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625 Newest Publications about the topic bromine


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Halogen mediated voltammetric oxidation of biological thiols and disulfides

25-Nov-2015 | Edelmira Valero-Ruiz; María I. González-Sánchez; Christopher Batchelor-McAuley; Richard G. Compton, Analyst, 2015

The electrochemical generation of the halides, bromine and iodine, in the presence of biologically relevant organosulfur is demonstrated to result in an analytically useful response. In the case of the iodide/iodine redox couple only the thiol causes an increase in the electrochemical oxidative ...


Atmospheric Solid Analysis Probe-Ion Mobility Mass Spectrometry: An Original Approach to Characterize Grafting on Cyclic Olefin Copolymer Surfaces

20-Nov-2015 | Julien Vieillard; Marie Hubert-Roux; Florian Brisset; Cecile Soulignac; Flavia Fioresi; Nadine Mofaddel; Sandrine Mo ..., Langmuir, 2015

A cyclic olefin copolymer (COC) was grafted with aryl layers from aryldiazonium salts, and then we combined infrared spectrometry, atomic force microscopy (AFM), and ion mobility mass spectrometry with atmospheric solid analysis probe ionization (ASAP-IM-MS) to characterize the aryl layers. ASAP ...


ChemInform Abstract: Direct Access to N‐Alkylsulfoximines from Sulfides by a Sequential Imidation/Oxidation Procedure.

19-Nov-2015 | Carl Albert Dannenberg, Vincent Bizet, Carsten Bolm, ChemInform, 2015

Abstract The imidating agents N‐bromoalkylamines, generated in situ from methyl amines (II) and bromine, react with sulfides [e.g. (I)] to form sulfiliminium, which was subsequently oxidized to sulfoximines [e.g. (III)] in a short time.


Ruthenium Complex “Light Switches” that are Selective for Different G‐Quadruplex Structures

12-Nov-2015 | Erin Wachter, Diego Moyá, Sean Parkin, Edith C. Glazer, Chemistry - A European Journal, 2015

Abstract Recognition and regulation of G‐quadruplex nucleic acid structures is an important goal for the development of chemical tools and medicinal agents. The addition of a bromo‐substituent to the dipyridylphenazine (dppz) ligands in the photophysical “light switch”, [Ru(bpy)2dppz]2+, and ...


Targeting the Gatekeeper MET146 of C-Jun N-Terminal Kinase 3 Induces a Bivalent Halogen/Chalcogen Bond

12-Nov-2015 | Andreas Lange; Marcel Günther; Felix Michael Büttner; Markus O. Zimmermann; Johannes Heidrich; Susanne Hennig; Stefa ..., Journal of the American Chemical Society, 2015

We target the gatekeeper MET146 of c-Jun N-terminal kinase 3 (JNK3) to exemplify the applicability of X···S halogen bonds in molecular design using computational, synthetic, structural and biophysical techniques. In a designed series of aminopyrimidine-based inhibitors, we unexpectedly encounter ...


Airborne measurements of organic bromine compounds in the Pacific tropical tropopause layer [Earth, Atmospheric, and Planetary Sciences]

10-Nov-2015 | Maria A. Navarro; Elliot L. Atlas; Alfonso Saiz-Lopez; Xavier Rodriguez-Lloveras; Douglas E. Kinnison; Jean-Francois ..., Proceedings of the National Academy of Sciences current issue, 2015

Very short-lived brominated substances (VSLBr) are an important source of stratospheric bromine, an effective ozone destruction catalyst. However, the accurate estimation of the organic and inorganic partitioning of bromine and the input to the stratosphere remains uncertain. Here, we report ...


Four‐Component Relativistic DFT Calculations of 13C Chemical Shifts of Halogenated Natural Substances

06-Nov-2015 | Girolamo Casella, Alessandro Bagno, Stanislav Komorovsky, Michal Repisky, Giacomo Saielli, Chemistry - A European Journal, 2015

Abstract We have calculated the 13C NMR chemical shifts of a large ensemble of halogenated organic molecules (81 molecules for a total of 250 experimental 13C NMR data at four different levels of theory), ranging from small rigid organic compounds, used to benchmark the performance of various ...


The oxygenating constituent of 3,6‐diketocamphane monooxygenase from the CAM plasmid of Pseudomonas putida: the first crystal structure of a type II Baeyer–Villiger monooxygenase

04-Nov-2015 | Michail N. Isupov, Ewald Schröder, Robert P. Gibson, Jean Beecher, Giuliana Donadio, Vahid Saneei, Stephlina A. Dcun ..., Acta Crystallographica Section D, 2015

The three‐dimensional structures of the native enzyme and the FMN complex of the overexpressed form of the oxygenating component of the type II Baeyer–Villiger 3,6‐diketocamphane monooxygenase have been determined to 1.9 Å resolution. The structure of this dimeric FMN‐dependent enzyme, which is ...


Reactivity of Aminophosphonic Acids. Oxidative Dephosphonylation of 1-Aminoalkylphosphonic Acids by Aqueous Halogens

04-Nov-2015 | Józef Drabowicz; Frank Jordan; Marcin H Kudzin; Zbigniew H Kudzin; Christian V. Stevens; Pawel Urbaniak, Dalton Transactions, 2015

ABSTRACT: The reactions of 1-aminoalkylphosphonic acids with bromine-water reagent, chlorine-water and iodine-water were investigated. The formation of phosphoric(V) acid, as a result of a halogen-promoted cleavage of the Cα-P bond, was observed. The dephosphonylation of 1-aminoalkylphosphonic ...


Reactivity of α‐Bromosulfones Obtained from gem‐Dibromides

03-Nov-2015 | Niels Münster, Laura Werel, Georg Alexander Rennar, Klaus Harms, Ulrich Koert, European Journal of Organic Chemistry, 2015

Abstract α‐Bromosulfones have been synthesized diastereoselectively by reaction of β‐hydroxy gem‐dibromides with aromatic sulfinates. More steric demanding groups in the β‐position led to increased stereoselectivity in these SN2 reactions. Lithiated α‐bromosulfones react diastereoselectively ...


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