Results 181 to 190 of about 2,593,431 (288)

Effect of Alkyl Chain Length and Hydroxyl Substitution on the Antioxidant Activity of Gallic Acid Esters. [PDF]

Molecules
Chen Q, Cui S, Zhang W, Dong G, Tang B, Ma J, Xu J, Zhang J, Liu L.   +8 more
europepmc   +1 more source

Nitrooxylation in Organic Synthesis: From Classical Nitrate Ester Formation to Modern Catalytic Strategies

Chemistry – A European Journal, EarlyView.
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley   +1 more source

Highly Selective Continuous Production of Furfural from Xylose Diboronate Esters: Theoretical Modeling and Experimental Proof. [PDF]

ACS Omega
van der Wal PJ, Lange JP, Kersten SRA, Ruiz MP.   +3 more
europepmc   +1 more source

Fluorogenic Sydnones for Bioorthogonal Labeling of DNA

Chemistry – A European Journal, EarlyView.
Conjugates of sydnones with cyanine‐styryl dyes combine bioorthogonal reactivity with fluorogenicity. The reactivity with bicyclo[6.1.0]non‐4‐yne (BCN)‐modified DNA showed second‐order rate constants of up to k2 = 2,300 M−1s−1 and fluorescence turn‐on by one magnitude of order.
Kerstin Müller, Hans‐Achim Wagenknecht   +1 more
wiley   +1 more source

First Report of Δ5,8,11,14,17-Octadecapentaenoic Acid (18:5n-1) in Diatoms (Bacillariophyceae: Thalassiosirales). [PDF]

Lipids
Chadova K.
europepmc   +1 more source

A Selectfluor‐based Polonovski Rearrangement Leading to Novel Entities for Synthetic and Medicinal Applications

Chemistry – A European Journal, EarlyView.
Starting from carboxylic acids and Selectfluor‐derivatives, functionalized diazabicyclooctanes can be obtained via a novel Polonovski‐type rearrangement proceeding under mild reaction conditions. Besides their use in organic synthesis the unique structure and reactivity of the rearrangement products enables applications in medicinal chemistry ...
Jakob Kuhn, Susanne Gradl, Vanessa Osterloh, Peter Gmeiner, Harald Hübner, Markus R. Heinrich   +5 more
wiley   +1 more source

Uncovering Bioactive Compounds in Propolis Extracts Prior to Isolation Through NMR Chemometric Analysis. [PDF]

Molecules
Stavropoulou MI, Cheilari A, Graikou K, Chinou I, Aligiannis N.   +4 more
europepmc   +1 more source

Oxidation of Allylic Alcohols by Manganese Oxides: Elucidating the Influences of MnOx Structure and Mn Oxidation State on Reactivity

Chemistry – A European Journal, EarlyView.
Manganese oxides (MnOX) of different structures and with different Mn oxidation states exhibit significant variation in their reactivity toward the oxidation of allylic alcohols. Using two allylic alcohol model substrates, we demonstrate the relationship between activity and MnOX structure, Mn4+ content and incorporated secondary cations.
Erdogan Kasisari, Leandra Meyer, S. Esmael Balaghi, Harald Scherer, Patrick Elsässer, Anna Fischer, Philipp Kurz   +6 more
wiley   +1 more source

Nitrogen deprivation differentially alters lipid accumulation and pyrolysis-derived volatile profiles in three microalgal species. [PDF]

Bioresour Bioprocess
Garza-León CV, Correa-Aguado HC, Cerrillo-Rojas GV, Martínez RR, Gómez-García O, Salgado-Transito I.   +5 more
europepmc   +1 more source

Hybrid Macrocyclic Peptides — Synthetic Strategies to Diversify and Cyclize Peptide Libraries in Phage Display Selections

Chemistry – A European Journal, EarlyView.
Hybrid macrocyclic peptides unite genetically encoded peptide libraries with the structural complexity of synthetic small molecules. This Review critically analyzes phage‐compatible cyclization and diversification chemistries, highlights emerging opportunities beyond traditional cysteine‐based approaches, and outlines how future advances may enable the
Titia Rixt Oppewal, Clemens Mayer
wiley   +1 more source