Dialkyl(1,3-diarylimidazolin-2-ylidenamino)phosphines: Strongly Electron-Donating, Buchwald-Type Phosphines

被引：26

作者：

Witteler, Tim ^{[1
]}

Darmandeh, Heidar ^{[1
]}

Mehlmann, Paul ^{[1
]}

Dielmann, Fabian ^{[1
]}

机构：

[1] Westfilische Wilhelms Univ Munster, Inst Anorgan & Analyt Chem, Correnstr 30, D-48149 Munster, Germany

来源：

ORGANOMETALLICS | 2018年 / 37卷 / 18期

关键词：

N-HETEROCYCLIC CARBENES; CROSS-COUPLING REACTIONS; GOLD CATALYSIS; ACCEPTOR PROPERTIES; LIGAND DESIGN; AMINATION; DIOXIDE; ADDUCTS;

D O I：

10.1021/acs.organomet.8b00439

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and properties of a series of strongly electron-donating, sterically demanding dialkyl(1,3-diarylimidazolin-2-ylidenamino)phosphines (IAPs) are reported. Determination of the TEP values shows that the bulky IAPs are better donor ligands than classical N-heterocyclic carbenes. The steric profiles of the IAPs in neutral and cationic gold(I) complexes were analyzed by X-ray diffraction studies and computational methods, revealing similar structural features to the Buchwald-type phosphines. The new phosphines were tested in the gold-catalyzed hydroamination of phenylacetylene with anilines.

引用

页码：3064 / 3072

页数：9

共 3 条

[1] Switching the Electron-Donating Ability of Phosphines through Proton-Responsive Imidazolin-2-ylidenamino Substituents
Mehlmann, Paul
Dielmann, Fabian
CHEMISTRY-A EUROPEAN JOURNAL, 2019, 25 (09) : 2352 - 2357
[2] Synthesis and characterization of strongly electron-donating bidentate phosphines containing imidazolin-2-ylidenamino substituents and their electron-rich nickel(0), palladium(II) and gold(I) chelate complexes
Wilm, Lukas F. B.
Mehlmann, Paul
Buss, Florenz
Dielmann, Fabian
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 2020, 909
[3] Strongly Electron-Donating Triazolylidene Ligands: Cationic Metal Carbonyl Complexes of 1-Methyl-1,2,3-triazole as Triazolium Surrogates
Canadas, Purificacion
Diaz, Jesus
Perez, Julio
Riera, Lucia
INORGANIC CHEMISTRY, 2022, 61 (03) : 1254 - 1258

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