Results 31 to 40 of about 3,977 (186)
Advanced Science, EarlyView.Utilizing molecular engineering for network design, three pesticide‐loaded organogels (PLOs) carriers exhibiting varying degrees of flexibility were prepared. The mechanical properties of these carriers, tunable via their network molecular structures, enhance their structural adaptability and retention stability at biological interfaces, thereby ...
Yue Wang +6 more
wiley +1 more source
A palladium-catalysed enolate alkylation cascade for the formation of adjacent quaternary and tertiary stereocentres [PDF]
, 2010 The catalytic enantioselective synthesis of densely functionalized organic molecules that contain all-carbon quaternary stereocentres is a challenge to modern chemical methodology.
A Chieffi +31 more
core +3 more sources
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
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
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
Oxidation of acyclic alkenes and allyl and benzyl ethers with DIB/t-BuOOH/Mg(OAc)
, 2012 Oxidation of (11Z)-1′,2′-didehydrostemofoline with DIB/TBHP/Mg(OAc)2·4H2O resulted in oxidative cleavage of the C-11-C-12 double bond instead of the desired allylic oxidation of the 1-butenyl side chain. Stemofoline gave a similar result.
Pyne, SG, Sastraruji, T, Ung, AT
core +1 more source
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Two hydrophobic DESs, lidocaine/oleic acid and lidocaine/decanoic acid, were utilized as reaction media that were enzyme‐compatible and highly substrate‐solubilizer for carbonyl reduction catalyzed by horse liver alcohol dehydrogenase, focusing on the effect of water contents and on maximizing substrate loadings, which showcases for the first time the ...
Ningning Zhang +6 more
wiley +1 more source
Multi‐Dimensional Conductive Nanocomposites for Flexible Electronics
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Multi‐dimensional conductive nanocomposites integrate 0D, 1D, and 2D nanomaterials through spatial structure regulation and interface engineering, achieving “1 + 1 > 2” synergistic effects. By leveraging 0D filling to reduce contact resistance, 1D bridging to construct continuous conductive paths, and 2D supporting to enhance mechanical stability ...
Tianyu Wang +12 more
wiley +1 more source
1,3-Dicarbonyl compounds in stereoselective domino and multicomponent reactions
, 2010 International audienceModern organic synthesis focuses on the discovery and the development of stereoselective multiple bond-forming transformations allowing the creation of several covalent bonds in a single operation.
Bonne, Damien +3 more
core +4 more sources
Cooperative effects between arginine and glutamic acid in the amino acid catalyzed aldol reaction [PDF]
, 2017 Catalysis of the aldol reaction between cyclohexanone and 4-nitrobenzaldehyde by mixtures of L-Arg and of L-Glu in wet DMSO takes place with higher enantioselectivity (up to a seven-fold enhancement in the anti- aldol for the 1:1 mixture) than that ...
Moyano i Baldoire, Albert +1 more
core +1 more source