Relevant bibliographies by topics / One-pot catalysis

Academic literature on the topic 'One-pot catalysis'

Author: Grafiati
Published: 7 July 2024
Last updated: 7 July 2024

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Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Journal articles on the topic "One-pot catalysis":

1

Choi, Youngbo, Yang Sik Yun, Hongseok Park, Dae Sung Park, Danim Yun, and Jongheop Yi. "A facile approach for the preparation of tunable acid nano-catalysts with a hierarchically mesoporous structure." Chem. Commun. 50, no. 57 (2014): 7652–55. http://dx.doi.org/10.1039/c4cc01881h.

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Kumar, Devarapalli Ravi, and Gedu Satyanarayana. "Palladium Catalysis: One‐Pot Synthesis of Fluorenones." ChemistrySelect 3, no. 27 (July 18, 2018): 7867–70. http://dx.doi.org/10.1002/slct.201801787.

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Zhang, Luxin, Xu Xing, Ruijun Sun, and Meng Hu. "Catalytic conversion of carbohydrates into 5-ethoxymethylfurfural using γ-AlOOH and CeO2@B2O3 catalyst synergistic effect." RSC Advances 12, no. 36 (2022): 23118–28. http://dx.doi.org/10.1039/d2ra01866g.

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Sau, Samaresh Chandra, Sudipta Raha Roy, and Swadhin K. Mandal. "One-Pot Consecutive Catalysis by Integrating Organometallic Catalysis with Organocatalysis." Chemistry - An Asian Journal 9, no. 10 (August 14, 2014): 2806–13. http://dx.doi.org/10.1002/asia.201402363.

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Pellissier, Hélène. "Asymmetric Zinc Catalysis in Green One-pot Processes." Current Organic Chemistry 25, no. 8 (April 28, 2021): 857–75. http://dx.doi.org/10.2174/1385272825666210216123607.

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This review collects for the first time enantioselective one-pot processes promoted by green chiral zinc catalysts. It illustrates how much these cheap, non-toxic and environmentally benign catalysts allow unprecedented asymmetric domino and tandem reactions of many types to be achieved, allowing direct access to a wide variety of very complex chiral molecules.
6

De Nisi, A., S. Sierra, M. Ferrara, M. Monari, and M. Bandini. "TBAF catalyzed one-pot synthesis of allenyl-indoles." Organic Chemistry Frontiers 4, no. 9 (2017): 1849–53. http://dx.doi.org/10.1039/c7qo00414a.

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Prochazka, Michal P., Rolf Carlson, Pentti Mälkönen, Heikki Hukkanen, M. Nielsen, M. S. Lehmann, and Tadashi Tokii. "One-Pot Fischer Indole Synthesis by Zeolite Catalysis." Acta Chemica Scandinavica 44 (1990): 614–16. http://dx.doi.org/10.3891/acta.chem.scand.44-0614.

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Gao, Xiang, and Henri B. Kagan. "One-pot multi-substrate screening in asymmetric catalysis." Chirality 10, no. 1-2 (1998): 120–24. http://dx.doi.org/10.1002/chir.19.

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Gao, Xiang, and Henri B. Kagan. "One‐pot multi‐substrate screening in asymmetric catalysis." Chirality 10, no. 12 (1998): 120–24. http://dx.doi.org/10.1002/(sici)1520-636x(1998)10:1/2<120::aid-chir19>3.3.co;2-1.

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Hou, Fang, Wei Zheng, and Nasser Yousefi. "Design, Characterization and Application of The SCMNPs@PC/VB1-Zn as A Green and Recyclable Biocatalyst for Synthesis of Pyrano[2,3-c]pyrazole and 4H-benzo-[b]-pyran Derivatives." Bulletin of Chemical Reaction Engineering & Catalysis 15, no. 1 (January 3, 2020): 199–212. http://dx.doi.org/10.9767/bcrec.15.1.6179.199-212.

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Eco-friendly and reusable solid acid catalysts (SCMNPs@PC/VB1-Zn) were identified as one of the most effective basic catalysts for the composition of a pot, three-component pyrano[2,3-c]pyrazoles. Methyl-1-phenyl-1H-pyrazole-5(4H)-one, benzaldehyde and malononitrile in high yield at 80 °C. SCMNPs@ PC/VB1-Zn reports the simple and efficient catalysis of a three-component pot reaction of dimedone, aldehydes, and malononitrile to 4H-benzo-[b]-pyran derivatives. This magnetic nanocatalyst can be recycled more than 6 times without dramatically reducing performance with respect to reaction time and efficiency. Copyright © 2020 BCREC Group. All rights reserved
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Journal articles Dissertations / Theses

Dissertations / Theses on the topic "One-pot catalysis":

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Boscaro, Paolo. "One-pot synthesis of structurated of TiO2 materials easy to handle (not nanoparticles) for photocatalysis under visible light and sunlight." Thesis, Montpellier, Ecole nationale supérieure de chimie, 2016. http://www.theses.fr/2016ENCM0009.

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L’objectif de ce travail est de développer des matériaux à base de titane sous la forme de monolithe capable d’assurer des réactions photo catalytiques en flux, sous la lumière du soleil ou la lumière visible. Ces matériaux doivent présenter des propriétés physiques et chimiques particulières afin de pallier aux inconvénients des photocatalyseurs classiques qui limitent leur efficacité, à savoir : la stabilité mécanique, la perte de charge, le faible transport de masse, et le controle du temps de contact, la gamme de longueur d’onde d’absorption réduite, le temps de vie de la charge photo-générée. Trois voies de synthèse de monolithes TiO2 ont ainsi été élaborées et optimisées pour atteindre la forme et la dimension adéquate à l’application visée. Les monolithes TiO2 présentant une porosité bimodale macro-mésoporeux interconnectée, avec une stabilité mécanique et chimique élevée, ont été utilisés comme un microréacteur photocatalytique sous flux sous différentes conditions de flux. Les monolithes synthétisés ont montré une absorption plus élevée dans la lumière du visible, ce qui leur permet d’être efficaces dans une plus grande gamme de rayonnements. L’absorption dans le visible des monolithes de TiO2 est attribuée aux espèces carbonées et/ou azotées contenues dans le matériau. Ces matériaux on été testes dans la dégradation de l’orange G en milieu aqueux. Ce suivi a été réalisé à la fois en réacteur en batch et en flux, à la lumière du soleil, sous lumière du visible et sous lumière UV. Tous les tests catalytiques ont conduit à une dégradation totale du polluant avec une cinétique plus rapide que pour le matériau de référence (TiO2 P25) sous rayonnement visible. De plus aucune désactivation n’est détectée après 85 h sous circulation de la solution dans les conditions du flux opératoire. L’autre utilisation envisagée pour ces monolithes est le water-splitting (dissociation de l’eau en hydrogène et oxygène). Pour cela des films autoportés (~ 1 mm d’épaisseur) de compositions similaires aux précédents matériaux ont été synthétisés afin de permettre une activité photo-catalytique de dissociation de l’eau sous lumière visible. Afin d’augmenter la production d’hydrogène, des matériaux associant une couche d’oxyde de cuivre et une couche de TiO2 ont été réalisés par l’optimisation de la méthode précédente
The aim of this study is to develop titania based materials able to perform photocatalytic reaction in flow condition, under sunlight or visible light, with special physical and chemical properties in order to overcome common photocatalysts’ deficiencies like: mechanical stability, pressure drop, low mass transfer and contact time, reduced wavelength range absorption, photo-generated charge lifetime, and in general all features that limit photocatalysts efficiencies. Three synthesis methods have been developed and optimized to obtain TiO2 monoliths with shape and dimension that can be adapted to any specific application. TiO2 monoliths, displaying bimodal macro-mesoporous interconnected network together with an elevated mechanical and chemical stability, have been used as flow photocatalyst microreactor under different flow rate conditions. Synthesized monoliths displayed enhanced visible light absorption, enabling them to efficiently operate in a vast range of illumination. TiO2 monoliths absorption on the visible range of the spectrum is attributed to carbon-nitrogen containing species within the material. Orange G degradation in aqueous medium have been performed both in batch and flow reactors under sunlight, visible light and UV light. All reactions resulted in complete mineralization of pollutant, with higher degradation rate than TiO2 nanoparticles benchmark material (P-25) when visible light is used. No photocatalyst deactivation have been detected after 85 hours of wastewater treatment in flow conditions. Similar TiO2 material, with a free-standing thick-film shape, have been used to perform photocatalytic water splitting under visible light. Another strategy has been developed to synthesize a TiO2/CuO self-standing film to enhance charge separation giving unexpected results in terms of hydrogen production
2

Giorgi, Pascal. "Nouvelles réactions à économie d'atomes et d'étapes basées sur la catalyse par des nanoparticules d'or et la multicatalyse. Applications dans la synthèse de chimie fine et des odorants." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR4127.

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L'élaboration de méthodes de synthèse, basées sur l’utilisation d’espèces métalliques a été un sujet de tous les instances en chimie organique. Malgré l’efficacité des métaux utilisés en catalyse homogènes, leurs procédures de recyclage restent limitées. Ce pourquoi, une contrainte supplémentaire a été placée dans la conception de catalyseurs, pouvant offrir à la fois l'efficacité de la catalyse homogène et le recyclage de l’hétérogène. Dans ce contexte, les nanoparticules métalliques sont apparues comme objet phare, en raison de leurs propriétés physico-chimiques inégalées. On a découvert que les nanoparticules de métaux nobles présentaient des propriétés catalytiques similaires dans certains cas, aux complexes monoatomiques. De plus, les Au NPs ont montré une activité catalytique remarquable dans l'oxydation d’alcools activés sous O2. Nous avons donc envisagé des procédures multicatalytiques, basées sur les NPs d’Au. Notre choix d'utiliser des catalyseurs solides était pertinent, puisque les nano-catalyseurs, pour lesquels la fraction de sites actifs se trouve en surface, limitent les risques de cross-quenching. Ici, nous présentons trois nouveaux procédés bicatalytiques permettant l’accès, à des chromenes/quinoléines (53-93%) via une oxydation / Michael Addition/ aldolisation, combinant nanocatalyse et catalyse basique, l’accès à des ortho-THC (50-81%) via oxydation / arylation / cyclisation, combinant nanocatalyse et catalyse supportée, ainsi qu’une une oxydation / hydrolyse en cascade, pour accéder à l’HMLA (86%, sel 93%), un grand panel de produits d'activité biologique reconnue, utilisé en parfumerie ou visant une pré-industrialisation via la chimie en flux continu
Elaboration of synthetic methods based on metal-catalyzed reactions has been a hot topic in organic chemistry. Despite good efficiency, catalysis proceeding homogeneously, are limited in the operation of recovering/recycling of the catalysts. An important stress was placed to design catalysis, offering both the efficiency of homogeneous catalysts and the recyclability of heterogeneous catalysts. In this context, metal nanoparticles merged as a key tool, due to their unique physical and chemical properties. Notably, Au NPs have shown remarkable catalytic activity in the oxidation of activated alcohols under O2 atmosphere. Since now, the access to more complex molecules is the next step forward for this field, we envisioned multicatalytic roads, based on the oxidation of activated alcohols via supported Au NPs. Our choice of using solid catalysts was relevant, since nanostructured catalysts for which the fraction of active sites are located on the surface, limit the risk of cross-quenching. The latter carbonyl formed, could be further converted in situ, via tandem protocol. Herein, we developed novel, atom- and step-economical bicatalytic one-pot processes, to access substituted chromenes/quinolines (53-93%) by tandem oxidation/hetero-Michael addition/aldolisation combining nanocatalysis and base catalysis, ortho-THCs (50-81%) via tandem oxidation/arylation/cyclisation combining nanocatalysis and supported catalysts and a tandem cascade oxidation/hydrolysis to access HMLA (86%, sel 93%). A large panel of products of biological activity relevance, pertaining to the fragrance chemistry or aiming in some cases, pre-industrial scalability via continuous flow applications
3

Kudaibergenov, S. E., G. S. Tatykhanova, and E. Baigaziyeva. "Preparation, Characterization and Catalytic Activity of Gold Nanoparticles Stabilized by Hydrophilic Polymers." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35034.

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Optical properties, structure, size and morphology of colloidal gold nanoparticles (AuNPs) stabilized by a series of hydrophilic polymers possessing nonionic, anionic, cationic and amphoteric nature were characterized by visible spectroscopy, dynamic light scattering (DLS), X-ray diffraction (XRD) and scanning electron microscopy (SEM), transmission electron microscopy (TEM). The polymer-protected AuNPs were prepared by “one-pot” synthetic protocol. The kinetics of formation of AuNPs was determined. The influence of the molecular weight (Mw) of polymers and concentration of AuNPs on the size of AuNPs was shown. The catalytic activity of polymer-protected AuNPs with respect to hydrogenation of 4-nitrophenol was studied. High conversion degree of 4-nitrophenol to 4-aminophenol was evaluated by visible spectroscopy. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35034
4

Lainer, Bruno. "A multicatalytic approach to enantio-, and diastereoselective arylation of alcohols." Electronic Thesis or Diss., Strasbourg, 2023. http://www.theses.fr/2023STRAF080.

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Les groupements alcooliques sont présents dans une grande diversité de produits chimiques fins précieux issus de la nature et de la synthèse, c'est pourquoi les méthodes permettant leur diversification structurelle sont recherchées. Cependant, la modification de la structure des alcools à certaines positions non réactives, même avec l'aide de la catalyse, reste un défi ou nécessite des procédures multi-étapes fastidieuses et souvent coûteuses. Récemment, une attention accrue a été accordée à la multicatalyse, qui combine plusieurs catalyseurs au sein d'un même système, ce qui permet de découvrir des réactivités auparavant inaccessibles ou d'accroître l'efficacité globale des transformations en plusieurs étapes. Les méthodes décrites ici permettent l'α- et la β-arylation diastéréo- et énantiosélective d'alcools. En combinant des catalyseurs à base de Ru et de Pd, il est possible de réaliser une β-arylation énantiosélective (et diastéréodivergente dans le cas d'alcools portant déjà des stéréocentres) sans précédent d'alcools primaires. En outre, dans le cadre d'une catalyse relais séquentielle, il est possible d'obtenir des alcools benzyliques secondaires enrichis enantioénergie à partir de divers produits de départ disponibles, tels que des alcools primaires ou des alcools portant une double liaison. Dans l'ensemble, ces protocoles démontrent le potentiel de la multicatalyse en tant qu'outil synthétique pour diversifier les alcools. Dans un contexte plus large, cette thèse ouvre la voie à la conception de nouvelles stratégies et méthodes multicatalytiques pour une synthèse efficace
Alcohol moieties are present in a great diversity of valuable fine chemicals from nature and synthesis, therefore methods enabling their structural diversification are sought after. However, modifying the structure of alcohols at certain unreactive positions, even with the aid of catalysis, remains a challenge or requires tedious often wasteful multistep procedures. Recently, increased attention has been paid to multicatalysis, which combines multiple catalysts within one system, enabling the discovery of previously inaccessible reactivities or increasing the overall efficiency of multistep transformations. Described within are methods which enable the diastereo-, and enantioselective α-, and β-arylation of alcohols. By combining Ru- and Pd-based catalysts the unprecedented, enantioselective (and diastereodivergent in the case of alcohols already bearing stereocenters) β-arylation of primary alcohols can be carried out. Also, under sequential relay catalysis enantioenriched secondary benzylic alcohols can be obtained from a variety of available starting materials, such as primary alcohols, or alcohols bearing a double bond. Overall, these protocols demonstrate the potential of multicatalysis as a synthetic tool for diversifying alcohols. In a broader context, this thesis sets the stage for devising novel, multicatalytic strategies and methods for efficient synthesis
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Cusati, Giuseppe. "La catalyse hétérogène au palladium en chimie fine : une étude sur la synthèse " one-pot " de stilbènes et bibenzyles : application à la synthèse de styrènes et aryl-indoles." Phd thesis, Université Claude Bernard - Lyon I, 2009. http://tel.archives-ouvertes.fr/tel-00876267.

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Les synthèses " one pot " multi-étapes efficaces et éco-compatibles ont été envisagées pour la synthèse de molécules potentiellement bioactives tels que les systèmes bis(bibenzyliques) et leurs précurseurs stilbéniques ou bibenzyliques par catalyse hétérogène au palladium. Une synthèse " one-pot " impliquant une réaction de couplage de Heck suivie d'une hydrogénation des stilbènes ainsi formés a été mise au point en présence de Pd/C. Cette stratégie c'est révélée être limitée lors de l'application à des substrats désactivés et stériquement encombrées. Couplée au manque de disponibilité commerciale d'oléfines aromatiques intéressantes pour nos objectifs, nous avons mis au point une synthèse de styrènes par catalyse hétérogène à partir d'halogénures d'aryles et du vinyltrifluoroborate de potassium impliquant un couplage de Suzuki-Miyaura. Cette vinylation hétérogène a été ensuite appliquée à la synthèse " one-pot " de stilbènes. Des études d'optimisation de ce procédé sont encore en cours. Les stilbènes ainsi obtenus ont été utilisée pour la synthèse de bis(bibenzyles) ouverts et fermés. Pour ce faire différentes stratégies " one-pot " ont été évaluées au cours de ces travaux et des bis(stilbènes) ont été obtenus avec des rendements compris entre 30% et 50%. Les bis(stilbènes) ainsi obtenus ont été l'objet d'études en hydrogénation. A ce jour aucune de nos tentatives n'a permis l'obtention de bis(bibenzyles) quelles que soient les conditions employées. Des études sont en cours pour comprendre les raisons de ces résultats et obtenir les bis(bibenzyles) cibles de nos travaux
6

Luciani, Sara. "Sintesi enantio- e diastereoselettiva di atropoisomeri N-N." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24360/.

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Gli atropoisomeri rappresentano la principale e più studiata classe di composti aventi chiralità assiale. Nel corso degli anni, gli studi su atropoisomeri C-C e C-X sono aumentati notevolmente, vista anche la possibilità di utilizzarli come leganti chirali per catalizzatori di sintesi asimmetrica. Tuttavia, lavori riguardanti atropoisomeri con asse chirale X-X sono abbastanza rari in letteratura, soprattutto per quanto riguarda la sintesi asimmetrica. Il lavoro che viene presentato è incentrato sullo sviluppo di una metodologia di sintesi asimmetrica per la preparazione di una nuova classe di idrazine atropoisomeriche sul legame N-N. È stata sfruttata una sintesi articolata in due step: una reazione di α-amminazione di carbonili con il di-terz-butil azodicarbossilato via enammina e una reazione di alchilazione con benzil bromuro in condizioni di Phase Transfer Catalysis. I substrati carbonilici testati sono stati l’iso-butirraldeide e la 2-fenil propanaldeide, che portano rispettivamente a una sintesi enantioselettiva e diastereoselettiva. Attraverso degli screening, sono state individuate le condizioni di reazione ottimali di entrambi gli step, sia in termini di resa che di enantio- e diastereoselettività finali. Nel complesso, è stato ottenuto un modesto eccesso enantiomerico nella reazione enantioselettiva e buoni rapporti diastereoisomerici nella reazione diastereoselettiva, che possono essere considerati degli importanti punti di partenza per ulteriori futuri lavori di ottimizzazione del sistema catalitico. In aggiunta, l’intera sintesi diastereoselettiva è stata implementata in una procedura one-pot che evita lo step di purificazione intermedio. Allo scopo, sono state necessarie ulteriori indagini per valutare la compatibilità delle due reazioni nello stesso ambiente di reazione.
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Chen, Xu. "Investigation of the Phase transformation in FePtM nanoparticles (M= Ag, Cu) at atomic scale for optimized oxygen reduction catalysis." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC235.

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Les piles à combustible à membrane échangeuse de protons sont prometteuses en tant que nouveaux dispositifs de conversion d'énergie en raison de leur rendement élevé et de leur faible impact sur l'environnement. Cependant, les charges de Pt nécessaires pour compenser la mauvaise cinétique de la réaction de réduction de l'oxygène entravent leurs applications à grande échelle. Récemment, il est devenu possible d'améliorer l'activité des catalyseurs en exploitant des effets géométriques et/ou électroniques. Ainsi, les alliages binaires à base de Pt avec une structure ordonnée ont-ils montré une activité et une durabilité améliorées. Ce travail a étudié des nanoparticules FePtAg et FePtCu ordonnées issues de la synthèse « one‒pot ». Dans FePtAg, nous avons démontré que la transformation vers la structure ordonnée était induite par le dopage Ag; une coercivité de 5.23 kOe et des nanoparticules de FePtAg de taille ultrafine (3.5 ± 0.5 nm) ont été obtenues. Pour les nanoparticules de FePtCu, l’effet d’alliage de Cu s'est avéré constituer la force motrice pour la mise en ordre. En comparaison avec le Pt/C de référence, nos nanoparticules de Cu/FePtCu à structure noyau/coquille optimisées présentent une activité massique 4 fois supérieure avec une atténuation en durabilité de seulement 3% contre 34.2%. Enfin, une activité massique supérieure de 11.7 fois à celle de Pt/C a été obtenue pour des nanoparticules de FePtCu avec une structure cœur/coquille Cu/FePt en forme d’octaèdres tronqués
Proton exchange membrane fuel cells are promising as novel energy conversion devices due to their high efficiency and low environmental impact. However, the platinum loadings needed for compensating the poor kinetics in the oxygen reduction reaction hinder their widespread applications in new energy vehicles and stations. Recently, it has become possible to enhance the catalysts activity based on geometrical and/or electronic effects. In this vein, Pt−based binary alloys with ordered structure have demonstrated enhanced activity and durability, while, contributing to decrease the weight of Pt. In this work, we have investigated ordered FePtAg and FePtCu nanoparticles from one‒pot synthesis, with the objective to develop high performance catalysts by improving their activity and durability. In FePtAg, the phase transition to ordered structure was shown to be induced by Ag doping; a high coercivity of 5.23 kOe and ultrafine size FePtAg nanoparticles (3.5 ± 0.5 nm) has been achieved. For the FePtCu nanoparticles, the Cu alloying effect was found to constitute the driving force for ordering. As related to benchmark Pt/C, our optimized core‒shell structured Cu/FePtCu nanoparticles exhibited a mass activity 4 times higher with only 3 % durability attenuation in contrast to 34.2%. Finally, a mass activity of 11.7 times larger than Pt/C was achieved for optimized FePtCu nanoparticles, with core‒shell Cu/FePt structure and truncated‒octahedron shape
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Isleyen, Alper. "One-pot Synthesis Of Chloroalcohols And Their Lipase Mediated Kinetic Resolution - Ferrocenyl Aziridinylmethanols As Chiral Ligands In Enantioselective Conjugate Diethylzinc Addition To Enones." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608857/index.pdf.

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An unexpected tricyclic ether formation instead of acetate addition to the double bond of a norbornene derivative aroused our interest to explore the mechanism of this reaction. Mechanistic studies showed that methylene diacetate (MDA) was formed in the stock solution (NBu4OAc + dichloromethane) and decomposed to formaldehyde under Lewis or Brø
nsted acid conditions. Formaldehyde and olefin condensation (Prins reaction) clearly explains the formation of the unexpected product. Same methodology was then successfully applied to develop a one-step procedure for the synthesis of 3-chloro-3-arylpropanols, which are important starting materials for the synthesis of biologically active benzanilide derivatives. Styrenes were reacted with MDA in the presence of boron trifluoride to give the corresponding 3-chloro-3-arylpropanols in 36&
#8211
84% yield. The second part of the thesis involves kinetic resolution of 3-chloro-3-arylpropanols by lipase mediated acylation which are described for the first time. Acylation with the CCL provided the best enantioselectivity amongst the enzymes used. Enantiomerically enriched products with up to 78% ee were obtained after two successive lipase-mediated acylations. Different substituents on the aromatic ring and bromide, instead of chloride, at the benzylic position of the substrates were found to have no drastic influence on the enantioselectivity of the reaction. In the last part, easily available ferrocenyl substituted aziridinylmethanols (FAM) were complexed with nickel to catalyze the enantioselective diethylzinc addition to various enones with ee&
#8217
s reaching 82%. The ligands can be recovered and used without losing their activity. The sense of asymmetric induction was found to be dependent on the configuration of the aziridine ring.
9

Ellis, Richard D. "Reductive amination catalysed by iridium complexes." Thesis, University of Sussex, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341064.

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Lorusso, Patrizia. "Metal catalysed alkylation of carbonyl compounds with formaldehyde." Thesis, University of St Andrews, 2015. http://hdl.handle.net/10023/7823.

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Formaldehyde is a chemical used widely in the manufacture of building materials. A remarkable example is represented by the Lucite two-step Alpha technology for the large scale production of methyl methacrylate (MMA), the essential building block of all acrylic-based products. Esters and ketones are important intermediates in the manufacture of acrylate esters therefore α-hydroxymethylenation of carbonyl compounds using formaldehyde as a one carbon alkylating agent and subsequent dehydration to the corresponding methylenated derivatives has been explored in the current work. We report a novel catalytic approach for the synthesis of methyl methacrylate (MMA) via one-pot α-methylenation of methyl propanoate (a chemical intermediate of the ALPHA process) with formaldehyde, generated in situ by Ru-catalysed dehydrogenation of methanol. Elucidation of the mechanism involved in the catalytic dehydrogenation of methanol along with the collateral alcohol decarbonylation reaction was gained through a combined experimental and DFT study. The development of an alternative process where anhydrous formaldehyde is produced in situ would provide a simplification over the current second step of the ALPHA technology where the formaldehyde is initially produced as formalin, subsequently dehydrated to afford anhydrous formaldehyde in order to ensure high selectivity to MMA. As an alternative approach, ketones, in particular 3-pentanone and 2-butanone, were targeted as potential substrates in order to overcome some of the problems related to competing reactions that occur at the ester group. Hydroxymethylenation, followed by dehydration and Baeyer-Villager oxidation, possibly catalysed by enzymes to reverse the normal selectivity, leads to the formation of acrylate esters. The catalytic reaction is enabled by a gold carbene hydroxide complex in such a way that the substrate undergoes C-H activation and the nascent metal alkyl acts as a nucleophile towards the electrophilic formaldehyde, supplied in the form of alcoform* (solution of paraformaldehyde in methanol).
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Book chapters on the topic "One-pot catalysis":

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Gröger, Harald. "Chapter 15. Emerging Fields in One-pot Multi-step Synthesis with Combined Chemo- and Bio-catalysts: Sequential- and Domino-type Process Concepts as well as Compartmentation Strategies." In Catalysis Series, 439–72. Cambridge: Royal Society of Chemistry, 2018. http://dx.doi.org/10.1039/9781788010450-00439.

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Guisnet, Michel, and Matteo Guidotti. "One-Pot Reactions on Bifunctional Catalysts." In Catalysts for Fine Chemical Synthesis, 157–69. Chichester, UK: John Wiley & Sons, Ltd, 2006. http://dx.doi.org/10.1002/0470094214.ch8.

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Kulkarni, Suvarn S. "Regioselective, One-Pot Functionalization of Carbohydrates." In Selective Glycosylations: Synthetic Methods and Catalysts, 255–76. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527696239.ch12.

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Gade, Lutz H., and Solveig A. Scholl. "C-N-Coupling Reactions in Catalytic One-Pot Syntheses Using Molecular Group 4 Catalysts." In Molecular Catalysts, 281–98. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527673278.ch13.

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Sivasubramaniam, Dorairaaj, and Nor Aishah Saidina Amin. "One Pot Synthesis of γ-Valerolactone from D-Glucose Over H3PW12O40/ZrO2 Catalyst." In ICGSCE 2014, 307–13. Singapore: Springer Singapore, 2015. http://dx.doi.org/10.1007/978-981-287-505-1_36.

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Hernandez, J. C., J. A. Perez-Omil, J. J. Calvino, S. Bernal, R. di Monte, S. Desinan, J. Kašpar, and S. Trasobares. "STEM investigation on the one-pot synthesis of nanostructured CexZr1−xO2-BaO·nAl2O3 catalytic materials." In EMC 2008 14th European Microscopy Congress 1–5 September 2008, Aachen, Germany, 271–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-85226-1_136.

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Vijayasankar, A. V., H. Kathyayini, Harikrishna Tumma, and N. Nagaraju. "Mesoporous Iron Aluminophosphate: An Efficient Catalyst for One Pot Synthesis of Amides by Ester-Amide Exchange Reaction." In Ceramic Transactions Series, 127–40. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118491638.ch13.

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Prakash, G. K. Surya, Chiradeep Panja, Clement Do, Inessa Bychinskaya, Habiba Vaghoo, Thomas Mathew, and George A. Olah. "Efficient One-Pot Synthesis of Novel Fluorinated Heterocycles Using Trimethylsilyl Trifluoromethanesulfonate as a Metal-Free Homogeneous Lewis Acid Catalyst." In ACS Symposium Series, 59–83. Washington, DC: American Chemical Society, 2009. http://dx.doi.org/10.1021/bk-2009-1003.ch004.

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Poli, Rinaldo, Si Chen, Xuewei Zhang, Andrés Cardozo, Muriel Lansalot, Franck D’Agosto, Bernadette Charleux, et al. "One-Pot RAFT Synthesis of Triphenylphosphine-Functionalized Amphiphilic Core-Shell Polymers and Application as Catalytic Nanoreactors in Aqueous Biphasic Hydroformylation." In ACS Symposium Series, 203–20. Washington, DC: American Chemical Society, 2015. http://dx.doi.org/10.1021/bk-2015-1188.ch014.

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Sarvar, Mohd, Mohammad Moeen Hasan Raza, Shah Masheerul Aalam, Mohd Sadiq, Mohd Shahid Khan, and Javid Ali. "One-Pot Preparation of Fe/Cu Catalytic Solution for the Growth of Carbon Nanotubes for Use in Gas Sensor and Field Emission Devices." In Springer Proceedings in Physics, 403–10. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1571-8_48.

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Conference papers on the topic "One-pot catalysis":

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Marinič, Dana, Brigita Hočevar, Miha Grilc, and Blaž Likozar. "One-pot Algae Conversion Into Sustainable Biofuel by Catalytic Hydroprocessing." In International Conference on Technologies & Business Models for Circular Economy. University of Maribor Press, 2022. http://dx.doi.org/10.18690/um.fkkt.3.2022.2.

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Abstract:
Microalgae have emerged as a promising feedstock for third generation biofuels. This study aims to investigate the reaction conditions for biodiesel production from microalgae. Microalgae were liquefied and transformed into a mixture of diesel like hydrocarbons using commercial bifunctional NiMo/γ-Al2O3 catalyst. GC-MS analysis revealed that the produced bio-oils are a complex mixtures of partially or completely deoxygenated compounds. The most promising experiment using 25 wt% of catalyst at 350 °C of reaction temperature and 50 bar of initial hydrogen pressure yielded 22.6 wt% of liquid alkanes with the high selectivity towards pentadecane, hexadecane, heptadecane and octadecane.
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Han, Fon Yee, Masaharu Komiyama, Yoshimitsu Uemura, and Nurul Ekmi Rabat. "One pot biodiesel production from wet Chlorella vulgaris using supercritical methanol with oxide catalysts." In PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE ON APPLIED SCIENCE AND TECHNOLOGY (ICAST’18). Author(s), 2018. http://dx.doi.org/10.1063/1.5055447.

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Affeldt, Ricardo F., and Dennis Russowsky. "One-Pot Solvent-Free Synthesis of Polyhydroquinolines Promoted by In/SiO2 Composite Catalyst." In 14th Brazilian Meeting on Organic Synthesis. São Paulo: Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0156-2.

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Thorat, Bapu R., Shravani D. Thakare, Dnyaneshwar Mhaske, and Suraj N. Mali. "One-Pot Synthesis of Knoevenagel Condensation Products Using Boric Acid as a Catalyst." In The 4th International Electronic Conference on Applied Sciences. Basel Switzerland: MDPI, 2023. http://dx.doi.org/10.3390/asec2023-15366.

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Lv, Jing, Liang Jun, Xiangfeng Kong, Lu Cao, Ying Zhang, and Shuwei Zhang. "One-Pot Synthesis of 1, 4-Dihydropyridines in PEG Under Catalyst-Free Conditions." In International Conference on Chemical,Material and Food Engineering. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/cmfe-15.2015.82.

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Ghafuri, Hossein, moghadaseh keshvari, Negar Joorabchi, and Atefeh Emami. "Thiamine: an efficient, biodegradable, green catalyst for one-pot synthesis of functionalized dihydropyridines." In The 20th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2016. http://dx.doi.org/10.3390/ecsoc-20-a039.

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Irmawati, Yuyun, Edwin M. Mauludi, Fredina Destyorini, Andri Hardiansyah, Haryo S. Oktaviano, Agung Nugroho, and Rike Yudianti. "One-pot synthesis of CoFe alloy supported on N-doped carbon as Pt-free oxygen reduction catalysts." In THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIAL AND TECHNOLOGY (ICAMT) 2021. AIP Publishing, 2022. http://dx.doi.org/10.1063/5.0106430.

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Cahyana, A. H., B. Ardiansah, and A. Mubardiani. "CoFe2O4 magnetic catalyst assisted a facile one-pot multicomponent construction of 2,4,5-trisubstituted-1H-imidazole derivatives." In PROCEEDINGS OF THE 3RD INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2017 (ISCPMS2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5064054.

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Naimi-Jamal, Mohammad Reza, maryam hasani, and Leila Panahi. "MCM-41-SO3H as Heterogeneous Catalyst for One-pot Four Component Synthesis of Highly Substituted Pyrroles." In The 20th International Electronic Conference on Synthetic Organic Chemistry. Basel, Switzerland: MDPI, 2016. http://dx.doi.org/10.3390/ecsoc-20-c002.

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Calderón-Rangel, David, Karla A. González Pérez, Alejandro Corona Díaz, and Rocío Gámez-Montaño. "One-Pot Synthesis of Imidazo[2,1-b]thiazole via Groebke–Blackburn–Bienaymé Reaction under Free Catalyts." In ECSOC 2023. Basel Switzerland: MDPI, 2023. http://dx.doi.org/10.3390/ecsoc-27-16095.

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Reports on the topic "One-pot catalysis":

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Bhan, Aditya. One-pot catalytic conversion of biomass and alkanes: Kinetically coupling deoxygenation and dehydrogenation pathways. Office of Scientific and Technical Information (OSTI), June 2018. http://dx.doi.org/10.2172/1507124.

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