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789 Newest Publications about the topic bromine

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Reagents for Bromination; Application in the Synthesis of Diterpenes, Sesquiterpenes and Bioactive Compounds

19-Apr-2017 | S. Poon, Po; K. Banerjee, Ajoy; J. Vera, William; Bedoya, Liadis, Organic Chemistry, 2017

Abstract: Several organic compounds especially cyclic compounds containing double or triple bond and carbonyl compounds, aromatic compounds were brominated by employing several well-known reagents e.g., Nbromosuccinimide, bromine in acetic acid, ammonium bromide, hydrogen peroxide in acetic ...

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1,4-Dicarbofunctionalization of 4-Fluoroaryl Grignard and Lithium Reagents with Disubstituted Malononitriles

14-Apr-2017 | Christian A. Malapit; Irungu K. Luvaga; Jonathan T. Reeves; Ivan Volchkov; Carl A. Busacca; Amy R. Howell; Chris H. ..., The Journal of Organic Chemistry, 2017

An efficient one-pot 1,4-dicarbofunctionalization of 4-fluoroaryl Grignard or lithium reagents with 2,2-disubstituted malononitriles is described. The reaction proceeds by sequential transnitrilation and SNAr reactions. Commercial Grignard solutions, Grignard reagents prepared in situ by ...

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Molecules, Vol. 22, Pages 630: N-(2,2-Dimethyl-1-(quinolin-2-yl)propylidene) arylaminonickel Complexes and Their Ethylene Oligomerization

13-Apr-2017 | Suo, Hongyi ; Zhao, Tong ; Wang, Yiqing ; Ban, Qing ; Sun, Wen-Hua, Molecules, 2017

A series of N-(2,2-dimethyl-1-(quinolin-2-yl)propylidene) arylamines was sophisticatedly synthesized and reacted with nickel(II) bromine for the formation of the corresponding nickel complexes. All the organic compounds were characterized by IR, NMR spectra and elemental analysis, while all the ...

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Determination of bromine and iodine in edible flours by inductively coupled plasma mass spectrometry after microwave-induced combustion

02-Apr-2017 | Author(s): Jussiane S. Silva, Lisarb O. Diehl, Angelica C. Frohlich, Vanize C. Costa, Marcia F. Mesko, Fab ..., Microchemical Journal, 2017

Publication date: July 2017 Source:Microchemical Journal, Volume 133 Author(s): Jussiane S. Silva, Lisarb O. Diehl, Angelica C. Frohlich, Vanize C. Costa, Marcia F. Mesko, Fabio A. Duarte, Erico M.M. Flores A microwave-induced combustion (MIC) method was developed and applied ...

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Brush‐type surface modification of kapton with a new approach

31-Mar-2017 | Sema Vural, Turgay Seckin, Advances in Polymer Technology, 2017

Abstract In this study, polystyrene‐ and poly(methyl methacrylate)‐grafted polyimide films were prepared successfully using click chemistry and the ATRP technique. Firstly, kapton films were prepared from stepwise thermal imidization of polyamic acid. Surface modification of kapton films was ...

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FDHALO17: The anomalous Halogen Bonding Interactions between Chlorine and Bromine with Water in Clathrate Hydrates

17-Mar-2017 | Hana Dureckova; Tom Woo; Konstantin Udachin; John A Ripmeester; Saman Alavi, Faraday Discussions, 2017

Clathrate hydrate phases of Cl2 and Br2 guest molecules have been known for about 200 years. The crystal structure of these phases was recently re-determined with high accuracy by single crystal X-ray diffraction. In these structures, the water oxygen-halogen atom distances are determined to be ...

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A Benchmark Study of Kinetic Isotope Effects and Barrier Heights for the Finkelstein Reaction

15-Mar-2017 | Szymon Żaczek; Faina Gelman; Agnieszka Dybala-Defratyka, Journal of Physical Chemistry A, 2017

Herein, we present a combined (experimental and computational) study of the Finkelstein reaction in condensed phase, where bromine is substituted by iodine in 2-bromoethylbenzene, in the presence of either acetone or acetonitrile as a solvent. Performance of various density functional theory and ...

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Chiral N,N’-Dioxide-Sc(NTf2)3 Complex-Catalyzed Asymmetric Bromoamination of Chalones with N-Bromosuccinimide as Both Bromine and Amide Sources

09-Mar-2017 | Zhengmeng Wang; Lili Lin; Pengfei Zhou; Xiaohua Liu; Xiaoming Feng, Chemical Communication, 2017

The catalytic asymmetric bromoamination of chalcones with N-bromosuccinimide as both bromine and amide sources was realized by using a chiral N,N’-dioxide-Sc(NTf2)3 complex as the efficient catalyst. The corresponding chiral bromoamination products were obtained in high yields with high dr and ...

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All-Conjugated, All-Crystalline Donor–Acceptor Block Copolymers P3HT-b-PNDIT2 via Direct Arylation Polycondensation

28-Feb-2017 | Fritz Nübling; Hartmut Komber; Michael Sommer, Macromolecules, 2017

The synthesis and characterization of all-conjugated, all-crystalline donor–acceptor block copolymers (BCPs) containing poly(3-hexylthiophene) (P3HT) and poly{[N,N′-bis(2-octyldodecyl)naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]-alt-5,5′-(2,2′-bithiophene)} (PNDIT2) is presented. Direct ...

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Halogen bond effects on the thermo‐ and photochromic behaviour of anil‐based molecular co‐crystals

27-Feb-2017 | Andrea Carletta, Floriana Spinelli, Simone d'Agostino, Barbara Ventura, Michele Remo Chierotti, Roberto Gobetto, Jo ..., Chemistry - A European Journal, 2017

N‐salicilideneanilines are among the most studied thermochromic and photochromic systems in the solid state. Although thermochromism is a general property of crystalline N‐salicilideneanilines, photochromism is known in a limited number of cases. We report here, as a method for the construction ...

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