Bidentate chelate compounds. 1. Pseudotetrahedral copper(II) complexes of heterocyclic secondary amines

1978 ◽  
Vol 17 (2) ◽  
pp. 270-275 ◽  
Author(s):  
Edward M. Gouge ◽  
John F. Geldard
Keyword(s):  
Secondary Amines ◽  
Bidentate Chelate ◽  
Chelate Compounds

Bidentate Chelate Compounds. I

1958 ◽  
Vol 80 (7) ◽  
pp. 1591-1592 ◽  
Author(s):  
Francis Lions ◽  
Kenneth V. Martin
Keyword(s):  
Bidentate Chelate ◽  
Chelate Compounds

Bidentate Chelate Compounds. II

1959 ◽  
Vol 81 (2) ◽  
pp. 311-314 ◽  
Author(s):  
Harold A. Goodwin ◽  
Francis Lions
Keyword(s):  
Bidentate Chelate ◽  
Chelate Compounds

Bidentate Chelate Compounds. III. Metal Complexes of Some Pyridyl-Imidazole Derivatives

1964 ◽  
Vol 3 (1) ◽  
pp. 110-114 ◽  
Author(s):  
Barry Chiswell ◽  
Francis Lions ◽  
Benjamin S. Morris
Keyword(s):  
Metal Complexes ◽  
Imidazole Derivatives ◽  
Bidentate Chelate ◽  
Chelate Compounds

Bidentate chelate compounds. 3. Cobalt(III) chemistry of 2,2'-dipyridylamine

1979 ◽  
Vol 18 (3) ◽  
pp. 664-669 ◽  
Author(s):  
W. Leo Johnson ◽  
John F. Geldard
Keyword(s):  
Bidentate Chelate ◽  
Chelate Compounds

Acceptorless amine dehydrogenation and transamination using Pd-doped layered double hydroxides

2018 ◽  
Author(s):  
Diana Ainembabazi ◽  
Nan An ◽  
Jinesh Manayil ◽  
Kare Wilson ◽  
Adam Lee ◽  
...  
Keyword(s):  
Layered Double Hydroxides ◽  
Oxidation States ◽  
Secondary Amines ◽  
Primary Amines ◽  
Acid Dissolution ◽  
Oxidative Amination ◽  
Strong Function ◽  
Excellent Activity ◽  
High Yields ◽  
Double Hydroxides

<div> <p>The synthesis, characterization, and activity of Pd-doped layered double hydroxides (Pd-LDHs) for for acceptorless amine dehydrogenation is reported. These multifunctional catalysts comprise Brønsted basic and Lewis acidic surface sites that stabilize Pd species in 0, 2+, and 4+ oxidation states. Pd speciation and corresponding cataytic performance is a strong function of metal loading. Excellent activity is observed for the oxidative transamination of primary amines and acceptorless dehydrogenation of secondary amines to secondary imines using a low Pd loading (0.5 mol%), without the need for oxidants. N-heterocycles, such as indoline, 1,2,3,4-tetrahydroquinoline, and piperidine, are dehydrogenated to the corresponding aromatics with high yields. The relative yields of secondary imines are proportional to the calculated free energy of reaction, while yields for oxidative amination correlate with the electrophilicity of primary imine intermediates. Reversible amine dehydrogenation and imine hydrogenation determine the relative imine:amine selectivity. Poisoning tests evidence that Pd-LDHs operate heterogeneously, with negligible metal leaching; catalysts can be regenerated by acid dissolution and re-precipitation.</p> </div> <br>

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