نتایج جستجو برای: imide

تعداد نتایج: 1667  

Journal: :Organic & biomolecular chemistry 2011
Jayaraman Selvakumar Chinnasamy Ramaraj Ramanathan

Activation of imide carbonyl group with trifluoromethanesulfonic acid facilitates the intramolecular cyclization of phenethylphthalimides to give a fused isoindoloisoquinolinone skeleton. The first one pot regioselective synthesis of isoindoloisoquinolinone alkaloid (±)-nuevamine has been successfully executed using this methodology.

Journal: :Chemistry, an Asian journal 2012
Toshihiro Okamoto Tsuyoshi Suzuki Hideyuki Tanaka Daisuke Hashizume Yutaka Matsuo

We have designed and synthesized a new donor/acceptor-type tetracene derivative by the introduction of dicarboxylic imide and disulfide groups as electron-withdrawing and -donating units, respectively. The prepared compounds, tetracene dicarboxylic imide (TI) and its disulfide (TIDS) have high chemical and electrochemical stability as well as long-wavelength absorptions of up to 886 nm in the t...

2017
Oriele Palumbo Francesco Trequattrini Giovanni Battista Appetecchi Annalisa Paolone

Pyrrolidinium-based ionic liquids with anions of the per(fluoroalkylsulfonyl)imide family are particularly interesting for their use as electrolytes in lithium batteries. These ions have several geometric isomers and the presence of different ion conformers and their distribution affects the ILs (Ionic liquids) physical and chemical properties. In the present work, we report the temperature dep...

2012
Jia Zheng Yi-jun Zheng Xin-hua Wan Zhi Yuan Wang

A cholesterol-based organogelator bearing an anthraquinone imide (AQI) group was synthesized and characterized. It self-assembled into chiral gels in acetonitrile at low concentrations, which displayed a combination of electrochromic and chiroptical properties. Upon electrochemical reduction at −700 mV, the gel exhibited new absorption bands at around 820 nm corresponding to π*-π* (SOMO→LUMO) t...

Journal: :Berichte der deutschen chemischen Gesellschaft 1878

Journal: :Acta Crystallographica Section C Crystal Structure Communications 2004

Journal: :Physical chemistry chemical physics : PCCP 2015
Karina Shimizu Adilson A Freitas Rob Atkin Gregory G Warr Paul A FitzGerald Hiroyuki Doi Soshi Saito Kazuhide Ueno Yasuhiro Umebayashi Masayoshi Watanabe José N Canongia Lopes

The structure and interactions of different (Li salt + glyme) mixtures, namely equimolar mixtures of lithium bis(trifluoromethylsulfonyl)imide, nitrate or trifluoroacetate salts combined with either triglyme or tetraglyme molecules, are probed using Molecular Dynamics simulations. structure factor functions, calculated from the MD trajectories, confirmed the presence of different amounts of lit...

2000
Kent A. Watson John W. Connell

Polyimides with a unique combination of properties including low color in thin films, atomic oxygen (AO), ultra-violet (UV) radiation resistance, solubility in organic solvents in the imide form, high glass transition (Tg) temperatures and high thermal stability have been prepared and characterized. The polymers were prepared by reacting a novel aromatic diamine with aromatic dianhydrides in a ...

Journal: :Organic & biomolecular chemistry 2011
Haixia Wang Haixia Wu Lin Xue Yan Shi Xiyou Li

A novel 4-amino-1,8-naphthalimide (NDI) with two different metal cation receptors connected at 4-amino or imide nitrogen positions respectively was designed and prepared. Significant internal charge transfer (ICT) as well as photoinduced electron transfer (PET) from the receptors to NDI is revealed by the shifted UV-vis absorption spectra and significant fluorescence quenching. Both Zn(2+) and ...

Journal: :Molecular pharmacology 1997
B B Hasinoff A M Creighton H Kozlowska P Thampatty W P Allan J C Yalowich

The antitumor drug mitindomide (NSC 284356) was shown to inhibit the decatenation activity of human and Chinese hamster ovary (CHO) topoisomerase II [DNA topoisomerase (ATP-hydrolyzing), EC 5.99.1.1]. Mitindomide did not induce the formation of topoisomerase II-DNA covalent cleavable complexes in CHO cells. These results taken together indicate that mitindomide is a catalytic/noncleavable compl...

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