Cupin‐Type Dimethylsulfoniopropionate Lyase from Pelagibacter ubique (DddKPu) Catalyzes Aza‐Michael Addition of Primary and Secondary Amines to Acrylic Acid [PDF]
A dimethylsulfoniopropionate lyase (DddK) was identified as an efficient aza‐Michaelase for the addition of amines to acrylate. Screening 74 amines with wild‐type DddK and its W26G variant yielded N‐substituted and N,N‐disubstituted β‐amino acids in 30%–93% isolated yield.
Diletta Arceri +5 more
wiley +3 more sources
Mechanistic Insights and Catalytic Efficiency of a 2,2′‐Bipyridine–Coordinated Peroxidovanadium Complex as a Haloperoxidase Biomimetic [PDF]
A peroxidovanadium(V) complex mimics vanadium haloperoxidases for eco‐friendly halogenation of organic substrates. Density functional theory studies reveal two major reaction pathways for iodide/bromide oxidation. The catalyst offers high‐yield bromination/iodination of 8‐hydroxyquinoline (73/86%) under mild conditions (30 °C, pH 5.8), and it also ...
Lucas G. Fachini +6 more
wiley +2 more sources
Continuous‐Wave (CW) Photo‐CIDNP NMR Spectroscopy: A Tutorial [PDF]
ABSTRACT Photo‐chemically induced dynamic nuclear polarisation (photo‐CIDNP) is a nuclear spin‐selective magnetic resonance phenomenon that has traditionally been used to mechanistically study chemical reactions involving the (transient) formation of radical molecular species, extract EPR observables of short‐lived radicals, probe biomolecular ...
Lars T. Kuhn, Míriam Pérez‐Trujillo
wiley +2 more sources
A utilização da ressonância magnética nuclear em Odontologia: revisão de literatura e relato de caso
Os autores revisam a literatura sobre a utilização da ressonância magnética nuclear em odontologia, seu estágio atual e suas perspectivas futuras, apresentando um caso clínico.
Vinícius D. Dutra +2 more
doaj +9 more sources
Disintegrins are small cysteine-rich proteins found in a variety of snake venom. These proteins selectively modulate integrin function, heterodimeric receptors involved in cell-cell and cell-matrix interaction that are widely studied as therapeutic ...
Ariana A. Vasconcelos +7 more
doaj +1 more source
Unravelling the Mechanistic Pathway of the Hydrogen Evolution Reaction Driven by a Cobalt Catalyst
A CoI complex bearing a redox‐active κ‐N3P2 pentadentate ligand and its activity towards hydrogen evolution reaction is reported in this work. A combination of spectroscopic, electrochemical and computational techniques is employed to characterize the intermediate species, demonstrating an unusual homolytic coupling reaction pathway between two ...
Bing Jiang +10 more
wiley +2 more sources
(Bio)Functionalisation of Metal–Organic Polyhedra by Using Click Chemistry
Copper(I)‐catalysed alkyne‐azide cycloaddition click chemistry is a versatile post‐synthetic tool to functionalize the surface chemistry of alkyne‐functionalized cuboctahedral Metal–Organic Polyhedra (MOPs). This methodology enables quantitative functionalization of MOPs with a wide range of functional groups, including polymers, carboxylic and ...
Laura Hernández‐López +8 more
wiley +1 more source
Synthese von C60/[10]CPP‐Catenanen durch Regioselektive Nanokapsel‐Templierte Bingel Bis‐Addition
Die Kombination von drei Methoden (Tether, Nanohoop‐Template und supramolekulare Schattenmaske) ermöglichte die itero‐ und regioselektive Synthese von [2]Catenanen durch Bis‐Addition von Bis‐Bromomalonaten an den Komplex C60⸦[10]CPP. Die Verwendung einer „spurlosen“ Nanokapsel‐Schattenmaske war der Schlüssel für eine 87 %ige Selektivität für das „in ...
Fabian M. Steudel +7 more
wiley +1 more source
Synthesis of C60/[10]CPP‐Catenanes by Regioselective, Nanocapsule‐Templated Bingel Bis‐Addition
The combination of three approaches (tether, nanohoop template & supramolecular shadow mask) enabled the itero‐ and regioselective synthesis of [2]catenanes via bis‐addition of bis‐bromomalonates to the complex C60⸦[10]CPP. The use of a “traceless” nanocapsule shadow mask was key for obtaining 87 % selectivity for the “in,out‐trans‐3′′ product, where ...
Fabian M. Steudel +7 more
wiley +1 more source
A Polymeric Nanoparticle Formulation for Targeted mRNA Delivery to Fibroblasts
Messenger RNA (mRNA) is a promising tool to deliver therapeutic proteins in many diseases, including fibrotic disorders. Here, a polymeric nanoparticle formulation is developed after high‐throughput screening of 152 polymers in a fibroblast model.
Artur Filipe Rodrigues +6 more
wiley +1 more source

