Results 111 to 120 of about 25,792 (269)

Halogenierung und Acyloxylierung von N-Cyclohex-2-en-1-on-3-yl-aminosäuren / Halogenation and Acyloxylation of N-Cyclohex-2-en-1-on-3-yl-amino Acids [PDF]

, 1991
Gerhard Habermehl, Irene Wippermann, Hans Chr. Krebs, Susanne tom Dieck   +3 more
openalex   +1 more source

Halogenation of Li₇La₃Zr₂O₁₂ solid electrolytes: a combined solid-state NMR, computational and electrochemical study

, 2022
Bo Dong, Abby R. Haworth, Stephen R. Yeandel, Mark P. Stockham, M. S. James, Jingwei Xiu, Dawei Wang, Pooja Goddard, Karen E. Johnston, Peter R. Slater   +9 more
openalex   +2 more sources

Complete Series of 1,2‐Bis(trihalogenosilyl)benzenes (F, Cl, Br, I): A Platform for Cooperating Lewis‐Acidic Sites in Close Quarters

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The complete series of 1,2‐bis(trihalogenosilyl)benzenes with F, Cl, Br, and I is synthesized and structurally characterized. The fluorinated compound binds up to two F− ions, one of them in a bridging mode. BBr3‐induced cyclization of an alkoxylated precursor affords a tetrahalogenated 1,3‐disila‐2‐oxaindane, highlighting cooperative reactivity of ...
Moritz Schmidt, Niklas H. H. Hürtgen, Alexander Virovets, Hans‐Wolfram Lerner, Matthias Wagner   +4 more
wiley   +1 more source

Deciphering the biosynthetic pathways of lichen acids

New Phytologist, EarlyView.
Summary Depsides and depsidones are polyketide‐derived lichen acids widely distributed in lichen thalli, yet the biosynthetic gene clusters (BGCs) responsible for their production remain poorly understood. To address this gap, we investigated the diversity and evolutionary relationships of polyketide BGCs in lichens.
Wonyong Kim, Tânia Keiko Shishido, Huong T. Pham, Kyo Bin Kang, Rundong Liu, Matti Wahlsten, Jérôme Collemare, Hyun Park, Soon‐Ok Oh, Hyung‐Ho Ha, Hangun Kim, Jae‐Seoun Hur   +11 more
wiley   +1 more source

Myths and Truths About Electrophilic Aromatic Substitution: The Particular Case of Fluorobenzene

Journal of Physical Organic Chemistry, Volume 39, Issue 2, February 2026.
Nitration σ‐complex formation is exothermic, and halogens—particularly fluorine—enhance para reactivity, challenging traditional descriptions of halogens as purely deactivating in EAS. ABSTRACT Electrophilic aromatic substitution (EAS) is a fundamental reaction introduced early in organic chemistry courses, highlighting the influence of substituents on
Francisco A. Martins, Matheus P. Freitas   +1 more
wiley   +1 more source

Tyrosine halogenation converts α-defensins into potent immunomodulators [PDF]

, 2023
A Foti, Robert Hurwitz, Kathrin Textoris‐Taube, Michael Mülleder, Abin Biswas, Ashley Castellaw, M. Winkler, Ulrike Abu Abed, Daniel Humme, Stephanie Thee, Antje Prasse, Benjamin Seeliger, Markus Ralser, Arturo Zychlinsky, Pauline Fahjen, Moritz Winkler, Ulrike Abu Abed, Daniel Humme, Stephanie Thee, Antje Prasse, Benjamin Seeliger, Dieter Beule, Christian Griesinger, Markus Ralser, Victor J. Torres, Arturo Zychlinsky   +25 more
openalex   +1 more source

Halogenated Organic Compounds: A Massive Halogen Reservoir and an Intriguing Component of the Marine Dissolved Organic Matter Pool

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Biogeochemical reactions produce volatile halocarbons and semi‐ to nonvolatile dissolved organic halogens (DOX) in marine systems. The former has a large influence on atmospheric chemistry, but little is known about DOX. Here, we present depth profiles of dissolved organic bromine (DOBr) and ‐iodine (DOI) isolated from the Central North ...
Leanne C. Powers, Johan Schijf, Philippe Schmitt‐Kopplin, Michael Gonsior   +3 more
wiley   +1 more source

Direct conversion of various phosphate sources to a versatile P-X reagent [TBA][PO2X2] via redox-neutral halogenation

Nature Communications
Inorganic phosphates hold significant potential as ideal natural building blocks, forming a fundamental basis for organic and biochemical synthesis.
Yaling Tian, Dong-ping Chen, Yao Chai, Ming Li, Xi-Cun Wang, Zhengyin Du, Xiaofeng Wu, Zheng-Jun Quan   +7 more
doaj   +1 more source

Preparation of Se(IV) Aryltrifluoromethylselenide Dichlorides

European Journal of Organic Chemistry, Volume 29, Issue 1, January 12, 2026.
An efficient synthesis of dichloro(aryl)(trifluoromethyl)‐λ4‐selanes via chlorination of aryl trifluoromethylselenides with SO2Cl2 is reported. The compounds were fully characterized and their stability studied. Density functional theory studies reveal an asynchronous concerted, exergonic pathway, while formation of the Se(VI) derivative is both ...
Julien Paut, Gabriel Goujon, Arnaud De Zordo‐Banliat, Guillaume Dagousset, Jorge Juan Cabrera‐Trujillo, Karinne Miqueu, Emmanuel Magnier, Bruce Pégot   +7 more
wiley   +1 more source

α-Bromodiazoacetamides – a new class of diazo compounds for catalyst-free, ambient temperature intramolecular C–H insertion reactions

Beilstein Journal of Organic Chemistry, 2013
In this work, we introduce a new class of halodiazocarbonyl compounds, α-halodiazoacetamides, which through a metal-free, ambient-temperature thermolysis perform intramolecular C–H insertions to produce α-halo-β-lactams.
Åsmund Kaupang, Tore Bonge-Hansen
doaj   +1 more source