Results 221 to 230 of about 64,062 (284)

Silicon Carbide/Poly(Butadiene-Nitrile) Composite Monolith as a Prospective Material for Passive Sampling of Hydrocarbons Following by Thermal Desorption and Gs/Ms Determination

, 2022
E. S. Markova, А. В. Пирогов, A. N. Furman, Aleksandr Popov, О. А. Шпигун, Mikhail V. Popik, Pavel N. Nesterenko, Andrey A. Stepashkin   +7 more
openalex   +1 more source

Dynamic Confinement Approach for High Metal Loading Single‐Atom Catalysts Based on Covalent Organic Frameworks

Angewandte Chemie, EarlyView.
We introduced a new synthetic strategy for the preparation of high metal loading crystalline single‐atom catalysts based on covalent organic frameworks with atomically distributed Pd ions and metal contents of up to 22.2 wt%. Theoretical simulations reveal that the crystalline framework dynamically confines Pd atoms between different binding sites ...
Kyung Seob Song, Murad Najafov, José Manuel González Acosta, Andrea Ruiz Ferrando, Stephan Pollitt, Patrick W. Fritz, Timur Ashirov, Krzysztof Piech, Felipe Gándara, Maarten Nachtegaal, Núria López, Ali Coskun   +11 more
wiley   +2 more sources

Relationship between ices and gas phase organic compounds in simulated extraterrestrial environments. [PDF]

Commun Chem
Javelle T, Duvernay F, Ruf A, Granjon C, Selliez L, Danger G.   +5 more
europepmc   +1 more source

Stereo- and Regioselectivity in Nitrile Oxide Cycloaddition Reactions to Norethisterone Acetate as Dipolarophile

Paolo Quadrelli, Giuseppe Faita, Mariella Mella   +2 more
openalex   +1 more source

Nickel-Catalyzed Cyanation of Aryl Halides. [PDF]

Molecules
Ma Z, Huo C, Zhou D, Zhang J, Kong H, Ren W, Qu F, Liu T, Chen H, Wang X.   +9 more
europepmc   +1 more source

Temperature‐Responsive Near‐Infrared Emission Enabled by Reversible π‐Umpolung with an Alkenyl‐Strapped Diarylboryl Unit

Angewandte Chemie, EarlyView.
Coordination of a Lewis base switches an electron‐accepting tricoordinate boron center into an electron‐donating tetracoordinate one. An alkenyl‐strapped diphenylthienylboryl π‐system undergoes phosphine‐induced reversible π‐umpolung, where transformation from an acceptor–acceptor–acceptor framework to a donor–acceptor–donor system gives rise to ...
Satoru Kitamura, Mika Sakai, Shigehiro Yamaguchi   +2 more
wiley   +2 more sources

Modular Access to Quaternary α‑Cyano Carbonyl Compounds via NiH Catalysis. [PDF]

JACS Au
Lee Y, Jung Y, Choo S, Shin K.
europepmc   +1 more source

Reaction mechanism of iron-type nitrile hydratase

, 2000
Maki Tsujimura, Masafumi Odaka, Mikio Hoshino, Il-seok Lee, Y. KOBAYASHI, T. Ohkouchi, Itaru Endo   +6 more
openalex   +2 more sources

Alkinyltriazene in photochemischen metallfreien Doyle‐Kirmse‐Umlagerungen

Angewandte Chemie, EarlyView.
Es wird eine metall‐ und additivfreie photokatalytische Doyle‐Kirmse‐Reaktion von Alkinyltriazenen beschrieben, die über Cyancarbenzwischenstufen verläuft. Diese Strategie ermöglicht den effizienten Aufbau hochsubstituierter asymmetrischer Kohlenstoffzentren mit breitem Substratspektrum und liefert synthetisch wertvolle Nitrile.
Ningning Liu, Linus Bjarne Dittmer, Melina Maag, Elena Michel, Frank Rominger, Matthias Rudolph, Andreas Dreuw, A. Stephen K. Hashmi   +7 more
wiley   +1 more source

Boosting the Nucleophilicity of the Diphenylphosphide Anion with Crown Ether Supported Heavy Alkali Metals to Facilitate Highly Efficient Catalytic Alkene Isomerisation

Angewandte Chemie, EarlyView.
Here, we report a breakthrough study in catalytic alkene isomerisation using crown ether‐supported alkali metal phosphides in which the activity increases sequentially and significantly as Group One is descended with Cs(18‐crown‐6)PPh2 (1Cs) performing best.
Felix Krämer, Thomas M. Horsley Downie, Robert E. Mulvey   +2 more
wiley   +2 more sources