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740 Newest Publications about the topic bromine


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Mechanistic Investigation of Catalyst‐Transfer Suzuki–Miyaura Condensation Polymerization of Thiophene–Pyridine Biaryl Monomers with the Aid of Model Reactions

14-Oct-2016 | Yu Tokita, Masaru Katoh, Yoshihiro Ohta, Tsutomu Yokozawa, Chemistry - A European Journal, 2016

Abstract We have investigated the requirements for efficient Pd‐catalyzed Suzuki–Miyaura catalyst‐transfer condensation polymerization (Pd‐CTCP) reactions of 2‐alkoxypropyl‐6‐(5‐bromothiophen‐2‐yl)‐3‐(4,4,5,5‐tetramethyl‐1,3,2‐dioxaborolan‐2‐yl)pyridine (12) as a donor–acceptor (D–A) biaryl ...


ChemInform Abstract: Elemental Bromine Production by TiO2 Photocatalysis and/or Ozonation.

13-Oct-2016 | Francesco Parrino, Giovanni Camera Roda, Vittorio Loddo, Leonardo Palmisano, ChemInform, 2016

Abstract Formation of Br2 occurs when a TiO2 aqueous suspension containing KBr and HNO3 is irradiated under near‐UV light in the presence of O2 (40 °C).


Increasing Thyromimetic Potency through Halogen Substitution

12-Oct-2016 | Jordan Devereaux, Skylar J. Ferrara, Tania Banerji, Andrew T. Placzek, Thomas S. Scanlan, ChemMedChem, 2016

Abstract Sobetirome is one of the most studied thyroid hormone receptor β (TRβ)‐selective thyromimetics in the field due to its excellent selectivity and potency. A small structural change—replacing the 3,5‐dimethyl groups of sobetirome with either chlorine or bromine—produces significantly ...


Development of a Robust Photocatalyzed ATRP Mechanism Exhibiting Good Tolerance to Oxygen and Inhibitors

07-Oct-2016 | Qizhi Yang; Jacques Lalevée; Julien Poly, Macromolecules, 2016

A new photocatalyzed atom transfer radical polymerization (ATRP) procedure starting directly from a copper(II) bromine/phenanthroline (phen) mixture in the presence of triethylamine as a reducing agent is described. Under the irradiation of a compact blue LED lamp, the polymerization of methyl ...


Alternative technology for reducing bromine index value of industrial benzene feedstock

06-Oct-2016 | Kongkiat Suriye, Asia-Pacific Journal of Chemical Engineering, 2016

Abstract Alternative technology for reducing the bromine index value, which represents trace impurity of unsaturated hydrocarbon, in the industrial benzene feedstock was systematically developed in this study using the adsorption approach. Effects of different physicochemical properties of ...


Enzymatic Reductive Dehalogenation Controls the Biosynthesis of Marine Bacterial Pyrroles

29-Sep-2016 | Abrahim El Gamal; Vinayak Agarwal; Imran Rahman; Bradley S. Moore, Journal of the American Chemical Society, 2016

Enzymes capable of performing dehalogenating reactions have attracted tremendous contemporary attention due to their potential application in the bioremediation of anthropogenic polyhalogenated persistent organic pollutants. Nature, in particular the marine environment, is also a prolific source ...


ChemInform Abstract: Oxidative Esterification of Aromatic Aldehydes Using Polymer‐Supported Green Bromine.

28-Sep-2016 | A. Sridhar, S. Swarnalakshmi, M. Selvaraj, ChemInform, 2016

Abstract Alkyl benzoates are prepared by a facile, green one‐pot esterification of benzaldehydes using bromine supported on Amberlite IRA‐400 chloride resin as reusable catalyst.


ChemInform Abstract: Efficient Preparation of TMSCCl2Br and Its Use in Dichlorocyclopropanation of Electron‐Deficient Alkenes.

22-Sep-2016 | Darren S. Lee, Maria Jesus Duran‐Pena, Laurence Burroughs, Simon Woodward, ChemInform, 2016

Abstract The 1,4‐addition of TMSCCl2Br to fumarate (I) and cyclic nitroalkenes is accompanied by cyclization with bromine elimination to afford dichlorocyclopropane derivatives.


Photochemical Nickel-Catalyzed C–H Arylation: Synthetic Scope and Mechanistic Investigations

21-Sep-2016 | Drew R. Heitz; John C. Tellis; Gary A. Molander, Journal of the American Chemical Society, 2016

An iridium photocatalyst and visible light facilitate a room temperature, nickel-catalyzed coupling of (hetero)aryl bromides with activated α-heterosubstituted or benzylic C(sp3)–H bonds. Mechanistic investigations on this unprecedented transformation have uncovered the possibility of an ...


Bimetallic Cu‐Mn catalyzed synthesis of 2‐arylquinazolin‐4(3H)‐ones: Aqueous ammonia as a source of ring nitrogen

19-Sep-2016 | Sandip Bibishan Bharate, Rohit Sharma, Ram A Vishwakarma, European Journal of Organic Chemistry, 2016

A new method for synthesis of 2‐arylquinazolin‐4(3H)‐ones comprising a 3‐component coupling of 2‐bromobenzamide, aryl aldehydes and aqueous ammonia has been reported. The protocol involves Cu‐Mn spinel oxide as a heterogeneous catalyst and does not require any ligand or external oxidant. Key ...


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