Results 31 to 40 of about 4,036 (208)
Postsynthetic modification of zirconium metal-organic frameworks [PDF]
, 2016 Metal-organic frameworks (MOFs) have been in the spotlight for a number of years due to their chemical and topological versatility. As MOF research has progressed, highly functionalised materials have become desirable for specific applications, and in ...
Forgan, Ross S., Marshall, Ross J.
core +1 more source
Pharmaceuticals Made with Hydrogen: A Sustainable and Efficient Approach Using Flow Synthesis
Chemistry – A European Journal, EarlyView.We demonstrate a sustainable strategy for pharmaceutical manufacturing by combining hydrogen, heterogeneous catalysis, and continuous flow synthesis. The development of novel catalysts and their application in a multi‐step synthesis of donepezil enabled a highly productive process with no intermediate purification.
Shū Kobayashi, Haruro Ishitani
wiley +1 more source
Journal of Enzyme Inhibition and Medicinal Chemistry, 2019 Novel hydroxyl-substituted double Schiff-base 4-piperidone/cyclohexanone derivatives, 3a–e, 4a–e, 5a–d, and 6a–c, were synthesized and fully characterized by 1H NMR, IR and elemental analysis.
Lianshuang Zhang +4 more
doaj +1 more source
Synthesis of Cyclohexanone Oxime from Cyclohexanone and Ammonia.
Journal of The Japan Petroleum Institute, 1999 シクロヘキサノンとアンモニアのみを原料とするシクロヘキサノンオキシムの合成を検討した結果, Na-ZSM-5が高い活性を示すことを見い出した。この触媒の活性サイトは触媒上の塩基点であると考えられる。主な副生成物は, アルドール脱水縮合反応を経由して生成するピリジンの誘導体であった。反応温度, 反応時間, 原料組成比などを最適化することにより, 高いシクロヘキサノンオキシム選択率を得ることができた。
Li FAN, Jialing LIU, Kaoru FUJIMOTO
openaire +2 more sources
Oxidative aromatization of olefins with dioxygen catalyzed by palladium trifluoroacetate [PDF]
, 2008 Molecular oxygen can replace sacrificial olefins as the hydrogen acceptor in the palladium trifluoroacetate catalyzed dehydrogenation of cyclohexene and related cyclic olefins into aromatics.
Bercaw, John E. +2 more
core
Enantioselective aldol reactions with aqueous 2,2-dimethoxyacetaldehyde organocatalyzed by binam-prolinamides under solvent-free conditions [PDF]
, 2014 Aqueous 2,2-dimethoxyacetaldehyde (60% wt solution) is used as an acceptor in aldol reactions, with cyclic and acyclic ketones and aldehydes as donors, organocatalyzed by 10 mol % of N-tosyl-(Sa)-binam-l-prolinamide [(Sa)-binam-sulfo-l-Pro] at rt under ...
Bañón Caballero, Abraham +3 more
core +2 more sources
Cationic Sulfonium‐Based Tripodal Ligand and Its Rh(I) Complexes
Chemistry – A European Journal, EarlyView.We report a cationic EP3‐type tripodal ligand based on an aromatic sulfonium cation (E = S+) along with a series of its Rh(I) complexes. Structural, spectroscopic, electrochemical, and computational analyses of these complexes compared to isostructural analogs (E = Si− or P) reveal pronounced electron density depletion at Rh in the sulfonium congener ...
Nitsan Barel +5 more
wiley +1 more source
Chiral Sulfinamide/Achiral Sulfonic Acid Cocatalyzed Enantioselective Protonation of Enol Silanes [PDF]
, 2011 The application of chiral sulfinamides and achiral sulfonic acids as a co-catalyst system for enantioselective protonation reactions is described. Structurally simple, easily accessible sulfinamides were found to induce moderate-to-high eeʼs in the ...
Beck, Elizabeth M. +2 more
core +1 more source
Photolytic Hydrophosphination: Insights Into Catalyzed and Uncatalyzed Processes
Chemistry – A European Journal, EarlyView.Catalyst‐free photolytic hydrophosphination is demonstrated for vinyl arenes and activated alkenes in polar protic (alcohol) solvents. These reactions appear to be closed‐shell, affirming that even ambient light can impact a reaction—a potentially broad influence on even mundane reactions.
Emma J. Finfer +2 more
wiley +1 more source
The Mechanism of Addition of Diazo-alkanes to Cyclopropanones [PDF]
, 1969 The addition of diazo-alkanes to cyclopropanones yields cyclobutanones whose structures may be predicted on the basis of conformational regulation of the migrating carbon-carbon ...
Gagosian, Robert B., Turro, Nicholas J.
core +2 more sources