Results 51 to 60 of about 127,650 (334)

Lewis acid catalyzed transfer hydromethallylation for the construction of quaternary carbon centers [PDF]

, 2019
The design and gram‐scale synthesis of a cyclohexa‐1,4‐diene‐based surrogate of isobutene gas is reported. Using the highly electron‐deficient Lewis acid B(C6F5)3, application of this surrogate in the hydromethallylation of electron‐rich styrene ...
Oestreich, Martin, Walker, Johannes C. L.   +1 more
core   +1 more source

Gold(I)-Catalyzed Cycloisomerizations and Alkoxycyclizations of ortho-(Alkynyl)styrenes [PDF]

, 2014
Indenes and related polycyclic structures have been efficiently synthesized by gold(I)-catalyzed cycloisomerizations of appropriate ortho-(alkynyl)styrenes.
Fernández Rodríguez, Manuel A., García García, Patricia, Martínez Cuezva, Alberto, Rashid, Muhammad A., Rodríguez, Félix, Sanjuán Cortázar, Ana María, Sanz Díez, Roberto   +6 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Glutathione-triggered disassembly of isothermally responsive polymer nanoparticles obtained by nanoprecipitation of hydrophilic polymers [PDF]

, 2013
The encapsulation and selective delivery of therapeutic compounds within polymeric nanoparticles offers hope for the treatment of a variety of diseases. Traditional approaches to trigger selective cargo release typically rely on polymer degradation which
Abulateefeh, Aleksanian, Cheng, Daniel J. Phillips, Duncan, Duncan, Duncan, Elsabahy, Fernàndez-Trillo, Fu, Fu, Gibson, Govender, Ieong, Joseph P. Patterson, Khorsand Sourkohi, Kim, Klaikherd, Li, Magnusson, Matthew I. Gibson, Musyanovych, Palamoor, Passarella, Peer, Petros, Phillips, Phillips, Putnam, Rachel K. O'Reilly, Saaka, Shah, Shepherd, Summers, Sun, van der Ende, van der Ende, Vert, Wang, Wu, Yang, Zhang   +41 more
core   +1 more source

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Cyclodimerization of Stilbenes and Styrenes Catalyzed by Heteropolyacid Supported on Silica

Molecules, 2000
Several stilbenes and styrenes have been treated with heteropolyacid] (HPA) supported over silice. The compounds obtained were characterized by 1H and 13C- NMR and the yields were compared with those obtained using H2SO4 (c) and ethyl poliphosphate] (PPE)
B. Lantaño, L. Finkielsztein, G. Y. Moltrasio, P. G. Vázquez, C. Caceres, L. R. Pizzio, H. J. Thomas, M. White, J. Aguirre, E. N. Alesso   +9 more
doaj   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Highly regio- and enantioselective multiple oxy- and amino-functionalizations of alkenes by modular cascade biocatalysis

Nature Communications, 2016
Biocatalysis can perform highly selective multi-step synthesis in one pot, but with a limited range of non-natural reactions and products. Here, the authors report regio- and enantioselective bio-cascades, able to convert styrenes into a number of ...
Shuke Wu, Yi Zhou, Tianwen Wang, Heng-Phon Too, Daniel I. C. Wang, Zhi Li   +5 more
doaj   +1 more source

Denitrative Cross-Couplings of Nitrostyrenes

Molecules, 2020
Interestingly, β-nitrostyrenes, typically bench stable compounds, are highly promising cross-coupling partners, due to their excellent availability and well understood reactivity.
Michaela Marčeková, Branislav Ferko, Katarína Ráchel Detková, Pavol Jakubec   +3 more
doaj   +1 more source

Synthesis of Spiro Pyrazolone-Oxindole and Bicyclic Pyrazolone Derivatives via Solvent-Dependent Regioselective Aza-1,4/1,6-Michael and Intramolecular Cycloaddition under Catalyst-Free Conditions

SynOpen, 2021
A solvent-dependent, highly regioselective [3+2]-cyclo­addition reaction of isoxazole-styrenes and azomethine imines under catalyst-free conditions is reported, furnishing a library of pyrazolone–spirooxindole hybrids.
Kota Sathish, Sakkani Nagaraju, Dhurke Kashinath   +2 more
doaj   +1 more source