Chemistry – An Asian Journal

Cover image for Vol. 2 Issue 3

March 5, 2007

Volume 2, Issue 3

Pages 331–439

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Focus Review
    5. Full Papers
    6. Preview
    1. Cover Picture: An Improved Ruthenium Catalyst for the Environmentally Benign Amination of Primary and Secondary Alcohols (Chem. Asian J. 3/2007) (page 331)

      Dirk Hollmann, Annegret Tillack, Dirk Michalik, Ralf Jackstell and Matthias Beller

      Version of Record online: 26 FEB 2007 | DOI: 10.1002/asia.200790003

      Like a mountain pass novel ruthenium catalysts allow direct access to secondary amines from alcohols. The dehydrogenation–condensation–hydrogenation reaction sequence proceeds smoothly with an [Ru3(CO)12] and N-phenyl-2-(dicyclohexylphosphanyl)pyrrole combination catalyst generated in situ. This highly atom-economical reaction is an environmentally attractive method for the synthesis of secondary amines. In their Full Paper on page 403 ff., M. Beller and co-workers present a comprehensive study of the ruthenium-catalyzed amination reaction. (Picture: “Valley of the Winds—Kata Tjuta” © Dirk Hollmann, 2005.)

  2. Graphical Abstract

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Focus Review
    5. Full Papers
    6. Preview
  3. Focus Review

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Focus Review
    5. Full Papers
    6. Preview
    1. Ratiometric and Near-Infrared Molecular Probes for the Detection and Imaging of Zinc Ions (pages 338–348)

      Priya Carol, Sivaramapanicker Sreejith and Ayyappanpillai Ajayaghosh

      Version of Record online: 13 FEB 2007 | DOI: 10.1002/asia.200600370

      Thumbnail image of graphical abstract

      Illuminate and image: Fluorophores that allow ratiometric detection and imaging of Zn2+ are important. In this context, molecules that emit in the far-visible and near-IR regions are advantageous for biological samples. Though a variety of near-IR dyes are known, they are rarely used for the ratiometric imaging of Zn2+ in vivo. This Focus Review highlights the importance of such systems.

  4. Full Papers

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Focus Review
    5. Full Papers
    6. Preview
    1. Micro- and Nanometer-Scale Porous, Fibrous, and Sheet Architectures Constructed by Supramolecular Assemblies of Dipyrrolyldiketones (pages 350–357)

      Hiromitsu Maeda, Yukio Kusunose, Masahiro Terasaki, Yoshihiro Ito, Chikoto Fujimoto, Rika Fujii and Takashi Nakanishi

      Version of Record online: 22 JAN 2007 | DOI: 10.1002/asia.200600379

      Thumbnail image of graphical abstract

      Like pasta: Hydrogen-bonding interactions of 1,3-dipyrrolyl-1,3-propanediones result in assemblies with micro- and nanometer-scale architectures. The morphologies of porous, fibrous, and sheet structures can be determined by fine-tuning the substitution pattern as well as the solvents used.

    2. Chiral Ruthenium–Allenylidene Complexes That Bear a Fullerene Cyclopentadienyl Ligand: Synthesis, Characterization, and Remote Chirality Transfer (pages 358–366)

      Yu-Wu Zhong, Yutaka Matsuo and Eiichi Nakamura

      Version of Record online: 8 FEB 2007 | DOI: 10.1002/asia.200600341

      Thumbnail image of graphical abstract

      Fullerene spectrum: Chiral ruthenium allenylidene complexes that bear an η5-C60Me5 ligand benefit from the physicochemical properties of both fullerene and allenylidene moieties. Grignard addition to these allenylidenes takes place with perfect regioselectivity and moderate to high diastereoselectivity (up to 95:5). These compounds are redox active and intensely colored.

    3. Synthesis of Molecular Wires of Linear and Branched Bis(terpyridine)-Complex Oligomers and Electrochemical Observation of Through-Bond Redox Conduction (pages 367–376)

      Yoshihiko Nishimori, Katsuhiko Kanaizuka, Masaki Murata and Hiroshi Nishihara

      Version of Record online: 8 FEB 2007 | DOI: 10.1002/asia.200600350

      Thumbnail image of graphical abstract

      Branching out: Films of linear and branched wires of oligomers of [Fe(tpy)2] (tpy=2,2′:6′,2′′-terpyridine) can be constructed on a gold-electrode surface by interfacial stepwise coordination. The electron-transport mechanism and kinetics for the redox reaction of the films are interpreted by the model of redox conduction in single molecular wires. G=generation.

    4. Synthesis of [18,19,21,22-13C4]-Labeled Tautomycin as an NMR Probe of Protein Phosphatase Inhibitor (pages 377–385)

      Minoru Isobe, Masakuni Kurono, Katsunori Tsuboi and Akira Takai

      Version of Record online: 15 FEB 2007 | DOI: 10.1002/asia.200600387

      Thumbnail image of graphical abstract

      Product labels: 13C-labeled tautomycin can be synthesized by the assembly of three separate fragments. With the appropriate labeling shown, the dynamics and conformation of the C17–C26 moiety can be elucidated. This compound was also found to bind strongly to protein phosphatase type 1.

    5. Novel Unsymmetric α-Diimine Nickel(II) Complexes: Suitable Catalysts for Copolymerization Reactions (pages 386–392)

      Dieter Meinhard and Bernhard Rieger

      Version of Record online: 5 FEB 2007 | DOI: 10.1002/asia.200600353

      Thumbnail image of graphical abstract

      Here's to cooperation: Novel unsymmetric α-diimine nickel(II) complexes can be prepared by using a new synthetic protocol. These compounds with the help of trimethylaluminum catalyze the copolymerization reactions of ethylene and higher 1-olefins in the presence of hydrogen. The incorporation rate can be controlled by the steric demands of R. Pol=polymer.

    6. Ruthenium-Catalyzed Sequential Reactions: Deracemization of Secondary Benzylic Alcohols (pages 393–396)

      Yusuke Shimada, Yoshihiro Miyake, Hiroshi Matsuzawa and Yoshiaki Nishibayashi

      Version of Record online: 12 JAN 2007 | DOI: 10.1002/asia.200600354

      Thumbnail image of graphical abstract

      The three Rs: Two different Ruthenium complexes catalyze the two-step Redox deracemization of secondary benzylic alcohols to the R isomer. The sequential catalytic system provides a novel approach to obtaining optically active alcohols in high yields with excellent enantioselectivity (up to 95 % ee), in contrast to the conventional kinetic resolution of racemic alcohols. Ts=p-toluenesulfonyl.

    7. Synthesis of a Stimuli-Responsive P-Chiral Polymer with Chiral Phosphorus Atoms and Azobenzene Moieties in the Main Chain (pages 397–402)

      Yuko Ouchi, Yasuhiro Morisaki, Tomoki Ogoshi and Yoshiki Chujo

      Version of Record online: 18 JAN 2007 | DOI: 10.1002/asia.200600378

      Thumbnail image of graphical abstract

      Polyform polymers: An optically active polymer with chiral phosphorus atoms and azobenzene units has been successfully synthesized. Its structure can be tuned by light and thermal stimuli as well as transition-metal coordination.

    8. An Improved Ruthenium Catalyst for the Environmentally Benign Amination of Primary and Secondary Alcohols (pages 403–410)

      Dirk Hollmann, Annegret Tillack, Dirk Michalik, Ralf Jackstell and Matthias Beller

      Version of Record online: 13 FEB 2007 | DOI: 10.1002/asia.200600391

      Thumbnail image of graphical abstract

      Let there be light: The N-alkylation of amines is catalyzed by a combination of [Ru3(CO)12] and N-phenyl-2-(dicyclohexylphosphanyl)pyrrole with excellent activity and selectivity. By applying this novel catalyst, a variety of functionalized alcohols and amines were converted into the corresponding secondary amines in high yield.

    9. A Novel Environmentally Benign Method for the Selective Oxidation of Alcohols to Aldehydes and Ketones (pages 411–415)

      Feng Shi, Man Kin Tse and Matthias Beller

      Version of Record online: 12 JAN 2007 | DOI: 10.1002/asia.200600383

      Thumbnail image of graphical abstract

      A potent combination: Hydrogen peroxide oxidizes aliphatic and benzylic alcohols to the corresponding aldehydes or ketones in the presence of [Ru(terpyridine)(2,6-pyridinedicarboxylate)] with high selectivity and without the need for co-catalysts or organic solvents. High catalyst productivity and activity are achieved with an optimized reaction protocol.

    10. Chemoselective C(sp3)[BOND]H Bond Activation for the Preparation of Condensed N-Heterocycles (pages 416–433)

      Hongjun Ren, Zhuo Li and Paul Knochel

      Version of Record online: 26 FEB 2007 | DOI: 10.1002/asia.200600398

      Thumbnail image of graphical abstract

      Bringing closure: Condensed N-heterocycles can be prepared by using C[BOND]H activation reactions catalyzed by Pd(OAc)2 and (p-tolyl)3P. The key step of these ring closures is chemoselective intramolecular C[BOND]H activation of the methyl group at position 2 of the pyrrole ring.

      Corrected by:

      Corrigendum: Chemoselective C(sp3)–H Activations for the Preparation of Condensed N-Heterocycles

      Vol. 10, Issue 9, 1812, Version of Record online: 28 AUG 2015

  5. Preview

    1. Top of page
    2. Cover Picture
    3. Graphical Abstract
    4. Focus Review
    5. Full Papers
    6. Preview
    1. Preview: Chem. Asian J. 4/2007 (page 439)

      Version of Record online: 26 FEB 2007 | DOI: 10.1002/asia.200790005

SEARCH

SEARCH BY CITATION