scholarly journals Olefin metathesis in air

2015 ◽  
Vol 11 ◽  
pp. 2038-2056 ◽  
Author(s):  
Lorenzo Piola ◽  
Fady Nahra ◽  
Steven P Nolan
Keyword(s):  
Transition Metal ◽  
Olefin Metathesis ◽  
Functional Group ◽  
High Oxidation State ◽  
Catalytic Systems ◽  
Metal Centers ◽  
Early Transition Metal ◽  
Significant Interest ◽  
High Oxidation ◽  
Metathesis Catalysts

Since the discovery and now widespread use of olefin metathesis, the evolution of metathesis catalysts towards air stability has become an area of significant interest. In this fascinating area of study, beginning with early systems making use of high oxidation state early transition metal centers that required strict exclusion of water and air, advances have been made to render catalysts more stable and yet more functional group tolerant. This review summarizes the major developments concerning catalytic systems directed towards water and air tolerance.

Catalytic synthesis of amines and N-containing heterocycles: Amidate complexes for selective C–N and C–C bond-forming reactions

2010 ◽  
Vol 82 (7) ◽  
pp. 1503-1515 ◽  
Author(s):  
Patrick Eisenberger ◽  
Laurel L. Schafer
Keyword(s):  
Transition Metal ◽  
Catalytic Synthesis ◽  
Transition Metal Catalysts ◽  
Selective Synthesis ◽  
High Oxidation State ◽  
Early Transition Metal ◽  
Bond Forming ◽  
Group 4 ◽  
High Oxidation ◽  
Bond Forming Reactions

The direct, 100 % atom-economic, and selective synthesis of amines is a challenging task that can be achieved, making use of early transition-metal catalysts. Here we report the synthesis and application of group 4 and 5 high-oxidation-state metal amidate complexes in catalytic C–N (hydroamination) and C–C (hydroaminoalkylation) bond-forming reactions to access substituted amines.

scholarly journals Iodonium-Catalyzed Carbonyl–Olefin Metathesis Reactions

Synlett ◽  
2019 ◽  
Vol 30 (17) ◽  
pp. 1966-1970 ◽  
Author(s):  
Giulia Oss ◽  
Thanh Vinh Nguyen
Keyword(s):  
Transition Metal ◽  
Organic Compounds ◽  
Organic Synthesis ◽  
Olefin Metathesis ◽  
Lewis Acids ◽  
Functional Group ◽  
Iodine Monochloride ◽  
Metathesis Reaction ◽  
Reaction Conditions ◽  
Recent Developments

The carbonyl–olefin metathesis reaction has become increasingly important in organic synthesis due to its versatility in functional group interconversion chemistry. Recent developments in the field have identified a number of transition-metal and organic Lewis acids as effective catalysts for this reaction. Herein, we report the use of simple organic compounds such as N-iodosuccinimide or iodine monochloride to catalyze the carbonyl–olefin metathesis process under mild reaction conditions. This work broadens the scope of this chemical transformation to include iodonium sources as simple and practical catalysts.

Nature of the Transition Metal–Carbene Bond in Grubbs Olefin Metathesis Catalysts

2011 ◽  
Vol 30 (13) ◽  
pp. 3522-3529 ◽  
Author(s):  
Giovanni Occhipinti ◽  
Vidar R. Jensen
Keyword(s):  
Transition Metal ◽  
Olefin Metathesis ◽  
Metathesis Catalysts

Ozonolysis for the preparation of high-oxidation state transition metal complexes, and the X-ray crystal structure of Co(py)2(OAc)2(H2O)2

Polyhedron ◽  
2004 ◽  
Vol 23 (17) ◽  
pp. 2631-2636 ◽  
Author(s):  
Alan Bailey ◽  
William P. Griffith ◽  
David W.C. Leung ◽  
Andrew J.P. White ◽  
David J. Williams
Keyword(s):  
Crystal Structure ◽  
Transition Metal ◽  
Metal Complexes ◽  
Oxidation State ◽  
Transition Metal Complexes ◽  
State Transition ◽  
High Oxidation State ◽  
X Ray ◽  
High Oxidation

Beyond Oxides: Nitride as a Ligand in a Neutral Ir IX NO 3 Molecule Bearing a Transition Metal at High Oxidation State

2019 ◽  
Vol 25 (44) ◽  
pp. 10290-10293 ◽  
Author(s):  
Łukasz Wolański ◽  
Mateusz Domański ◽  
Wojciech Grochala ◽  
Paweł Szarek
Keyword(s):  
Transition Metal ◽  
Oxidation State ◽  
High Oxidation State ◽  
High Oxidation
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