• Transfer hydrogenation usually occurs at mild temperature and pressure conditions using organic or organometallic catalysts, many of which are chiral, allowing efficient asymmetric synthesis. (wikipedia.org)
  • In the area of organic synthesis, a useful family of hydrogen-transfer catalysts have been developed based on ruthenium and rhodium complexes, often with diamine and phosphine ligands. (wikipedia.org)
  • Traditional metal-based catalysts, hydrogenation of aromatic or heteroaromatic substrates tend to fail. (wikipedia.org)
  • Hydrogenation by frustrated Lewis pairs: main group alternatives to transition metal catalysts? (google.ca)
  • Size controlled Pt over mesoporous NiO nanocomposite catalysts : thermal catalysis vs. photocatalysis. (ki.si)
  • His research with undergraduates at Central focuses on introducing students to catalysis and developing new organometallic catalysts for transfer hydrogenation reactions. (ionicviper.org)
  • 2021. "Computational Study of Triphosphine-Ligated Cu(I) Catalysts for Hydrogenation of CO2 to Formate. (pnnl.gov)
  • 2) integration of solid catalysts into a reactor environment where an optimum mass and heat transfer can occur. (edu.au)
  • These chimeric scaffolds were tested as hosts for biotinylated catalysts as artificial metalloenzymes (ArM) for asymmetric transfer hydrogenation, ring-closing metathesis and anion−π catalysis. (ward-lab.ch)
  • We will integrate surface science, catalyst chemistry, and reaction engineering approaches to investigate catalysis mechanisms and determine the relationship between synthesis conditions, physicochemical properties and catalytic performance, by which rationally synthesize new-generation catalysts to improve current processes and energy technologies with an attempt to facilitate sustainable development of our society. (ntu.edu.tw)
  • Ruthenacycles and Iridacycles as Catalysts for Asymmetric Transfer Hydrogenation and Racemisation. (univ-grenoble-alpes.fr)
  • Theoretical chemistry and computational modeling help scientists in the Institute for Integrated Catalysis better understand the structure and properties of working catalysts, informing preparation of novel catalysts with novel reaction routes. (pnnl.gov)
  • The combination of magnesium and methanol is used in alkene reductions, e.g. the synthesis of asenapine: Organocatalytic transfer hydrogenation has been described by the group of List in 2004 in a system with a Hantzsch ester as hydride donor and an amine catalyst: In this particular reaction the substrate is an α,β-unsaturated carbonyl compound. (wikipedia.org)
  • M. Selvaraj and C. S. Ha, "Highly Selective Synthesis of Enones from Benzylic Compounds over CrSBA-15," Catalysis Today, Vol. 175, No. 1, 2011, pp. 546-551. (scirp.org)
  • M. Selvaraj, D. W. Park, S. Kawi and I. Kim, "Selective Synthesis of Benzophenone over Two-Dimentional Mesostructured CrSBA-15," Applied Catalysis A: General, Vol. 415-416, 2012, pp. 17-21. (scirp.org)
  • As a recipient of an NIH Ruth L. Kirschstein postdoctoral fellowship, Matt spent several years at the University of Minnesota - Twin Cities studying nonheme iron systems with Professor Lawrence Que, Jr. His research interests include the design and synthesis of bio-mimetic/inspired inorganic compounds for catalysis. (ionicviper.org)
  • Synthetic inorganic and organometallic chemistry: Synthesis of relevant species to catalysis and electrocatalysis, particularly for fuel production and utilization. (pnnl.gov)
  • The research of professor Evgeny Rebrov at the research group Energy Intensified Chemical Reaction Engineering is related to the development of structured multiphase catalytic reactors, in particular hydrogenation reactors for fine chemical synthesis and their scale-up to capacities of 50 kg per day and beyond. (tue.nl)
  • Norton, J.R. 'H· Transfer-Initiated Synthesis of γ-Lactams: Interpretation of Cycloisomerization and Hydrogenation Ratios' ACS Catal . (burnslev.com)
  • Potassium fluoride-barium oxide catalysis in an easy and efficient synthesis of methysticin from piperonal under microwave irradiation. (univ-grenoble-alpes.fr)
  • His research is focused on the synthesis and characterization of porous solids with enhanced properties and their catalytic application in Fine Chemistry, Environmental Catalysis and Biomass Valorization. (giqa.es)
  • The most cited articles from Catalysis Communications published since 2020, extracted from Scopus . (elsevier.com)
  • Catalytic hydrodeoxygenation (HDO), especially catalytic transfer hydrogenation (CTH), is an effective strategy in reducing oxygen content in biomass feedstocks, but faces challenges in selectivity control. (confex.com)
  • 2016 Catalytic transfer hydrogenation of biomass-derived 5-hydroxymethyl furfural to the building block 2, 5-bishydroxymethyl furan. (esf.edu)
  • Srinivas Rangarajan , an assistant professor of chemical and biomolecular engineering in Lehigh University's P.C. Rossin College of Engineering and Applied Science, recently won support from the National Science Foundation's Faculty Early Career Development ( CAREER ) program for his proposal to develop novel tools to better understand a promising chemistry called catalytic transfer hydrogenation (CTH). (lehigh.edu)
  • The process of transferring hydrogen atoms from a hydrogen donor to a hydrogen acceptor is called catalytic transfer hydrogenation. (lehigh.edu)
  • When a chiral version of an SPO was used in asymmetric transfer hydrogenation of isopropanol and acetophenone , an enantiomeric excess of 89% was achieved. (rsc.org)
  • Among our favorite ligand motifs are modified pincer ligands, OH-functionalized N-heterocycles for hydrogenation/dehydrogenation, as well as substituted naphthyridines for photocatalytic reactions. (oist.jp)
  • His research program investigates aspects of light-induced reactivity of metal-ligand multiple bonds, cooperative ligand designs that include proton coupled electron transfer relays, and main group element reactivity in catalysis. (ionicviper.org)
  • "Modulating Reactivity and Selectivity of 2‑Pyrone-Derived Bicyclic Lactones through Choice of Catalyst and Solvent" appears in ACS Catalysis . (iastate.edu)
  • examining electron transfer at interfaces of metal oxides, including nanostructured materials, to understand the factors controlling the reactivity of nanoscale materials. (pnnl.gov)
  • In the catalytic cycle for this reaction the amine and the aldehyde first form an iminium ion, then proton transfer is followed by hydrolysis of the iminium bond regenerating the catalyst. (wikipedia.org)
  • Extending the scope of this reaction towards ketones or rather enones requires fine tuning of the catalyst (add a benzyl group and replace the t-butyl group by a furan) and of the Hantzsch ester (add more bulky t-butyl groups): With another organocatalyst altogether, hydrogenation can also be accomplished for imines. (wikipedia.org)
  • It is interesting to bridge the gap between homogeneous and heterogeneous catalysis via controllable construction of a heterogeneous catalyst containing defined active sites. (nature.com)
  • Upon hydrogenation of cyclic carbonates in the presence of a homogenous Ru-PNP catalyst, a 1 : 1 mixture of methanol and glycol is produced. (osti.gov)
  • Z. Lounis, A. Riahi, F. Djafri and J. Muzart, "Chromium-Exchanged Zeolite (CrE-ZSM-5) as Catalyst for Alcohol Oxidation and Benzylic Oxidation with t-BuOOH," Applied Catalysis A: General, Vol. 309, No. 2, 2006, pp. 270-272. (scirp.org)
  • Owing to the coordination by pyrrolic-N, the SA Cu catalyst displays an enhanced activity (two-fold) for transfer hydrogenation of quinoline to access the valuable molecule tetrahydroquinoline with a good selectivity (99%) under mild conditions. (edu.sa)
  • He will develop a novel computational framework to answer two fundamental questions: How does this hydrogen transfer work exactly at the molecular scale, and what's the right donor and the right catalyst for a given acceptor? (lehigh.edu)
  • Clusters 2-4 were tested as catalyst precursors for transfer hydrogenation on the model substrate 4-fluoroacetophenone, using iPrOH as a solvent and a hydrogen source. (unive.it)
  • In fact, various approaches have been implemented in the past decades to combine the advantages of homogeneous catalysis with those of heterogeneous catalysis. (nature.com)
  • Our main goal is to the design and utilization of organometallic and coordination compounds in homogeneous catalysis, small molecule activation and in stimuli-responsive materials design. (oist.jp)
  • These results help us understand the relationship between homogeneous and heterogeneous catalysis. (nature.com)
  • Evgeny Rebrov got his PhD in Chemistry (cum laude) from Boreskov Institute of Catalysis (Novosibirsk, Russia) in 1999 and his DSc in Chemical Engineering from Lomonosov Moscow University of Fine Chemical Technology in 2012. (tue.nl)
  • We are developing new catalysis based on earth-abundant metals for selective catalytic transformations. (oist.jp)
  • One thrust of the Chemical Transformations Initiative aimed to build predictive theory capabilities and computational tools for modeling selective electrochemical hydrogenation of surrogate bio-oil. (pnnl.gov)
  • H-bonded counterion-directed catalysis (HCDC) is a strategy wherein a chiral anion that is hydrogen-bonded to the achiral ligand of a metal complex is responsible for enantioinduction. (urv.cat)
  • A transition state for the hydrogen -transfer was fully characterized, which revealed that the process occurs via a concerted outer-sphere mechanism. (rsc.org)
  • The higher electron density of SA Cu species induced by the predominate pyrrolic-N coordination benefits the hydrogen transfer process and reduces the energy barrier of the hydrogenation pathway, which accounts for the improved catalytic effeciency. (edu.sa)
  • The self-assembly of Secondary Phosphine Oxides (SPOs) into anionic bidentate chelates was used to construct unique systems for metal catalyzed transfer hydrogenation of ketones in isopropanol . (rsc.org)
  • The hydrogen-donor (transfer agent) is typically isopropanol, which converts to acetone upon donation of hydrogen. (wikipedia.org)
  • The potential for catalysis was shown in the Ru II -catalyzed, solvent-free hydration of benzonitrile and the Ru II - and Ir I -catalyzed transfer hydrogenation of cyclohexanone in isopropanol. (vu.nl)
  • In chemistry, transfer hydrogenation is a chemical reaction involving the addition of hydrogen to a compound from a source other than molecular H2. (wikipedia.org)
  • In this article we present the application of H-bonded counterion-directed catalysis to the Au(I)-catalyzed enantioselective tandem cycloisomerization-addition reaction of 2-alkynyl enones. (urv.cat)
  • But doing so requires figuring out, in part, a more benign process of hydrogenation, the chemical reaction between molecular hydrogen and other compounds and elements that is used to create new molecules. (lehigh.edu)
  • In HDS, the removal of organosulfur compounds is achieved by hydrogenation, which generally results in the formation of saturated hydrocarbon and H 2 S. In HDS operation, the external mass transfer resistance does not affect the reaction rate significantly, whereas the effect of intraparticle mass transfer resistance on the HDS rate is significant. (taylorfrancis.com)
  • The Center for Molecular Electrocatalysis uses computational chemistry to understand the interconversion of electrical energy and chemical bonds through precise control of proton and electron transfers. (pnnl.gov)
  • More exotic transfer hydrogenations have been reported, including this intramolecular one: Many reactions exist with alcohol or amines as the proton donors, and alkali metals as electron donors. (wikipedia.org)
  • Fundamental thermodynamic studies of bond strengths: Determination of bond strengths using thermodynamic cycles through the study of equilibria and electrochemical processes, particularly as related to catalysis. (pnnl.gov)
  • We are particularly interested in understanding how the geometry of a molecule changes: one example is isomerization or proton transfer that is driven by vibrational excitation. (lu.se)
  • It avoids the need for high-pressure molecular H2 used in conventional hydrogenation. (wikipedia.org)
  • He is currently leading the molecular catalysis effort on CO 2 reduction and fuel utilization, and is also working as part of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center. (pnnl.gov)
  • J Molecular Catalysis A-CHEMICAL, 229 (1-2). (csircentral.net)
  • Metal-organic frameworks (MOFs) are a class of crystalline porous materials with outstanding physical and chemical properties that make them suitable candidates in many fields, such as catalysis, sensing, energy production, and drug delivery. (bvsalud.org)
  • However, there is still a long pathway toward bridging these catalysis research areas. (nature.com)
  • Transfer hydrogenations can proceed with high enantioselectivities when the starting material is prochiral: RR ′ C = O + Me 2 CHOH ⟶ RR ′ C ⋆ H − OH + Me 2 C = O {\displaystyle {\ce {RR'C=O{}+Me2CHOH->RR'C^{\star }H-OH{}+Me2C=O}}} where RR'C*H−OH is a chiral product. (wikipedia.org)
  • The paper is withdrawn from "Modern Research in Catalysis" due to personal reasons from the corresponding author of this paper. (scirp.org)
  • After number of years at Wayne State developing biosensors that use electron transfer in protein-quantum dot hybrids, he focused primarily on undergraduate research at Calvin University (formerly Calvin College) in Grand Rapids, MI. (ionicviper.org)
  • Aaron Appel is an organometallic chemist with a focus on basic energy research related to the production and use of fuels through catalysis and electrocatalysis. (pnnl.gov)
  • His research focuses on the optimization of the regular microscopic structure of the reactor internals, to maximize process selectivity and the radial convective heat transfer rate. (tue.nl)
  • When hydrogenation is used to make ultra-low-sulfur diesel, for example, it requires a huge catalytic reactor, temperatures of up to 500 degrees Celsius, and hundreds of pounds of pressure. (lehigh.edu)
  • Norton, J.R. 'Catalysis of Radical Cyclizations from Alkyl Iodides under H2: Evidence for Electron Transfer from [CpV(CO)3H]-' J. Am. Chem . (burnslev.com)