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522 Newest Publications about the topic bromine

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Enantioselective Halogenative Semi‐Pinacol Rearrangement: Extension of Substrate Scope and Mechanistic Investigations

25-Feb-2015 | Fedor Romanov‐Michailidis, Maria Romanova‐Michaelides, Marion Pupier, Alexandre Alexakis, Chemistry - A European Journal, 2015

Abstract The present Full Paper article discloses a survey of our recent results obtained in the context of the enantioselective halogenation‐initiated semi‐pinacol rearrangement. Commencing with the fluorination/semi‐pinacol reaction first and moving to the heavier halogens (bromine and ...

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Synthesis of 3-Bromosubstituted Pyrroles via Palladium-Catalyzed Intermolecular Oxidative Cyclization of Bromoalkynes with N-Allylamines

25-Feb-2015 | Huanfeng Jiang; Jia Zheng; Liangbin Huang; Zun Li; Wanqing Wu; Jianxiao Li, Chemical Communication, 2015

This paper describes a novel palladium-catalyzed oxidative cyclization of bromoalkynes with N-allylamines via cascade formation of C–N and C–C bonds. During this process, the bromine atom was retained to form 3-bromo-pyrroles, which can undergo the subsequent structural modifications

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Synthesis of C6‐Pyridylpurine Nucleosides by Reaction of Nebularine N1‐Oxide with Pyridinyl Grignard Reagents

19-Feb-2015 | Stefano D'Errico, Giorgia Oliviero, Nicola Borbone, Fabrizia Nici, Vincenzo Piccialli, Brunella Pinto, Daniele D'Alo ..., European Journal of Organic Chemistry, 2015

Abstract A general synthesis of C6‐pyridylpurine nucleosides is described. The reported synthetic procedure exploits the regioselective addition of pyridinyl Grignard reagents, obtained by bromine/magnesium exchange between mono‐ or dihalopyridines and iPrMgCl, to the C6–N1–O– moiety of ...

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Evaluating the Potential of Halogen Bonding in Molecular Design: Automated Scaffold Decoration Using the New Scoring Function XBScore

19-Feb-2015 | Markus O. Zimmermann; Andreas Lange; Frank M. Boeckler, Journal of Chemical Information and Modeling, 2015

We present a QM-derived empirical scoring function for the interaction between aromatic halogenated ligands and the carbonyl oxygen atom of the protein backbone. Applying this scoring function, we developed an algorithm that evaluates the potential of protein-bound ligands to form favorable ...

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Raman spectroscopy of bromine chains inside the one‐dimensional channels of AlPO4‐5 single crystals

18-Feb-2015 | Zhaodong Liu, Mingguang Yao, Ye Yuan, Shuanglong Chen, Ran Liu, Shuangchen Lu, Bo Zou, Tian Cui, Bingbing Liu, Journal of Raman Spectroscopy, 2015

Raman spectroscopy of the one‐dimensional atomic or molecular chains, which are the attractive building blocks of advanced nanoscale materials, is crucial in understanding the physical properties of the one‐dimensional atomic or molecular chains. Here, we introduce the bromine into the ...

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Solvatochromic shifts of Br2 and I2 in water cages of type 512, 51262, 51263, and 51264

18-Feb-2015 | Nils Middendorf, Katharina Krause, Sebastian Höfener, Journal of Computational Chemistry, 2015

Despite the relatively small size of molecular bromine and iodine, the physicochemical behavior in different solvents is not yet fully understood, in particular when excited‐state properties are sought. In this work, we investigate isolated halogen molecules trapped in clathrate hydrate cages. ...

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Detection of Bromine by ICP-oa-ToF-MS Following Photochemical Vapor Generation

17-Feb-2015 | Ralph E. Sturgeon, Analytical Chemistry, 2015

A unique flow-through photochemical reactor is utilized for the generation of volatile methyl bromide from aqueous solutions of bromide and bromate ions in a medium of 2% acetic acid containing 3000 μg/mL NH4Cl. The volatile product is transported to a thin-film gas–liquid phase separator and ...

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ChemInform Abstract: A Mild Method for the Regioselective Bromination of 2‐Aminopyridines.

05-Feb-2015 | Tong Xu, Wen Zhou, Jing Wang, Xue Li, Jun‐Wen Guo, Bin Wang, ChemInform, 2015

Abstract The regioselective bromination of 2‐aminopyridines in 5‐position is achieved using 1‐butylpyridinium bromide as the bromine source and hydrogen peroxide as the oxidant.

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A Versatile and One-Pot Strategy to Synthesize α-Amino Ketones from Benzylic Secondary Alcohols Using N-Bromosuccinimide

29-Jan-2015 | Somraj Guha; Venkatachalam Rajeshkumar; Surya Srinivas Kotha; Govindasamy Sekar, Organic Letters, 2015

A metal-free one-pot strategy has been developed for the first time to synthesize pharmaceutically important α-amino ketones from readily available benzylic secondary alcohols and amines using N-bromosuccinimide. This new reaction proceeds via three consecutive steps involving oxidation of ...

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First Hyperpolarizability of Ru-half-sandwich Complexes: The Effect of Halogen Atom Substitution on the Ancillary Ligand

25-Jan-2015 | Author(s): Soumi De , Raja Mitra , A.G. Samuelson , Puspendu K. Das, Journal of Organometallic Chemistry, 2015

Publication date: Available online 23 January 2015 Source:Journal of Organometallic Chemistry Author(s): Soumi De , Raja Mitra , A.G. Samuelson , Puspendu K. Das The first hyperpolarizability (β) of a series of half-sandwich Ru complexes with a mercaptobenzothiazole ligand bearing a ...

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