ChemInform Abstract: Phosphine Ligands. Part 7. 4,5-Bis(diphenylphosphino)acridine: A New Type of Tridentate Phosphorus-Nitrogen-Phosphorus Ligands.

ChemInform ◽  
2010 ◽  
Vol 29 (19) ◽  
pp. no-no
Author(s):  
S. HILLEBRAND ◽  
B. BARTKOWSKA ◽  
J. BRUCKMANN ◽  
C. KRUEGER ◽  
M. W. HAENEL
Keyword(s):  
Phosphine Ligands ◽  
Phosphorus Ligands ◽  
New Type ◽  
Nitrogen Phosphorus

4,5-bis(diphenylphosphino)acridine: A new type of tridentate phosphorus-nitrogen-phosphorus ligands

1998 ◽  
Vol 39 (8) ◽  
pp. 813-816 ◽  
Author(s):  
Stefan Hillebrand ◽  
Beata Bartkowska ◽  
Joachim Bruckmann ◽  
Carl Krüger ◽  
Matthias W. Haenel
Keyword(s):  
Phosphorus Ligands ◽  
New Type ◽  
Nitrogen Phosphorus

Developing chiral phosphorus ligands for asymmetric hydrogenations

2010 ◽  
Vol 82 (7) ◽  
pp. 1429-1441 ◽  
Author(s):  
Wei Li ◽  
Guohua Hou ◽  
Xianfeng Sun ◽  
Gao Shang ◽  
Weicheng Zhang ◽  
...  
Keyword(s):  
Phosphine Ligands ◽  
Chiral Ligands ◽  
Phosphorus Ligands ◽  
Keto Esters ◽  
Asymmetric Hydrogenations ◽  
Dehydroamino Acid

Chiral rigid and electron-donating phosphocyclic phosphine ligands and modular atropisomeric biaryl phosphine ligands were designed and synthesized. The performance of these chiral ligands in the asymmetric hydrogenations of prochiral dehydroamino acid derivatives, enamides, imines, keto esters, and ketones has been demonstrated to be excellent.

scholarly journals Complexes of the tripodal phosphine ligands PhSi(XPPh2)3(X = CH2, O): synthesis, structure and catalytic activity in the hydroboration of CO2

2016 ◽  
Vol 45 (37) ◽  
pp. 14774-14788 ◽  
Author(s):  
Alicia Aloisi ◽  
Jean-Claude Berthet ◽  
Caroline Genre ◽  
Pierre Thuéry ◽  
Thibault Cantat
Keyword(s):  
Catalytic Activity ◽  
Coordination Chemistry ◽  
Electronic Properties ◽  
Phosphine Ligands ◽  
Phosphorus Ligands ◽  
The Impact

The coordination chemistry of Fe2+, Co2+and Cu+ions was explored with the ligands PhSi{CH2PPh2}3(1) and PhSi{OPPh2}3(2), so as to evaluate the impact of the electronic properties of the tripodal phosphorus ligands on the structure and reactivity of the corresponding complexes.

A Study of the Heck Reaction in Non-Polar Hydrocarbon Solvents and in Supercritical Carbon Dioxide

2007 ◽  
Vol 60 (8) ◽  
pp. 566 ◽  
Author(s):  
Jin-Kyun Lee ◽  
Rachel M. Williamson ◽  
Andrew B. Holmes ◽  
Edward J. Bush ◽  
Ian F. McConvey
Keyword(s):  
Butyl Acrylate ◽  
Heck Reaction ◽  
Supercritical Co2 ◽  
Phosphine Ligands ◽  
Triphenyl Phosphite ◽  
Heck Reactions ◽  
Polar Solvents ◽  
Phosphorus Ligands ◽  
Hydrocarbon Solvents ◽  
Sterically Demanding

The effects of electronic and steric properties of phosphorus ligands on Heck reactions in supercritical CO2 and non-polar hydrocarbon solvents were studied. In Heck reactions between iodobenzene and butyl acrylate, higher yields were obtained with less electron-rich phosphine ligands. This trend was also observed with the electron-poor triphenyl phosphite. A range of sterically demanding phosphites were then investigated. Biphenyl-containing phosphites 8 and 13 were found to be highly effective. In the Heck reaction between the less-reactive bromobenzene and butyl acrylate, the bulky, electron-rich tri-tert-butylphosphine ligand produced the best yield. These results emphasize the importance of both electronic and steric properties of phosphorus ligands in the Heck reaction in non-polar solvents.

Rational design of sulfoxide–phosphine ligands for Pd-catalyzed enantioselective allylic alkylation reactions

2014 ◽  
Vol 50 (22) ◽  
pp. 2873-2875 ◽  
Author(s):  
Hong-Gang Cheng ◽  
Bin Feng ◽  
Li-Yan Chen ◽  
Wei Guo ◽  
Xiao-Ye Yu ◽  
...  
Keyword(s):  
Rational Design ◽  
Phosphine Ligands ◽  
Allylic Alkylation ◽  
Rational Combination ◽  
New Type ◽  
Alkylation Reactions ◽  
Privileged Scaffolds

A new type of chiral sulfoxide–phosphine ligands have been developed by a rational combination of two privileged scaffolds and successfully applied to Pd-catalyzed enantioselective allylic alkylation reactions.

scholarly journals Construction of heterometallic clusters with multiple uranium–metal bonds by using dianionic nitrogen–phosphorus ligands

2020 ◽  
Vol 11 (29) ◽  
pp. 7585-7592 ◽  
Author(s):  
Genfeng Feng ◽  
Karl N. McCabe ◽  
Shuao Wang ◽  
Laurent Maron ◽  
Congqing Zhu
Keyword(s):  
Transition Metals ◽  
Phosphorus Ligands ◽  
Heterometallic Clusters ◽  
Uranium Metal ◽  
Metal Bond ◽  
Metal Metal ◽  
Metal Bonds ◽  
Nitrogen Phosphorus

Compared with the prevalent metal–metal bond in transition metals, examples of the actinide–metal bond in heterometallic clusters are rare.

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