Multinuclear Copper Hydride Complexes Supported by Polyphosphine Ligands

2020 ◽  
Vol 2020 (23) ◽  
pp. 2211-2226 ◽  
Author(s):  
Takayuki Nakajima ◽  
Kanako Nakamae ◽  
Yasuyuki Ura ◽  
Tomoaki Tanase
Keyword(s):  
Copper Hydride ◽  
Hydride Complexes

Tri- and Tetranuclear Copper Hydride Complexes Supported by Tetradentate Phosphine Ligands

2018 ◽  
Vol 57 (17) ◽  
pp. 11005-11018 ◽  
Author(s):  
Takayuki Nakajima ◽  
Yoshia Kamiryo ◽  
Kanae Hachiken ◽  
Kanako Nakamae ◽  
Yasuyuki Ura ◽  
...  
Keyword(s):  
Phosphine Ligands ◽  
Copper Hydride ◽  
Hydride Complexes

Selective Reduction of CO2 to a Formate Equivalent with Heterobimetallic Gold- - -Copper Hydride Complexes

2017 ◽  
Vol 129 (47) ◽  
pp. 15323-15326 ◽  
Author(s):  
Alexandra Hicken ◽  
Andrew J. P. White ◽  
Mark R. Crimmin
Keyword(s):  
Selective Reduction ◽  
Copper Hydride ◽  
Hydride Complexes ◽  
Reduction Of Co2

scholarly journals Copper–Ligand Cooperativity in H2 Activation Enables the Synthesis of Copper Hydride Complexes

2021 ◽  
Author(s):  
Alicia Aloisi ◽  
Etienne Crochet ◽  
Emmanuel Nicolas ◽  
Jean-Claude Berthet ◽  
Camille Lescot ◽  
...  
Keyword(s):  
Copper Hydride ◽  
Hydride Complexes ◽  
Hydride Complex

Copper(I) complexes of a new participative triphosphane ligand (<b>2<sup>H</sup></b>) have been prepared and structurally characterized, in particular [Cu(<b>2<sup>H</sup></b>)I] and [Cu(<b>2</b>)]<sub>2</sub>. Hydrogenation of the latter species afforded the trimetallic hydride species [Cu<sub>3</sub>(<b>2</b>)<sub>2</sub>(µ-H)] or in the presence of BEt<sub>3</sub>, [Cu(<b>2<sup>H</sup></b>)(HBEt<sub>3</sub>)]. Their formation evidences transient formation of [Cu(<b>2<sup>H</sup></b>)H] formed by hydrogenolysis of the Cu‒<br>N bond of [Cu(<b>2</b>)]<sub>2</sub>. [Cu(<b>2<sup>H</sup></b>)(HBEt<sub>3</sub>)] behaves like a hydride complex and inserts CO<sub>2</sub> to yield the formate product [Cu(<b>2<sup>H</sup></b>)(O<sub>2</sub>CH)].<br>

scholarly journals Copper–Ligand Cooperativity in H2 Activation Enables the Synthesis of Copper Hydride Complexes

2021 ◽  
Author(s):  
Alicia Aloisi ◽  
Etienne Crochet ◽  
Emmanuel Nicolas ◽  
Jean-Claude Berthet ◽  
Camille Lescot ◽  
...  
Keyword(s):  
Copper Hydride ◽  
Hydride Complexes ◽  
Hydride Complex

Copper(I) complexes of a new participative triphosphane ligand (<b>2<sup>H</sup></b>) have been prepared and structurally characterized, in particular [Cu(<b>2<sup>H</sup></b>)I] and [Cu(<b>2</b>)]<sub>2</sub>. Hydrogenation of the latter species afforded the trimetallic hydride species [Cu<sub>3</sub>(<b>2</b>)<sub>2</sub>(µ-H)] or in the presence of BEt<sub>3</sub>, [Cu(<b>2<sup>H</sup></b>)(HBEt<sub>3</sub>)]. Their formation evidences transient formation of [Cu(<b>2<sup>H</sup></b>)H] formed by hydrogenolysis of the Cu‒<br>N bond of [Cu(<b>2</b>)]<sub>2</sub>. [Cu(<b>2<sup>H</sup></b>)(HBEt<sub>3</sub>)] behaves like a hydride complex and inserts CO<sub>2</sub> to yield the formate product [Cu(<b>2<sup>H</sup></b>)(O<sub>2</sub>CH)].<br>

scholarly journals Front Cover: Multinuclear Copper Hydride Complexes Supported by Polyphosphine Ligands (Eur. J. Inorg. Chem. 23/2020)

2020 ◽  
Vol 2020 (23) ◽  
pp. 2210-2210
Author(s):  
Takayuki Nakajima ◽  
Kanako Nakamae ◽  
Yasuyuki Ura ◽  
Tomoaki Tanase
Keyword(s):  
Copper Hydride ◽  
Front Cover ◽  
Hydride Complexes

scholarly journals Engaging Aldehydes in CuH-Catalyzed Reductive Coupling Reactions: Stereoselective Allylation from 1,3-Diene Pronucleophiles

2019 ◽  
Author(s):  
Chengxi Li ◽  
Kwangmin Shin ◽  
Richard Liu ◽  
Stephen L. Buchwald
Keyword(s):  
Relative Concentration ◽  
Attractive Alternative ◽  
Copper Hydride ◽  
Coupling Reactions ◽  
Reductive Coupling ◽  
Concentration Effects ◽  
Organometallic Reagents ◽  
Hydride Complexes ◽  
Stereoselective Addition ◽  
Intrinsic Reactivity

Recently, CuH-catalyzed reductive coupling processes involving carbonyl compounds and imines has become an attractive alternative to traditional methods for stereoselective addition to carbonyls due to the ability to use readily accessible and stable olefin-derived pronucleophiles as surrogates for organometallic reagents. However, the inability to use aldehydes, which traditionally reduce too rapidly in the presence of copper hydride complexes to be viable substrates, has been a major limitation. We show that by exploiting relative concentration effects through slow addition, we can invert this intrinsic reactivity and achieve the reductive coupling of 1,3-dienes with aldehydes. Using this method, both aromatic and aliphatic aldehydes can be transformed to valuable products with high levels of diastereo- and enantioselectivity and in the presence of many useful functional groups. Furthermore, using a combination of theoretical (DFT) and experimental methods, important mechanistic features of this reaction related to stereo- and chemoselectivity were uncovered.

scholarly journals Copper–Ligand Cooperativity in H2 Activation Enables the Synthesis of Copper Hydride Complexes

2021 ◽  
Author(s):  
Alicia Aloisi ◽  
Étienne Crochet ◽  
Emmanuel Nicolas ◽  
Jean-Claude Berthet ◽  
Camille Lescot ◽  
...  
Keyword(s):  
Copper Hydride ◽  
Hydride Complexes
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