Manganese and Iron PCP Pincer Complexes – The Influence of Sterics on Structure and Reactivity

2021 ◽  
Author(s):  
Wolfgang Eder ◽  
Daniel Himmelbauer ◽  
Berthold Stöger ◽  
Luis F. Veiros ◽  
Marc Pignitter ◽  
...  
Keyword(s):  
Oxidative Addition ◽  
Pincer Complexes ◽  
Pcp Pincer

The syntheses of various manganese and iron PCP pincer complexes via a solvothermal oxidative addition methodology is described. Upon reacting [Mn2(CO)10] with the ligands (P(C-Br)PCH2-iPr) (1a) and (P(C-Br)PO-iPr) (1b), Mn(I)...

scholarly journals H/D Exchange Under Mild Conditions in Arenes and Unactivated Alkanes with C6D6 and D2O Using Rigid, Electron-rich Iridium PCP Pincer Complexes

2020 ◽  
Author(s):  
Joel D. Smith ◽  
George Durrant ◽  
Daniel Ess ◽  
Warren Piers
Keyword(s):  
Hydrogen Isotope ◽  
Isotope Exchange ◽  
Room Temperature ◽  
Pincer Complexes ◽  
Synthesis And Characterization ◽  
Hydrogen Isotope Exchange ◽  
Mild Conditions ◽  
Highly Active ◽  
Pcp Pincer

<div>The synthesis and characterization of an iridium polyhydride complex (Ir-H4)</div><div>supported by an electron-rich PCP framework is described. This complex readily loses molecular</div><div>hydrogen allowing for rapid room temperature hydrogen isotope exchange (HIE) at the hydridic</div><div>positions and the α-C-H site of the ligand with deuterated solvents such as benzene-d6, toluene-d8</div><div>and THF-d8. The removal of 1-2 equivalents of molecular H2 forms unsaturated iridium carbene</div><div>trihydride (Ir-H3) or monohydride (Ir-H) compounds that are able to create further unsaturation</div><div>by reversibly transferring a hydride to the ligand carbene carbon. These species are highly active</div><div>hydrogen isotope exchange (HIE) catalysts using C6D6 or D2O as deuterium sources for the</div><div>deuteration of a variety of substrates. By modifying conditions to influence the Ir-Hn speciation,</div><div>deuteration levels can range from near exhaustive to selective only for sterically accessible sites.</div><div>Preparative level deuterations of select substrates were performed allowing for procurement of</div><div>>95% deuterated compounds in excellent isolated yields; the catalyst can be regenerated by</div><div>treatment of residues with H2 and is still active for further reactions.</div>

ChemInform Abstract: Palladium Bis(phosphinite) “PCP”-Pincer Complexes and Their Application as Catalysts in the Suzuki Reaction.

ChemInform ◽  
2001 ◽  
Vol 32 (2) ◽  
pp. no-no
Author(s):  
Robin B. Bedford ◽  
Sylvia M. Draper ◽  
P. Noelle Scully ◽  
Samantha L. Welch
Keyword(s):  
Suzuki Reaction ◽  
Pincer Complexes ◽  
Pcp Pincer

Isolation and crystallographic characterization of solvate- and anion-stabilized PCP pincer complexes of palladium(II)

2008 ◽  
Vol 693 (8-9) ◽  
pp. 1628-1635 ◽  
Author(s):  
Kian Eang Neo ◽  
Han Vinh Huynh ◽  
Lip Lin Koh ◽  
William Henderson ◽  
T.S. Andy Hor
Keyword(s):  
Pincer Complexes ◽  
Pcp Pincer

m-Terphenyl Anchored Palladium Diphosphinite PCP-Pincer Complexes That Promote the Suzuki−Miyaura Reaction Under Mild Conditions

2009 ◽  
Vol 28 (1) ◽  
pp. 188-196 ◽  
Author(s):  
Mark C. Lipke ◽  
Robert A. Woloszynek ◽  
Liqing Ma ◽  
John D. Protasiewicz
Keyword(s):  
Pincer Complexes ◽  
Mild Conditions ◽  
Pcp Pincer

Selective C−C vs C−H Bond Activation by Rhodium(I) PCP Pincer Complexes. A Computational Study

2000 ◽  
Vol 122 (29) ◽  
pp. 7095-7104 ◽  
Author(s):  
Andreas Sundermann ◽  
Olivier Uzan ◽  
David Milstein ◽  
Jan M. L. Martin
Keyword(s):  
Bond Activation ◽  
Computational Study ◽  
Pincer Complexes ◽  
Pcp Pincer

ChemInform Abstract: Co(II) PCP Pincer Complexes as Catalysts for the Alkylation of Aromatic Amines with Primary Alcohols.

ChemInform ◽  
2016 ◽  
Vol 47 (48) ◽  
Author(s):  
Matthias Mastalir ◽  
Gerald Tomsu ◽  
Ernst Pittenauer ◽  
Guenter Allmaier ◽  
Karl Kirchner
Keyword(s):  
Aromatic Amines ◽  
Pincer Complexes ◽  
Primary Alcohols ◽  
Pcp Pincer

Reduced State of Iridium PCP Pincer Complexes in Electrochemical CO2 Hydrogenation

ACS Catalysis ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 3834-3839 ◽  
Author(s):  
Irina Osadchuk ◽  
Toomas Tamm ◽  
Mårten S. G. Ahlquist
Keyword(s):  
Co2 Hydrogenation ◽  
Pincer Complexes ◽  
Pcp Pincer ◽  
Reduced State
Sign in / Sign up

Export Citation Format

Share Document