Results 61 to 70 of about 11,578 (241)

Participation of the Halogens in Photochemical Reactions in Natural and Treated Waters

Molecules, 2017
Halide ions are ubiquitous in natural waters and wastewaters. Halogens play an important and complex role in environmental photochemical processes and in reactions taking place during photochemical water treatment.
Yi Yang, Joseph J. Pignatello
doaj   +1 more source

Synthesis and Reactivity of 3‐Aminosydnones in Cycloaddition Reactions With Alkynes

Chemistry – A European Journal, EarlyView.
The synthesis, functionalization, and reactivity as dipoles of 3‐aminosydnones have been investigated. These neglected compounds undergo smooth cycloaddition reactions with strained alkynes, leading to 1‐aminopyrazoles. ABSTRACT We present in this article the synthesis, functionalization, and properties of 3‐aminosydnones, a forgotten class of ...
Apolline Dominic, Timothée D'anfray, Guillaume Force, David‐Alexandre Buisson, Maxime Tricoire, Alexis Leblais, Davide Audisio, Frédéric Taran   +7 more
wiley   +1 more source

Halogenation Strategies In Natural Product Biosynthesis

, 2008
Halogenation is a frequent modification of secondary metabolites and can play a significant role in establishing the bioactivity of a compound. Enzymatic halogenation through oxidative mechanisms is the most common route to these metabolites, though ...
Fujimori, Danica Galonić, Neumann, Christopher S., Walsh, Christopher T.   +2 more
core   +1 more source

Flipping the Card With Enantiodivergent Organocatalysis

Chemistry – A European Journal, EarlyView.
This minireview elaborates on recent organocatalytic strategies for achieving enantiodivergence—the ability to access both product enantiomers using a single chiral catalyst. It highlights how achiral stimuli, such as solvent polarity and chemical additives, along with minimal catalyst modifications, trigger stereochemical inversions in reactions ...
Debora Iapadre, Alessio Carioscia, Alessandro Brusa, Armando Carlone   +3 more
wiley   +1 more source

Green' and sustainable halogenation processes

, 2016
Halogen atoms have proven both to be some of the most useful functionality available to medicinal chemists, both as handles for further derivatisation and diversification and also due to the beneficial properties they, particularly fluorine, can impart ...
Graham Pattison, Pattison, Graham
core   +1 more source

Modification of the Microstructure and Transport Properties of La2CuO4−δ Electrodes via Halogenation Routes [PDF]

, 2022
dos Santos-Gómez L, Zamudio-García J, Porras-Vázquez JM, R. Losilla E, Marrero-López D. Modification of the Microstructure and Transport Properties of La2CuO4−δ Electrodes via Halogenation Routes. Processes. 2022; 10(6):1206.
José M. Porras-Vázquez, Porras-Vázquez, José Manuel, Marrero-López, David, Santos-Gómez, Lucía dos, Zamudio García, Javier, Ramírez-Losilla, Enrique, David Marrero-López, Dos-Santos-Gómez, Lucía, Losilla, Enrique R., Dos Santos Gómez, Lucía, Porras Vázquez, José M., Zamudio-García, Javier, Marrero López, David, Lucía dos Santos-Gómez, Enrique R. Losilla, Javier Zamudio-García   +15 more
core   +1 more source

Synthesis and biological evaluation of novel N-α-haloacylated homoserine lactones as quorum sensing modulators

Beilstein Journal of Organic Chemistry, 2014
Novel N-α-haloacylated homoserine lactones, in which a halogen atom was introduced at the α-position of the carbonyl function of the N-acyl chain, have been studied as quorum sensing (QS) modulators and compared with a library of natural N-acylated ...
Michail Syrpas, Ewout Ruysbergh, Christian V. Stevens, Norbert De Kimpe, Sven Mangelinckx   +4 more
doaj   +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

Iodine(III)-mediated halogenations of acyclic monoterpenoids

Beilstein Journal of Organic Chemistry, 2018
Five different halofunctionalizations of acyclic monoterpenoids were performed using a combination of a hypervalent iodine(III) reagent and a halide salt.
Laure Peilleron, Tatyana D. Grayfer, Joëlle Dubois, Robert H. Dodd, Kevin Cariou   +4 more
doaj   +1 more source

Next‐Generation Carbon‐Based Anodes for Alkali Metal‐Ion Batteries: Recent Progress on Biphenylene and Emerging Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Recent advances in carbon‐based anodes for alkali metal‐ion batteries are critically reviewed, with emphasis on biphenylene and other emerging carbon allotropes. Biphenylene exhibits exceptional theoretical electrochemical properties beyond conventional graphite, highlighting its strong potential as a next‐generation anode material once scalable ...
Adewale Hammed Pasanaje, Nirpendra Singh
wiley   +1 more source