scholarly journals Ultra-Small FeS2 Nanoparticles for Highly Efficient Chemoselective Transfer Hydrogenation of Nitroarenes

2021 ◽  
Author(s):  
Jamie Paul Southouse ◽  
Laura Lazzarini ◽  
A O Ibhadon ◽  
Maria Grazia Francesconi
Keyword(s):  
Hydrogen Transfer ◽  
Transfer Reaction ◽  
Catalytic Performance ◽  
Transfer Hydrogenation ◽  
Substituted Anilines ◽  
Hydrogen Transfer Reaction ◽  
Highly Efficient ◽  
Current Systems

Ultra-small FeS2 nanoparticles were prepared and used as catalysts in a hydrogen transfer reaction for the synthesis of substituted anilines. The catalytic performance is superior to current systems across all...

Microwave-Assisted Heterogeneous Transfer Hydrogenation of Ketones

2007 ◽  
Vol 124-126 ◽  
pp. 1785-1788 ◽  
Author(s):  
M.S. Sarkar ◽  
Myung Jong Jin
Keyword(s):  
Silica Gel ◽  
Hydrogen Transfer ◽  
Transfer Reaction ◽  
Transfer Hydrogenation ◽  
Efficient Catalyst ◽  
Efficient Procedure ◽  
Microwave Assisted ◽  
Hydrogen Transfer Reaction ◽  
Ru Complex

A first and efficient procedure has been developed for microwave-assisted transfer hydrogenation of ketones. Silica gel-supported ligand 2 has been prepared for the transfer hydrogenation. This immobilized ligand-Ru complex acted as an efficient catalyst for the hydrogen transfer reaction of ketones. The MW-assisted reactions using the supported ligand 2 could reach completion within 20~40 min.

Calorimetric study of the acidity of Y-zeolites treated with silicon tetrachloride

1988 ◽  
Vol 66 (4) ◽  
pp. 1013-1017 ◽  
Author(s):  
Zhi Cheng Shi ◽  
Aline Auroux ◽  
Younes Ben Taarit
Keyword(s):  
Sample Preparation ◽  
Hydrogen Transfer ◽  
Transfer Reaction ◽  
Catalytic Performance ◽  
Silicon Tetrachloride ◽  
Calorimetric Study ◽  
Acidic Properties ◽  
Ammonia Adsorption ◽  
Y Zeolites ◽  
Hydrogen Transfer Reaction

The acidity of synthetic HY samples dealuminated with silicon tetrachloride vapour at various temperatures is investigated using microcalorimetry. The work covers sample preparation, characterization, and acidic properties. The differential heats of ammonia adsorption versus coverage and the acidity spectra are described. The catalytic performance is measured in the hydrogen transfer reaction.

Transfer Hydrogenation of Imines with Ammonia-Borane: A Concerted Double-Hydrogen-Transfer Reaction

2010 ◽  
Vol 49 (11) ◽  
pp. 2058-2062 ◽  
Author(s):  
Xianghua Yang ◽  
Lili Zhao ◽  
Thomas Fox ◽  
Zhi-Xiang Wang ◽  
Heinz Berke
Keyword(s):  
Hydrogen Transfer ◽  
Transfer Reaction ◽  
Ammonia Borane ◽  
Transfer Hydrogenation ◽  
Hydrogen Transfer Reaction ◽  
Double Hydrogen

scholarly journals Synthesis and structures of ruthenium–NHC complexes and their catalysis in hydrogen transfer reaction

2015 ◽  
Vol 11 ◽  
pp. 1786-1795 ◽  
Author(s):  
Chao Chen ◽  
Chunxin Lu ◽  
Qing Zheng ◽  
Shengliang Ni ◽  
Min Zhang ◽  
...  
Keyword(s):  
Hydrogen Transfer ◽  
Transfer Reaction ◽  
Ruthenium Complexes ◽  
Octahedral Geometry ◽  
Molecular Structures ◽  
Transfer Hydrogenation ◽  
Acetonitrile Solution ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Transfer Reaction

Ruthenium complexes [Ru(L1)2(CH3CN)2](PF6)2 (1), [RuL1(CH3CN)4](PF6)2 (2) and [RuL2(CH3CN)3](PF6)2 (3) (L1= 3-methyl-1-(pyrimidine-2-yl)imidazolylidene, L2 = 1,3-bis(pyridin-2-ylmethyl)benzimidazolylidene) were obtained through a transmetallation reaction of the corresponding nickel–NHC complexes with [Ru(p-cymene)2Cl2]2 in refluxing acetonitrile solution. The crystal structures of three complexes determined by X-ray analyses show that the central Ru(II) atoms are coordinated by pyrimidine- or pyridine-functionalized N-heterocyclic carbene and acetonitrile ligands displaying the typical octahedral geometry. The reaction of [RuL1(CH3CN)4](PF6)2 with triphenylphosphine and 1,10-phenanthroline resulted in the substitution of one and two coordinated acetonitrile ligands and afforded [RuL1(PPh3)(CH3CN)3](PF6)2 (4) and [RuL1(phen)(CH3CN)2](PF6)2 (5), respectively. The molecular structures of the complexes 4 and 5 were also studied by X-ray diffraction analysis. These ruthenium complexes have proven to be efficient catalysts for transfer hydrogenation of various ketones.

Ruthenium(II)–carbonyl complexes containing two N-monodentate 1,8-naphthyridine ligands: active catalysis in transfer hydrogenation reactions

2018 ◽  
Vol 74 (11) ◽  
pp. 1547-1552
Author(s):  
Juana Guajardo ◽  
Andrés Ibañez ◽  
Veronique Guerchais ◽  
Andrés Vega ◽  
Sergio Moya ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Good Yield ◽  
Hydrogen Transfer ◽  
Transfer Reaction ◽  
Transfer Hydrogenation ◽  
Distorted Octahedron ◽  
High Yield ◽  
Carbonyl Complexes ◽  
Hydrogen Transfer Reaction ◽  
Hydrogenation Reactions

The reaction of 2-aminonicotinaldehyde with 2- or 4-methoxyacetophenone in basic media leads to the new ligands 2-(4-methoxyphenyl)-1,8-naphthyridine and 2-(2-methoxyphenyl)-1,8-naphthyridine, respectively, in high yield. The reaction of these naphthyridine derivatives with [RuCl2(CO)2] n leads to the respective complexes cis-dicarbonyldichloridobis[2-(4-methoxyphenyl)-1,8-naphthyridine-κN 8]ruthenium(II) and cis-dicarbonyldichloridobis[2-(2-methoxyphenyl)-1,8-naphthyridine-κN 8]ruthenium(II), both [RuCl2(C15H12N2O)2(CO)2], in good yield. Both ruthenium(II) complexes display a slightly distorted octahedron with two cis carbonyl, two cis chloride and two cis naphthyridine ligands, the latter coordinated in a monodentate fashion through the N atom in the 8-position. Both complexes exhibit a moderate catalytic activity in the hydrogen-transfer reaction from propan-2-ol to acetophenone in the presence of a base, with 100% selectivity.

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