Preparation of Benzyne Complexes of Group 10 Metals by Intramolecular Suzuki Coupling ofortho-Metalated Phenylboronic Esters:  Molecular Structure of the First Benzyne-Palladium(0) Complex

2002 ◽  
Vol 124 (28) ◽  
pp. 8348-8360 ◽  
Author(s):  
Mikael Retbøll ◽  
Alison J. Edwards ◽  
A. David Rae ◽  
Anthony C. Willis ◽  
Martin A. Bennett ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Suzuki Coupling ◽  
Group 10 ◽  
Benzyne Complexes ◽  
Group 10 Metals

Zero-valent ML2 complexes of group 10 metals supported by terphenyl phosphanes

2021 ◽  
Author(s):  
M. Trinidad Martín ◽  
Mario Marín ◽  
Raquel J. Rama ◽  
Eleuterio Alvarez González ◽  
Celia Maya ◽  
...  
Keyword(s):  
Coordination Numbers ◽  
Group 10 ◽  
Group 10 Metals

Bulky terphenyl phosphane ligands PMe2Ar’ (Ar’ = terphenyl group) facilitate the isolation of zero-valent bis-phosphane complexes of nickel, palladium and platinum. The former show coordination numbers greater than two in...

scholarly journals DFT-Assisted Design and Evaluation of Bifunctional Amine/Pyridine-Oxazoline Metal Catalysts for Additions of Ketones to Unactivated Alkenes and Alkynes

Synthesis ◽  
2018 ◽  
Vol 51 (02) ◽  
pp. 450-462 ◽  
Author(s):  
Chris Dockendorff ◽  
Eric Greve ◽  
Jacob Porter
Keyword(s):  
Density Functional ◽  
Bond Formation ◽  
Bifunctional Catalyst ◽  
Catalyst Design ◽  
Epoxide Ring ◽  
Nmr Studies ◽  
Acidic Group ◽  
Direct Addition ◽  
Group 10 ◽  
Group 10 Metals

Bifunctional catalyst systems for the direct addition of ­ketones to unactivated alkenes/alkynes were designed and modeled by density functional theory (DFT). The designed catalysts possess bidentate ligands suitable for binding of pi-acidic group 10 metals capable of activating alkenes/alkynes, and a tethered organocatalyst amine to ­activate the ketone via formation of a nucleophilic enamine intermediate. The structures of the designed catalysts before and after C–C bond formation were optimized using DFT, and reaction steps involving group 10 metals were predicted to be significantly exergonic. A novel oxazoline precatalyst with a tethered amine separated by a meta-substituted benzene spacer was synthesized via a 10-step sequence that ­includes a key regioselective epoxide ring-opening step. It was combined with group 10 metal salts, including cationic Pd(II) and Pt(II), and screened for the direct addition of ketones to several alkenes and an ­internal alkyne. 1H NMR studies suggest that catalyst-catalyst inter­actions with this system via amine–metal coordination may preclude the desired addition reactions. The catalyst design approach disclosed here, and the promising calculations obtained with square planar group 10 metals, light a path for the discovery of novel bifunctional catalysts for C–C bond formation.

ChemInform Abstract: Catalytic Addition of Simple Alkenes to Carbonyl Compounds by Use of Group 10 Metals

ChemInform ◽  
2010 ◽  
Vol 41 (2) ◽  
Author(s):  
Chun-Yu Ho ◽  
Kristin D. Schleicher ◽  
Chun-Wa Chan ◽  
Timothy F. Jamison
Keyword(s):  
Carbonyl Compounds ◽  
Group 10 ◽  
Catalytic Addition ◽  
Group 10 Metals

Reactivity of an N-mesityl bis(phosphinimino)methane with group 10 metals

Polyhedron ◽  
2007 ◽  
Vol 26 (6) ◽  
pp. 1245-1250 ◽  
Author(s):  
Michael S. Hill ◽  
Peter B. Hitchcock
Keyword(s):  
Group 10 ◽  
Group 10 Metals
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