Results 61 to 70 of about 38,114 (261)

Synthesis of Dithienylcycloalkene Molecular Switches Enabled by a Bench‐Stable Ti‐Complex

Chemistry – A European Journal, EarlyView.
Herein we report a set of cycloalkene‐bridged DTEs with ring sizes ranging from 4‐ to 7‐membered rings. The synthesis of these analogs was performed via a key McMurry coupling step, which was enabled by a practical, bench‐stable Ti(IV)‐complex. Remarkably, it is shown that the strained cyclobutene bridge outperforms other rings, even the most commonly ...
Marcell M. Bogner, Márton Hegedűs, Péter P. Kalapos, Attila Kunfi, Gábor London   +4 more
wiley   +1 more source

Catalytic constructive deoxygenation of lignin-derived phenols: new C-C bond formation processes from imidazole-sulfonates and ether cleavage reactions [PDF]

, 2014
Funding: UK Engineering and Physical Sciences Research Council (EPSRC)As part of a programme aimed at exploiting lignin as a chemical feedstock for less oxygenated fine chemicals, several catalytic C-C bond forming reactions utilising guaiacol imidazole ...
Clarke, Matthew L., Harkness, Gavin J., Leckie, Stuart M.   +2 more
core   +2 more sources

Photochemistry of Aromatic N‐Oxides in Water Probed by Time‐Resolved X‐ray Absorption Spectroscopy

Chemistry – A European Journal, EarlyView.
Time‐resolved XAS at the nitrogen and oxygen K‐edges is applied to the photorearrangement of two N‐oxides in water. Pyridine N‐oxide rapidly forms the oxaziridine isomer. Pyridazine N‐oxide undergoes ring opening to the diazo compound, without any evidence of intermediates.
Maximilian Paradiz Domínguez, Robby Büchner, Mattis Fondell, Albert M. Brouwer   +3 more
wiley   +1 more source

Bifunctional Photocatalysts: Exploiting Proximity for Enhanced Reaction Performance

Chemistry – A European Journal, EarlyView.
This review covers the application of the bifunctional approach to photocatalysis as a means to attain (enhanced) enantioselectivity, and, more in general, as a strategy to enhance the catalytic performance through an effective use of short‐lived reaction intermediates.
Luigi Dolcini, Daniele Lavelli, Alberto Dal Corso, Luca Pignataro   +3 more
wiley   +1 more source

Coupled electronic and morphologic changes in graphene oxide upon electrochemical reduction [PDF]

, 2015
Peer ...
Angel Cuesta, Ernesto C. Pereira, Fernando C. Moraes, Luiz F. Gorup, Renato G. Freitas, Rodrigo Pereira   +5 more
core   +1 more source

A General Strategy for the Synthesis of Jerangolids Enabled by π‐allyl Stille Coupling

Chemistry – A European Journal, EarlyView.
A general strategy for the synthesis of jerangolids is established, featuring a late‐stage π‐allyl Stille coupling of two advanced, highly customizable building blocks to form the skipped diene core. The approach provides access to all naturally occurring jerangolids, including jerangolid H, whose configuration is confirmed by NMR analysis.
Janick Schug, Bernd Morgenstern, Johann Jauch   +2 more
wiley   +1 more source

Stability of Li-LSX Zeolite in the Catalytic Pyrolysis of Non-Treated and Acid Pre-Treated Isochrysis sp. Microalgae

Energies, 2020
This paper investigates the use of Li-LSX-zeolite catalyst over three regeneration cycles in presence of non-treated and acid pre-treated Isochrysis sp. microalgae.
Nur Adilah Abd Rahman, Javier Fermoso, Aimaro Sanna   +2 more
doaj   +1 more source

Glacial CO₂ decrease and deep-water deoxygenation by iron fertilization from glaciogenic dust [PDF]

Climate of the Past, 2019
Increased accumulation of respired carbon in the deep ocean associated with enhanced efficiency of the biological carbon pump is thought to be a key mechanism of glacial CO2 drawdown.
A. Yamamoto, A. Yamamoto, A. Abe-Ouchi, A. Abe-Ouchi, R. Ohgaito, A. Ito, A. Oka   +6 more
doaj   +1 more source

When Light Challenges Heat: Mechanistic Insights Into a Reaction Competing With Cadogan Cyclisation in Nitro‐Perylenediimides

Chemistry – A European Journal, EarlyView.
Visible‐light irradiation of nitro‐perylenediimide in the presence of triphenylphosphine reveals an unexpected pathway competing with the classical Cadogan cyclization. Mechanistic investigations uncover the rapid and selective formation of bay‐functionalized 1‐iminophosphorane‐12‐hydroxy perylenediimide derivatives.
Manuel Pedrón Laserna, Ilaria Ciofini, Piétrick Hudhomme   +2 more
wiley   +1 more source

Mid-temperature CO2 deoxygenation to CO over Fe-CeO2

Journal of CO2 Utilization
CO2 capture and utilization is a must for easing the global warming caused by the uses of fossil fuels. We examine M-CeO2 (M = Cu, Co, and Fe @M/Ce = 2/8) prepared by coprecipitation and hard template synthesis.
Jing-Ting Huang, Ruo-Yun Lin, Tzu-Hsun Tsai, Tzu-Peng Lin, Shawn D. Lin   +4 more
doaj   +1 more source