ChemInform Abstract: Recent Advances in the Development of Chiral Metal Catalysts for the Asymmetric Hydrogenation of Ketones

ChemInform ◽  
2015 ◽  
Vol 46 (18) ◽  
pp. no-no
Author(s):  
Jian-Hua Xie ◽  
Deng-Hui Bao ◽  
Qi-Lin Zhou
Keyword(s):  
Asymmetric Hydrogenation ◽  
Metal Catalysts ◽  
Recent Advances

Recent Advances in the Development of Chiral Metal Catalysts for the Asymmetric Hydrogenation of Ketones

Synthesis ◽  
2014 ◽  
Vol 47 (04) ◽  
pp. 460-471 ◽  
Author(s):  
Jian-Hua Xie ◽  
Deng-Hui Bao ◽  
Qi-Lin Zhou
Keyword(s):  
Asymmetric Hydrogenation ◽  
Metal Catalysts ◽  
Recent Advances

ChemInform Abstract: Recent Advances on the Design of Group VIII Base-Metal Catalysts with Encapsulated Structures

ChemInform ◽  
2015 ◽  
Vol 46 (39) ◽  
pp. no-no
Author(s):  
Hao Tian ◽  
Xinyu Li ◽  
Liang Zeng ◽  
Jinlong Gong
Keyword(s):  
Base Metal ◽  
Metal Catalysts ◽  
Group Viii ◽  
Recent Advances ◽  
Encapsulated Structures

scholarly journals Direct Transamidation Reactions: Mechanism and Recent Advances

Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2382 ◽  
Author(s):  
Paola Acosta-Guzmán ◽  
Alejandra Mateus-Gómez ◽  
Diego Gamba-Sánchez
Keyword(s):  
Carboxylic Acid ◽  
Chemical Industry ◽  
Metal Catalysts ◽  
Direct Reaction ◽  
Valuable Alternative ◽  
Recent Advances ◽  
Other Substances ◽  
Recent Developments ◽  
Nitrogen Nucleophiles ◽  
Reactions Mechanism

Amides are undeniably some of the most important compounds in Nature and the chemical industry, being present in biomolecules, materials, pharmaceuticals and many other substances. Unfortunately, the traditional synthesis of amides suffers from some important drawbacks, principally the use of stoichiometric activators or the need to use highly reactive carboxylic acid derivatives. In recent years, the transamidation reaction has emerged as a valuable alternative to prepare amides. The reactivity of amides makes their direct reaction with nitrogen nucleophiles difficult; thus, the direct transamidation reaction needs a catalyst in order to activate the amide moiety and to promote the completion of the reaction because equilibrium is established. In this review, we present research on direct transamidation reactions ranging from studies of the mechanism to the recent developments of more applicable and versatile methodologies, emphasizing those reactions involving activation with metal catalysts.

Directing-Group-Assisted Transition-Metal-Catalyzed Direct C–H Oxidative Annulation of Arenes with Alkynes for Facile Construction of Various Oxygen Heterocycles

Synthesis ◽  
2020 ◽  
Vol 52 (07) ◽  
pp. 993-1006 ◽  
Author(s):  
Guanghua Kuang ◽  
Guangyuan Liu ◽  
Xingxing Zhang ◽  
Naihao Lu ◽  
Yiyuan Peng ◽  
...  
Keyword(s):  
Transition Metal ◽  
Noble Metals ◽  
Metal Catalysts ◽  
Transition Metal Catalysts ◽  
Research Papers ◽  
Recent Advances ◽  
Oxygen Heterocycles ◽  
Directing Group ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

The most recent advances in the construction of oxygen heterocycles by the directing-group-assisted transition-metal-catalyzed direct oxidative annulation of arenes with diverse alkynes are summarized in this review. More than 140 recent research papers and many closely related reviews are referenced in this paper. Nine different oxygen heterocycles frameworks are discussed. Several traditional transition-metal catalysts as well as some classical non-noble metals are utilized to promote the annulation. Three plausible controlling models are disclosed to clarify the excellent regioselectivity outcomes achieved in case of unsymmetrical alkyne substrates.1 Introduction2 Coumarins3 I socoumarins and Their Analogues4 2-Pyrones and Their Analogues5 Chromones and Chroman-4-ones6 Chromenes and Isochromenes7 Fused Polycyclic Oxygen Heteroaromatics8 Benzofurans, Dihydrobenzofurans, and Furans9 Phthalides and Benzofuranones10 Benzoxepines11 Conclusion

scholarly journals Recent Advances in Supported Metal Catalysts for Syngas Production from Methane

2018 ◽  
Vol 2 (1) ◽  
pp. 9 ◽  
Author(s):  
Mohanned Mohamedali ◽  
Amr Henni ◽  
Hussameldin Ibrahim
Keyword(s):  
Metal Catalysts ◽  
Supported Metal Catalysts ◽  
Syngas Production ◽  
Recent Advances ◽  
Supported Metal

Recent advances in metal catalysts with hybrid ligands

2011 ◽  
Vol 255 (17-18) ◽  
pp. 1991-2024 ◽  
Author(s):  
Wen-Hua Zhang ◽  
Sheau Wei Chien ◽  
T.S. Andy Hor
Keyword(s):  
Metal Catalysts ◽  
Recent Advances ◽  
Hybrid Ligands
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