Post‐Synthetic Modification of Oligonucleotides Through Oxidative Amination of 4‐Thio‐2′‐Deoxyuridine

2021 ◽  
Vol 1 (10) ◽  
Author(s):  
Jingyi Wang ◽  
Jiachen Shang ◽  
Yu Xiang ◽  
Aijun Tong
Keyword(s):  
Oxidative Amination

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>

The First Rhodium-Catalyzed Anti-Markovnikov Hydroamination: Studies on Hydroamination and Oxidative Amination of Aromatic Olefins

1999 ◽  
Vol 5 (4) ◽  
pp. 1306-1319 ◽  
Author(s):  
M. Beller ◽  
H. Trauthwein ◽  
M. Eichberger ◽  
C. Breindl ◽  
J. Herwig ◽  
...  
Keyword(s):  
Oxidative Amination

Direct and metal-free oxidative amination of sp3 C–H bonds for the construction of 2-hetarylquinazolin-4(3H)-ones

2016 ◽  
Vol 3 (9) ◽  
pp. 1096-1099 ◽  
Author(s):  
Huanhuan Liu ◽  
Tianran Zhai ◽  
Shiteng Ding ◽  
Yalei Hou ◽  
Xiangyu Zhang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Functional Group ◽  
New Method ◽  
Oxidative Amination ◽  
Metal Free ◽  
Mild Conditions

New method for synthesis of 2-hetarylquinazolin-4(3H)-ones from 2-aminobenzamides and (2-azaaryl)methanes under transition-metal free conditions, featuring a wide substrate scope with a broad range of functional group tolerance under mild conditions.

ChemInform Abstract: Copper-Catalyzed Intramolecular Oxidative Amination of Enaminone C-H Bond for the Synthesis of Imidazo[1,2-a]pyridines.

ChemInform ◽  
2016 ◽  
Vol 47 (43) ◽  
Author(s):  
Jie-Ping Wan ◽  
Deqing Hu ◽  
Ying Liu ◽  
Luyao Li ◽  
Chengping Wen
Keyword(s):  
Oxidative Amination

Rhodium(II)-Catalyzed Oxidative Amination

ChemInform ◽  
2005 ◽  
Vol 36 (33) ◽  
Author(s):  
Christine G. Espino ◽  
Justin Du Bois
Keyword(s):  
Oxidative Amination

ChemInform Abstract: Cu/Fe Catalyzed Intermolecular Oxidative Amination of Benzylic C-H Bonds.

ChemInform ◽  
2016 ◽  
Vol 47 (36) ◽  
Author(s):  
Cong Liu ◽  
Qi Zhang ◽  
Hongbo Li ◽  
Shuangxi Guo ◽  
Bin Xiao ◽  
...  
Keyword(s):  
Oxidative Amination

Palladium-catalyzed regioselective oxidative amination of alkenes: an efficient route to the synthesis of pyrrolocoumarin and pyrroloquinolone derivatives

2010 ◽  
Vol 51 (29) ◽  
pp. 3807-3810 ◽  
Author(s):  
K.C. Majumdar ◽  
Srikanta Samanta ◽  
Raj Kumar Nandi ◽  
Buddhadeb Chattopadhyay
Keyword(s):  
Oxidative Amination ◽  
Palladium Catalyzed ◽  
Efficient Route

Double C–H amination by consecutive SET oxidations

2016 ◽  
Vol 52 (44) ◽  
pp. 7138-7141 ◽  
Author(s):  
Christopher J. Evoniuk ◽  
Sean P. Hill ◽  
Kenneth Hanson ◽  
Igor V. Alabugin
Keyword(s):  
New Method ◽  
Oxidative Amination ◽  
Oxidative Reaction

A new method for intramolecular C–H oxidative amination is based on a FeCl3-mediated oxidative reaction of anilines with activated sp3 C–H bonds.

ChemInform Abstract: A Metal-Free Oxidative Amination of Benzoxazoles with Primary Amines and Ammonia.

ChemInform ◽  
2012 ◽  
Vol 43 (17) ◽  
pp. no-no
Author(s):  
Ulrich Kloeckner ◽  
Nicole M. Weckenmann ◽  
Boris J. Nachtsheim
Keyword(s):  
Primary Amines ◽  
Oxidative Amination ◽  
Metal Free
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