Results 81 to 90 of about 3,194 (256)

Electrochemical selenium- and iodonium-initiated cyclisation of hydroxy-functionalised 1,4-dienes

Beilstein Journal of Organic Chemistry, 2015
The cobalt(I)-catalysed 1,4-hydrovinylation reaction of allyloxytrimethylsilane and allyl alcohol with substituted 1,3-dienes leads to hydroxy-functionalised 1,4-dienes in excellent regio- and diastereoselective fashion.
Philipp Röse, Steffen Emge, Jun-ichi Yoshida, Gerhard Hilt   +3 more
doaj   +1 more source

Long‐Term Hydrophilic, Anti‐Clotting, and Anti‐Fibrotic Dynamic Covalent Silicone‐Based Biomaterials

Advanced Healthcare Materials, EarlyView.
Dynamic covalent crosslinking of a Schiff‐base silicone elastomer with hydrazide‐functionalized polymers is demonstrated to improve the long‐term hydrophilicity as well as the anti‐fouling and anti‐clotting properties of PDMS implants. The hydrazone‐functionalized material prevents hydrophobic recovery, resists clotting, and significantly reduces ...
Norma A. Garza Flores, Eva Mueller, Robert Bui, James C. Fredenburgh, Ruiqi Yin, Rawaa Hussain, Rida A. Malik, Thomas Kalab, Dabeer Abdul‐Azeez, Fei Xu, Michael Brook, Jeffrey I. Weitz, Todd Hoare   +12 more
wiley   +1 more source

Triple Ring Closing Metathesis Reaction:  Synthesis of Adjacent Cyclic Ethers

, 2016
Adjacent tris(cyclic ethers) and enol ethers have been synthesized in good yields for the first time via a triple olefin metathesis reaction using Grubbs' catalyst RuCl2(C(H)Ph)(PCy3)2 (Cy = cyclohexyl), and the 1,3-dimesitylimidazol-2-ylidene ruthenium
Christophe Baylon (2709916), Marie-Pierre Heck (1997698), Charles Mioskowski (2301244), Steven P. Nolan (1489711)   +3 more
core   +1 more source

Synthesis of Five-Membered Cyclic Ethers by Reaction of 1,4-Diols with Dimethyl Carbonate [PDF]

, 2012
The reaction of 1,4-diols with dimethyl carbonate in the presence of a base led to selective and high-yielding syntheses of related five-membered cyclic ethers. This synthetic pathway has the potential for a wide range of applications. Distinctive cyclic
Fabio Aricò, Pietro Tundo, Andrea Maranzana, Glauco Tonachini, Maranzana, Andrea, ARICO', Fabio, Tonachini, Glauco, TUNDO, Pietro, Andrea Maranzana, Glauco Tonachini   +9 more
core   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source

Electrochemical Study of Diphenyl Ether Derivatives Used as Herbicides

International Journal of Electrochemistry, 2011
The electrochemical behaviour of five nitro diphenyl ethers used as herbicides is investigated in acetonitrile. A detailed study by cyclic voltammetry and exhaustive electrolysis is carried out for the anodic oxidation of 2-Chloro-6-nitro-3 ...
Amira Zaouak, Fatma Matoussi, Mohamed Dachraoui   +2 more
doaj   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Visible-light-induced radical-cascade alkylation/cyclization of N-methacryloyl-2-phenylbenzimidazole: Access to benzoimidazo[2,1-a]isoquinolin-6(5H)-ones

Green Synthesis and Catalysis
A metal-free visible-light-induced synthesis of aza-polycyclic aromatic hydrocarbons via cascade alkylation/cyclization of N-methacryloyl-2-phenylbenzimidazole was developed.
Yanhong Wang, Xinlei Zhou, Tao Zhang, Xinxin Ren, Wei Xu, Bin Wang, Weiwei Jin, Yu Xia, Chenjiang Liu, Yonghong Zhang   +9 more
doaj   +1 more source

Cyclic ether

, 2013
A process for preparing cyclic ethers is described. The process involves the reaction of at least one organic compound such as diols or polyol which it has at least one pair of hydroxyl groups separated by 5 or 5 carbon atoms, and which is capable of being converted into an ether linkage, with an organic carbonate in the presence of a base. The base is
H. Bevinakatti, C. Newman, S. Ellwood, TUNDO, Pietro, ARICO', Fabio, M. Schroeder   +5 more
openaire   +1 more source