Highly Active Molybdenum−Alkylidyne Catalysts for Alkyne Metathesis:  Synthesis from the Nitrides by Metathesis with Alkynes

2006 ◽  
Vol 128 (30) ◽  
pp. 9614-9615 ◽  
Author(s):  
Robyn L. Gdula ◽  
Marc J. A. Johnson
Keyword(s):  
Alkyne Metathesis ◽  
Highly Active

A Highly Active, Heterogeneous Catalyst for Alkyne Metathesis

2006 ◽  
Vol 118 (4) ◽  
pp. 599-602 ◽  
Author(s):  
Haim Weissman ◽  
Kyle N. Plunkett ◽  
Jeffrey S. Moore
Keyword(s):  
Heterogeneous Catalyst ◽  
Alkyne Metathesis ◽  
Highly Active

scholarly journals Recent advances in the development of alkyne metathesis catalysts

2011 ◽  
Vol 7 ◽  
pp. 82-93 ◽  
Author(s):  
Xian Wu ◽  
Matthias Tamm
Keyword(s):  
Alkyne Metathesis ◽  
Highly Active ◽  
Recent Advances ◽  
Metathesis Reactions ◽  
Metathesis Catalysts ◽  
And Tungsten

The number of well-defined molybdenum and tungsten alkylidyne complexes that are able to catalyze alkyne metathesis reactions efficiently has been significantly expanded in recent years.The latest developments in this field featuring highly active imidazolin-2-iminato- and silanolate–alkylidyne complexes are outlined in this review.

Arylene–ethynylene macrocycles: Privileged shape-persistent building blocks for organic materials

2012 ◽  
Vol 84 (4) ◽  
pp. 869-878 ◽  
Author(s):  
Dustin E. Gross ◽  
Ling Zang ◽  
Jeffrey S. Moore
Keyword(s):  
Functional Group ◽  
Organic Materials ◽  
Building Blocks ◽  
Alkyne Metathesis ◽  
Reaction Conditions ◽  
Traditional Methods ◽  
Dynamic Covalent Chemistry ◽  
Highly Active ◽  
Recent Advances ◽  
Metathesis Catalyst

This report details the advances in synthetic strategies toward arylene–ethynylene macrocycles (AEMs). After a brief description of traditional methods, we summarize recent advances based on dynamic covalent chemistry (DCC) whereby a highly active and functional group tolerant alkyne metathesis catalyst yields scalable quantities of AEMs under thermodynamic controlled reaction conditions.

scholarly journals Efficient catalytic alkyne metathesis with a fluoroalkoxy-supported ditungsten(III) complex

2018 ◽  
Vol 14 ◽  
pp. 2425-2434 ◽  
Author(s):  
Henrike Ehrhorn ◽  
Janin Schlösser ◽  
Dirk Bockfeld ◽  
Matthias Tamm
Keyword(s):  
Metal Complexes ◽  
The Self ◽  
Significant Activity ◽  
Terminal Alkynes ◽  
Alkyne Metathesis ◽  
Cross Metathesis ◽  
Tungsten Complexes ◽  
Highly Active ◽  
Metathesis Catalysts ◽  
And Tungsten

The molybdenum and tungsten complexes M2(OR)6 (Mo2F6, M = Mo, R = C(CF3)2Me; W2F3, M = W, R = OC(CF3)Me2) were synthesized as bimetallic congeners of the highly active alkyne metathesis catalysts [MesC≡M{OC(CF3) n Me3− n }] (MoF6, M = Mo, n = 2; WF3, M = W, n = 1; Mes = 2,4,6-trimethylphenyl). The corresponding benzylidyne complex [PhC≡W{OC(CF3)Me2}] (W Ph F3) was prepared by cleaving the W≡W bond in W2F3 with 1-phenyl-1-propyne. The catalytic alkyne metathesis activity of these metal complexes was determined in the self-metathesis, ring-closing alkyne metathesis and cross-metathesis of internal and terminal alkynes, revealing an almost equally high metathesis activity for the bimetallic tungsten complex W2F3 and the alkylidyne complex W Ph F3. In contrast, Mo2F6 displayed no significant activity in alkyne metathesis.

A Highly Active, Heterogeneous Catalyst for Alkyne Metathesis

2006 ◽  
Vol 45 (4) ◽  
pp. 585-588 ◽  
Author(s):  
Haim Weissman ◽  
Kyle N. Plunkett ◽  
Jeffrey S. Moore
Keyword(s):  
Heterogeneous Catalyst ◽  
Alkyne Metathesis ◽  
Highly Active
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