOI
Mononuclear and Polynuclear Chemistry of Rhenium (III): Its Pronounced Homophilicity
F. A. Cotton,N. F. Curtis,C. B. Harris,B. F. G. Johnson,Stephen J. Lippard,J. T. Mague,W. R. Robinson,J. S. Wood +7 more
TL;DR: Trivalent rhenium is strongly homophilic—that is, it tends to form bonds to other Re111 atoms—and it forms at least three different series of [ReX4]nn- complexes, some containing trinuclear clusters.
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Metal‐Carbon and Metal‐Metal Multiple Bonds as Ligands in Transition‐Metal Chemistry: The Isolobal Connection
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Metathesis of acetylenes by tungsten(VI)-alkylidyne complexes
Journal ArticleDOI
Metathesis of tungsten-tungsten triple bonds with acetylenes and nitriles to give alkylidyne and nitrido complexes
Journal ArticleDOI
Metal-Metal Bonds and Metal Carbon Bonds in the Chemistry of Molybdenum and Tungsten Alkoxides.
TL;DR: Alkoxide ligands may act as four or two electron donor ligands and may readily change between terminal and bridging sites as mentioned in this paper, which allows for the facile interconnversion of saturated and unsaturated metal centers.