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679 Newest Publications about the topic bromine


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Surface functionalization of dinuclear clathrochelates via Pd-catalyzed cross-coupling reactions: facile synthesis of polypyridyl metalloligands

04-May-2016 | Mathieu Marmier; Giacomo Cecot; Basile F. E. Curchod; Philip Pattison; Euro Solari; Rosario Scopelliti; Kay Severin, Dalton Transactions, 2016

Dinuclear clathrochelate complexes are easily accessible by reaction of zinc(ii) triflate or cobalt(ii) nitrate with arylboronic acids and phenoldioximes. The utilization of brominated arylboronic acids and/or brominated phenoldioximes allows preparing clathrochelates with two, three, five or ...


Effects of NH4Br additive on mercury transformation and removal during the CFB coal combustion

30-Apr-2016 | Shilin Zhao, Yufeng Duan, Qiang Zhou, Chun Zhu, Meng Liu, Jianhong Lv, Journal of Chemical Technology & Biotechnology, 2016

ABSTRACT BACKGROUND Mercury emission from coal‐fired power plants has caused widespread concern. Halogen is considered to be a good mercury oxidant and many researchers have added it into the coal for mercury removal. However, the mechanism of the mercury transformation is still not clear. ...


Natural Organic Matter Exposed to Sulfate Radicals Increases Its Potential to Form Halogenated Disinfection Byproducts

25-Apr-2016 | Junhe Lu; Wei Dong; Yuefei Ji; Deyang Kong; Qingguo Huang, Environmental Science & Technology, 2016

Sulfate radical-based advanced oxidation processes (SR-AOPs) are considered as viable technologies to degrade a variety of recalcitrant organic pollutants. This study demonstrates that o-phthalic acid (PA) could lead to the formation of brominated disinfection byproducts (DBPs) in SR-AOPs in the ...


An Expeditious Synthesis of 8-Methoxy-1-tetralone

20-Apr-2016 | Norma Castillo-Rangel; José Oscar H. Pérez-Díaz; Alfredo Vázquez, Synthesis, 2016

SynthesisDOI: 10.1055/s-0035-1561601 8-Methoxy-1-tetralone was synthesized in a concise and efficient manner involving a sequential palladium-mediated cross-coupling reaction (Heck), catalytic hydrogenation, and intramolecular acylation mediated by Eaton’s reagent or Lewis acids. The pivotal ...


New Radiopaque Bromine‐Containing Monomers for Dental Restorative Materials

14-Apr-2016 | Sven Tauscher, Yohann Catel, Robert Liska, Norbert Moszner, Macromolecular Materials and Engineering, 2016

Four bromine‐containing methacrylates 1–4 are synthesized from pentaerythritol tribromide and 2,2,2‐tribromoethanol and are characterized by 1H and 13C NMR spectroscopy. Their free radical polymerization is performed in dimethylformamide (DMF), using 2,2′‐azobis(2‐methylpropionitrile) as ...


N,N-Dibromo-p-Toluenesulfonamide (TsNBr2): A Promising Alternative Bromo-Organic Reagent

14-Apr-2016 | Kamal Krishna Rajbongshi; Arun Jyoti Borah; Prodeep Phukan, Synlett, 2016

SynlettDOI: 10.1055/s-0035-1562024 N,N-Dihalosulfonamides are important reagents for various organic transformations. Simplicity, efficiency, and a unique chemical behaviour make this class of compounds synthetically useful. N,N-Dibromo-p-toluenesulfonamide (TsNBr2) is an efficient ...


Zinc Scorpionate Complexes with a Hybrid (Thiopyridazinyl)(thio­methimidazolyl)borate Ligand

13-Apr-2016 | Michael Tüchler, Stefan Holler, Sarah Rendl, Natascha Stock, Ferdinand Belaj, Nadia C. Mösch‐Zanetti, European Journal of Inorganic Chemistry, 2016

Abstract Zinc complexes with the mixed scorpionate ligand (6‐tert‐butyl‐3‐thiopyridazinyl)bis(2‐thiomethimidazolyl)borate (PnBm) have been synthesized and characterized by NMR and IR spectroscopy. The complexes, with the general formula [(PnBm)ZnX]2 [X = Br (1a), I (1b)], are dimeric in the ...


The role of halogen C-X1···X2-C contact on the preferred conformation of 2-Perhalomethylchromones in solid state

09-Apr-2016 | Author(s): C.D. Alcívar León, G.A. Echeverría, O.E. Piro, S.E. Ulic, J.L. Jios, M. Paci Burgos, G.A Ar ..., Chemical Physics, 2016

Publication date: Available online 7 April 2016 Source:Chemical Physics Author(s): C.D. Alcívar León, G.A. Echeverría, O.E. Piro, S.E. Ulic, J.L. Jios, M. Paci Burgos, G.A Argüello The solid state of 2-chlorodifluoromethyl-3-methylchromone (1) and ...


Palladium‐Catalyzed Amination of C‐5 Bromoimidazo[2,1‐b]­[1,3,4]­thiadiazoles

05-Apr-2016 | Chloé Copin, Frédéric Buron, Sylvain Routier, European Journal of Organic Chemistry, 2016

Abstract A new and efficient palladium‐catalyzed amination of imidazo[2,1‐b][1,3,4]thiadiazole at the C‐5 position under microwave irradiation is reported. The reactivity toward bromine release at the C‐5 position was investigated, and palladium‐catalyzed cross‐coupling conditions were ...


Ternary Model of the Speciation of I-/Br-/Cl-Trihalomethanes Formed in Chloraminated Surface Waters

04-Apr-2016 | Mingquan Yan; Mingyang Li; Paolo Roccaro; Gregory V. Korshin, Environmental Science & Technology, 2016

This study examined the effects of the iodide concentration and pH on yields and speciation of the entire group of 10 species of iodine-, bromine-, and chlorine-containing trihalomethanes (THMs) formed at pH values from 6.5 to 8.5 in chloraminated surface waters in the presence of bromide and ...


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