SBA‐15‐supported N‐coordinate ruthenium(II) materials bearing sulfonamide‐type ligands: Effect of ligand backbones on catalytic transfer hydrogenation of ketones and aldehydes
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DOI: 10.1002/aoc.3699
Abstract: [RuLCl(p-cymene)] (L = N-arylsulfonylphenylenediamine) complexes (2a–d) were synthesized from the reaction between [Ru(p-cymene)Cl2]2 and ligand. Additionally, SBA-15–[RuLCl(p-cymene)] derived catalysts (3a–d) were successfully immobilized onto mesoporous silica (SBA-15) by an easily accessible approach. The structural elucidations of 2a–d… read more here.
Keywords: coordinate ruthenium; supported coordinate; hydrogenation; sba supported ... See more keywords
Applying Le Chatelier's Principle for a Highly Efficient Catalytic Transfer Hydrogenation with Ethanol as the Hydrogen Source
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DOI: 10.1002/cctc.201801334
Abstract: While isopropanol or formic acid derivatives are mainly applied as hydrogen sources in catalytic transfer hydrogenation reactions, there are only a few reports on the use of primary alcohols. In the present communication we report… read more here.
Keywords: catalytic transfer; hydrogen; hydrogenation; transfer hydrogenation ... See more keywords
A Biphasic Medium Slows Down the Transfer Hydrogenation and Allows a Selective Catalytic Deuterium Labeling of Amines from Imines Mediated by a Ru−H/D+ Exchange in D2O
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DOI: 10.1002/cctc.201801343
Abstract: The transfer hydrogenation (TH) of several aldimines has been studied using [RuCl(p‐cymene)(dmbpy)]BF4, 1, (dmbpy=4,4′‐dimethyl‐2,2′‐bipyridine) as a precatalyst. Both neat water and a biphasic water/toluene mixture (w/t) have been successfully used as solvents. In the w/t… read more here.
Keywords: deuterium; deuterium labeling; transfer hydrogenation; biphasic medium ... See more keywords
CoOx@Co Nanoparticle‐based Catalyst for Efficient Selective Transfer Hydrogenation of α,β‐Unsaturated Aldehydes
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DOI: 10.1002/cctc.201901996
Abstract: Currently, developing simple and effective catalysts for selective hydrogenation of α,β‐unsaturated aldehydes to unsaturated alcohols is challenging. Herein, an efficient CoOx‐shell/Co‐core structured nanoparticle catalyst is synthesized by a facile ultrasonic‐assisted carbothermal reduction method. The resultant… read more here.
Keywords: unsaturated aldehydes; selective transfer; hydrogenation; transfer hydrogenation ... See more keywords
The Impact of Computational Uncertainties on the Enantioselectivity Predictions: A Microkinetic Modeling of Ketone Transfer Hydrogenation with a Noyori‐type Mn‐diamine Catalyst
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DOI: 10.1002/cctc.202100341
Abstract: Selectivity control is one of the most important functions of a catalyst. In asymmetric catalysis the enantiomeric excess (e.e.) is a property of major interest, with a lot of effort dedicated to developing the most… read more here.
Keywords: microkinetic modeling; transfer hydrogenation; reaction; catalyst ... See more keywords
Mechanistic Studies on Ruthenium(II)-Catalyzed Base-Free Transfer Hydrogenation Triggered by Roll-Over Cyclometalation.
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DOI: 10.1002/cplu.201600526
Abstract: The synthesis of 2-substituted pyridine-pyrimidine ligands and their complexation with arene ruthenium(II) chloride moieties is reported. Depending on the electronic and steric influences of the ligand, the catalysts undergo CH activation by roll-over cyclometalation. This… read more here.
Keywords: cyclometalation; base free; transfer hydrogenation; roll cyclometalation ... See more keywords
Biomass Sucrose-Derived Cobalt@Nitrogen-Doped Carbon for Catalytic Transfer Hydrogenation of Nitroarenes with Formic Acid.
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DOI: 10.1002/cssc.201802163
Abstract: Fabrication of non-noble metal-based heterogeneous catalysts by a facile and cost-effective strategy for ecofriendly catalytic transfer hydrogenation (CTH) is of great significance for organic transformations. A cobalt@nitrogen-doped carbon (Co@NC) catalyst was prepared from renewable biomass-derived… read more here.
Keywords: catalytic transfer; nitrogen doped; doped carbon; biomass ... See more keywords
Direct synthesis of 5-methylfurfural from D-fructose by iodide-mediated transfer hydrogenation.
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DOI: 10.1002/cssc.202102021
Abstract: Herein, we firstly report a robust catalytic system for the green synthesis of 5-methylfurfural (5-MF) by iodide-mediated transfer hydrogenation. Around 50% of 5-MF was yielded from D-fructose within 7.5 min using NaI as the catalyst… read more here.
Keywords: mediated transfer; transfer hydrogenation; iodide mediated; synthesis methylfurfural ... See more keywords
Semi-batch hydrotreatment of lignin-derived phenolic compounds over Raney-Ni with a continuous regeneration of the H-donor solvent.
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DOI: 10.1002/cssc.202102099
Abstract: Lignin can be converted in useful precursors of fuels and fine chemicals by thermochemical conversion followed by catalytic hydrogenation using metal catalysts at severe reaction conditions. Thus, mild hydrogenation would significantly improve the sustainability of lignin valorization.… read more here.
Keywords: hydrogenation; lignin; transfer hydrogenation; conversion ... See more keywords
Selective catalytic transfer hydrogenation of lignin to alkyl guaiacols over NiMo/Al-MCM-41.
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DOI: 10.1002/cssc.202200099
Abstract: Efficient deoxygenation of lignin-derived bio-oils is central to their adoption as precursors to sustainable liquid fuels in place of current fossil resources. In situ catalytic transfer hydrogenation (CTH), using isopropanol and formic acid as solvent… read more here.
Keywords: lignin; transfer hydrogenation; transfer; catalytic transfer ... See more keywords
Catalytic transfer hydrogenation of 5-hydroxymethyl furfural with primary alcohols over skeletal CuZnAl catalysts.
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DOI: 10.1002/cssc.202200237
Abstract: Catalytic transfer hydrogenation (CTH) with alcohols has been increasingly employed as effective tool for biomass upgrading, however, relying predominantly on secondary alcohols. Herein, we reported for the first time the skeletal CuZnAl catalysts for the… read more here.
Keywords: transfer hydrogenation; cuznal catalysts; hydrogenation; catalytic transfer ... See more keywords