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537 Newest Publications about the topic bromine

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Hypobromous acid, a powerful endogenous electrophile: Experimental and theoretical studies

12-Apr-2015 | Author(s): Valdecir Farias Ximenes , Nelson Henrique Morgon , Aguinaldo Robinson de Souza, Journal of Inorganic Biochemistry, 2015

Publication date: May 2015 Source:Journal of Inorganic Biochemistry, Volume 146 Author(s): Valdecir Farias Ximenes , Nelson Henrique Morgon , Aguinaldo Robinson de Souza Hypobromous acid (HOBr) is an inorganic acid produced by the oxidation of the bromide anion (Br−). The blood plasma ...

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Photocatalytic Oxidative Heterocyclization of Semicarbazones: An Efficient Approach for the Synthesis of 1,3,4-Oxadiazoles

10-Apr-2015 | Ritu Kapoorr; Sachchida N. Singh; Shubhangi Tripathi; Lal Dhar S. Yadav, Synlett, 2015

SynlettDOI: 10.1055/s-0034-1380493 A highly efficient eosin Y catalyzed oxidative heterocyclization of semicarbazones was established under visible-light photoredox catalysis using CBr4 as a bromine source. The protocol renders a rapid, mild, and efficient access to valuable 5-substituted ...

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Contributions of BrCl, Br2, BrOCl, Br2O, and HOBr to Regiospecific Bromination Rates of Anisole and Bromoanisoles in Aqueous Solution

03-Apr-2015 | John D. Sivey; Mark A. Bickley; Daniel A. Victor, Environmental Science & Technology, 2015

When bromide-containing waters are chlorinated, conventional wisdom typically assumes HOBr is the only active brominating agent. Several additional and often-overlooked brominating agents (including BrCl, Br2, BrOCl, Br2O) can form in chlorinated waters, albeit at generally lower concentrations ...

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Role of Bromide in Hydrogen Peroxide Oxidation of CTAB-Stabilized Gold Nanorods in Aqueous Solutions

01-Apr-2015 | Qiannan Zhu; Jian Wu; Junwei Zhao; Weihai Ni, Langmuir, 2015

In recent years hydrogen peroxide has often been used as the oxidizing agent to tune the resonance wavelength of gold nanorods (AuNRs) through anisotropic shortening in the presence of cetyltrimethylammonium bromide (CTAB). However, a complete picture of the reaction mechanism remains elusive. In ...

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Regioselective Oxidation Approaches to Concise Synthesis of (±)‐Canabisin D

30-Mar-2015 | Wenling Li, Qian Liu, Hao Liu, Peilan Chen, Xi Yang, Yingying Liu, Chinese Journal of Chemistry, 2015

Abstract The regioselective effects of tert‐butyl or bromine as the position‐protecting group of feruloytyamide on the oxidative coupling reactions for the synthesis of natural (±)‐canabisin D were investigated in detail. The coupling yield of 8‐8‐coupled aryldihydronaphthalene product of ...

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Preparation and properties of phenyl‐modified natural rubber

30-Mar-2015 | Seiichi Kawahara, Shintaro Shioyama, Choothong Nuorn, Lina Fukuhara, Hiroyuki Ishii, Yoshimasa Yamamoto, Katsuhiko T ..., Polymers for Advanced Technologies, 2015

We prepared phenyl‐modified natural rubber using a two‐step process. In the first step, natural rubber was brominated using N‐bromosuccinimide in a dichloromethane solution of natural rubber. The amount of N‐bromosuccinimide controlled the bromine content. In the second step, a Suzuki–Miyaura ...

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Large-Scale Micro- and Nanopatterns of Cu(In,Ga)Se2 Thin Film Solar Cells by Mold-Assisted Chemical-Etching Process

30-Mar-2015 | Yi-Chung Wang; Hsiang-Ying Cheng; Yu-Ting Yen; Tsung-Ta Wu; Cheng-Hung Hsu; Hung-Wei Tsai; Chang-Hong Shen; Jia-Min ..., ACS Nano, 2015

A reactive mold-assisted chemical etching (MACE) process through an easy-to-make agarose stamp soaked in bromine methanol etchant to rapidly imprint larger area micro- and nanoarrays on CIGS substrates was demonstrated. Interestingly, by using the agarose stamp during the MACE process with and ...

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Microwave-Assisted Synthesis of Few-Layered MoS2/BiOBr Hollow Microspheres with Superior Visible-Response Photocatalytic Activity for Ciprofloxacin Removal

26-Mar-2015 | Jiexiang Xia; Yuping Ge; Dexiang Zhao; Jun Di; Mengxia Ji; Sheng Yin; Huaming Li; Rong Chen, CrystEngComm, 2015

The BiOBr hollow microspheres attached with single-layered molybdenum disulfide (MoS2) were prepared by ethylene glycol (EG) assisted microwave process in the presence of 1-hexadecyl-3-methylimidazolium bromine ([C16mim]Br). The as-prepared samples are characterized by X-ray diffraction (XRD), ...

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Bioinspired, Base‐ and Metal‐Free, Mild Decarboxylative Aldol Activation of Malonic Acid Half Thioesters Under Phase‐Transfer Reaction Conditions

25-Mar-2015 | Sean P. Bew, G. Richard Stephenson, Jacques Rouden, Polly‐Anna Ashford, Manuel Bourane, Agathe Charvet, Virginie M. ..., Advanced Synthesis & Catalysis, 2015

Abstract Utilizing ‘off the shelf’ commercially available, cheap, small synthetic molecules that mimic the efficient mediation of important bioreactions utilized by Nature is not only highly sought after but also currently highly topical. This paper details our preliminary efforts at ...

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IJMS, Vol. 16, Pages 6783-6800: Towards Understanding the Decomposition/Isomerism Channels of Stratospheric Bromine Species: Ab Initio and Quantum Topology Study

25-Mar-2015 | Aziz, Saadullah G.; Alyoubi, Abdulrahman O.; Elroby, Shaaban A.; Osman, Osman I.; Hilal, Rifaat H., International Journal of Molecular Sciences, 2015

The present study aims at a fundamental understanding of bonding characteristics of the C–Br and O–Br bonds. The target molecular systems are the isomeric CH3OBr/BrCH2OH system and their decomposition products. Calculations of geometries and frequencies at different density functional theory ...

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