Results 141 to 150 of about 157,130 (323)

Plasmonic Hot‐Carrier Redox Enables Proton‐Coupled Electron Transfer at C─H Bonds

Angewandte Chemie, EarlyView.
Plasmonic hot carriers provide unprecedented control over coupled electron–proton transfer, enabling visible‐light activation of strong C─H bonds. Using an energy‐filter electrode, we reveal a stepwise electron‐then‐proton pathway and directly tune the underlying driving forces.
Daniel Velev Latchev, Arthur Andreis, Julian Michael Heeg, Jacinto Sá   +3 more
wiley   +1 more source

A Crystalline Mono‐Coordinate Indium(I)‐Phosphaalkenyl

Angewandte Chemie, EarlyView.
The redox neutral carbometallation of a phospha‐alkyne using the dimeric indium(I) compound (InTer)2 is reported. This reaction affords a mono‐coordinate indium(I) compound that can reversibly extrude the phospha‐alkyne upon addition of a Lewis acid. Abstract The synthesis of the mono‐coordinate indium(I) compound In[C(Ad)═PTer] (Ad = 1‐adamantyl, Ter =
Álvaro García‐Romero, Maren Pink, Israel Fernández, Jose M. Goicoechea   +3 more
wiley   +2 more sources

REACTION DE CYCLOADDITION DIPOLAIRE-1,3 DES ARYLNITRILOXYDES VIS A VIS DES4-ISOPROPYL-2-[(E)-ARYLIDENE]- 3,4-DIHYDRO-1(2H) NAPHTALENONES

, 2015
Ghali Al Houari, A. Bennani, Maria Daoudi, N. Benlarbi, Mohamed El Yazidi, B. Guarrigues, Abdelali Kerbal   +6 more
openalex   +1 more source

Enantioselective NHC‐Catalyzed Redox [2+2] Cycloadditions with Perfluoroketones: A Route to Fluorinated Oxetanes [PDF]

, 2015
Alyn T. Davies, Alexandra M. Z. Slawin, Andrew D. Smith   +2 more
openalex   +1 more source

Unnatural Amino Acid and Emerging Chemistry Approaches to Map RNA–Protein Interactions

Angewandte Chemie, EarlyView.
This review highlights emerging chemistries for mapping RNA–protein interactions, including genetically encoded unnatural amino acids, novel photocrosslinkers, and non‐photoactivatable crosslinking systems. We compare their mechanisms, reactivity and applications, outlining how these next‐generation tools enable higher‐resolution, site‐specific ...
Eryn Lundrigan, Parrish Evers, Elexa Scott, John Paul Pezacki   +3 more
wiley   +1 more source

Programmable Nanoscale Motion via Molecular Patterning on DNA Origami

Angewandte Chemie, EarlyView.
DNA origami nanorods enable precise urease placement with tunable coverage and asymmetry, revealing that propulsion depends on a balance of catalytic loading and geometry. Maximum speed occurs at ∼25% end‐coverage and declines as enzyme distribution becomes more symmetrical.
Lars Paffen, Maurik Engelbert van Bevervoorde, Andoni Rodriguez‐Abetxuko, Loai Abdelmohsen, Remco van der Hofstad, Jan C.M. van Hest, Tania Patiño Padial   +6 more
wiley   +2 more sources

Strahlenchemische Cycloadditionen mit Äthylen und Acetylen (Produktbildung und Lösungsmittelwahl) / Radiation Chemical Cycloaddition Reactions with Ethylene and Acetylene [PDF]

, 1977
Manfred J. Mirbach, Marlis F. Mirbach, Alfons Saus   +2 more
openalex   +1 more source

Tetraaza[7]–[15]helicenes Synthesized by Two‐Step Strategy: Length‐Controlled Chiral π‐Systems Exhibiting Amplified Circularly Polarized Luminescence

Angewandte Chemie, EarlyView.
A modular two‐step strategy provides tetraaza[n]helicenes (n = 7–15) as a homologous series with tunable photophysical and chiroptical properties. Extension beyond n = 11 induces pronounced through‐space π–π interactions, narrowing the energy gap and amplifying circularly polarized luminescence.
Takashi Otani, Yuchen Wu, Kohei Ueda, Yuki Ikeda, Yuna Tada, Natsuna Kinoshita, Takanori Shibata   +6 more
wiley   +2 more sources

Silaheterocyclen, XXVII. Substituenteneffekte zur Steuerung des Cycloadditionsverhaltens von Silaethenen [1] / Silaheterocycles, XXVII. Controlling the Cycloaddition Behavior of Silenes by Substituent Effects [1] [PDF]

, 1994
Norbert Auner, Carola Wagner, Wolfgang Ziehe, P H -C H, P H -C H ), H =chbu, P H -C H, C H, C, P H -C H, P H -C H, N Sewald, W Ziehe, A Wolff, N Auner, R Raabe, J Michl, N Wiberg, A Brook, W Chatterton, R Kumarathasan, N Auner, C Seidenschwarz, N Sewald, E, N Auner, C Seidenschwarz, N Sewald, W Ziehe, C Seidenschwarz, N Auner, E Herdt Weck, N Sewald, W Ziehe, V Popkova, C Seidenschwarz, N Auner, N Sewald, N Auner, N Auner, N Auner, C Seidenschwarz, N Auner, C Seidenschwarz, E Herdtweck, C.-R Auner, C Heikenwlder, Wagner, N Auner, A Wolff, N Auner, A Weingartner, G Bertrand, W Ziehe, N Auner, J Behm, H.-U Siehl, F.-P Kaufmann, Y Peloig, V Brauche, D Danovich, A Berndt, N Stamatig, K, M Gordon, G.-T Wang, J Lambert, N Auner, R Gleixner, P Jones, T Lim, P Jones, T Lim, N Auner, W Ziehe, E Herdtweck, L Paquette, M Kesselmayer, H Knzer, ; Zur Nomenklatur, N Auner, Kiprof, N Auner, C.-R Heikenwlder, W Ziehe, N Auner, J Sauer, R Sustmann   +87 more
openalex   +1 more source

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