Results 171 to 180 of about 5,566 (287)

On‐Demand Deconstructable Thermosets Through Cleavable Comonomer and Thermolatent Base Synergy

Angewandte Chemie, EarlyView.
Thermosets, valued for their chemical and mechanical properties, resist recycling due to their cross‐linked structure. Weak bonds via comonomers enable degradability, but diffusion limits effectiveness. We incorporate thermolatent bases before polymerization (thermal or 3D‐VAT printing).
Sophia Kouider, Loic Buchon, Luna Choulot, Paul Greuet, Julie Bratasanu, Patrick Désirée, Jessica Mauriello, Elsa Maarek, Jean‐Louis Clément, Laurence Charles, Emmanuelle Gastaldi, Damien Montarnal, Olivier Soppera, Didier Gigmes, Catherine Lefay, Yohann Guillaneuf   +15 more
wiley   +2 more sources

Controllable copper-catalysed photo-induced carbonylative cyclization to access dihydroquinolinones and oxindoles. [PDF]

Chem Sci
Zhao YH, Wang LC, Wu XF.
europepmc   +1 more source

Mechanistische Diversität in der photoangeregten Radikal‐Redoxchemie: Eine kritische Evaluierung

Angewandte Chemie, EarlyView.
Für viele prominente Beispiele der Photoredox‐Katalyse wird angenommen, dass sie über die Anregung einer offenschaligen („open‐shell“) Zwischenform des Katalysators ablaufen. Es wird jedoch intensiv darüber diskutiert, ob solche Mechanismen realistisch sind und, falls ja, wie genau sie ablaufen können.
Samuel J. Horsewill, Ryan Phelps, Joshua P. Barham, Daniel J. Scott   +3 more
wiley   +1 more source

Covalent Targeting of Histidine Residues: A Ligand-First Approach. [PDF]

J Med Chem
Alboreggia G, Atienza EL, Muzzarelli K, Assar Z, Pellecchia M.   +4 more
europepmc   +1 more source

Supramolecular Mechanophore Additives Enable Mechanochromic Hydrogels

Angewandte Chemie, EarlyView.
A supramolecular loop‐forming mechanophore featuring a quencher and an emitter is incorporated as a water‐soluble macromolecular additive into hydrogels. In the stress‐free state, intramolecular charge‐transfer interactions fold the loop and quench fluorescence.
Iulia Scarlat, Jess M. Clough, Christoph Weder   +2 more
wiley   +2 more sources

Palladium-catalyzed carbonylative synthesis of acrylamides from alkenyl thianthrenium salts. [PDF]

Chem Sci
A RH, Zhang J, Wu XF.
europepmc   +1 more source

Water, Alcohols, Amines, and Amides as Formal Hydrogen‐Atom‐Transfer Reagents Through Activation With Redox‐Active Lewis Acids

Angewandte Chemie, EarlyView.
Protic molecules containing strong O─H or N─H bonds typically resist hydrogen‐atom abstraction because of the high reactivity of the resulting heteroatom‐centered radicals. However, association of the protic molecules with redox‐active Lewis acids can provide powerful hydrogen‐atom donors or proton‐coupled‐electron‐transfer reagents.
Petra Vojáčková, Armido Studer
wiley   +2 more sources

Sulfur‐Boron Lewis Pair‐Catalyzed Hydrohalogenation of Alkynes via Formal Hydrogen Atom Transfer

Angewandte Chemie, EarlyView.
A sulfur‐boron Lewis pair enables the stereodivergent hydrohalogenation of alkynes with exclusive Markovnikov selectivity. Mechanistic studies support a proton transfer‐electron transfer (PT‐ET) sequence for vinyl radical formation rather than a concerted hydrogen atom transfer (HAT) pathway.
Yun Soo Shim, Jin Qian, Sourav Dey, Andrew F. Zahrt, Hyung Min Chi   +4 more
wiley   +2 more sources

Application of a MALDI mass spectrometry assay to identify covalent fragments targeting the methyl-lysine reader protein MPP8. [PDF]

SLAS Discov
Rubiano JLS, Buttery PH, Gurard-Levin ZA, Norris-Drouin JL, Mather LM, Hardy PB, Frye SV, James LI.   +7 more
europepmc   +1 more source

Visible-Light-Mediated Radical Truce-Smiles Rearrangement via Arylazo Sulfones. [PDF]

JACS Au
Di Terlizzi L, Nicchio L, Montinho-Inacio E, Tiwari N, Derat E, Retailleau P, Fagnoni M, Neuville L, Protti S, Masson G.   +9 more
europepmc   +1 more source