The molecular structure of bromo(ethyl)((-)-sparteine)magnesium(II), a catalyst for the asymmetric-selective polymerization of racemic methacrylates.

スポンサーリンク

概要

• 論文の詳細を見る

• The molecular structure of EtMgBr-(−)-sparteine, which initiates asymmetric (enantiomer) selective polymerization of racemic methacrylates, has been determined by means of X-ray diffraction. The crystal is orthorhombic, space group <I>P</I>2<SUB>1</SUB>2<SUB>1</SUB>2<SUB>1</SUB>, <I>a</I>=11.278(2), <I>b</I>=14.112(3), <I>c</I>=11.746(2) Å, <I>Z</I>=4. The structure was established by the heavy atom method and refined by the block-diagonal least-squares procedure: <I>R</I>=0.100 for 1272 non-zero reflections. The Mg atom is tetrahedrally coordinated by the Et group, Br and two N atoms of the (−)-sparteine.

• 公益社団法人 日本化学会の論文

著者

• Kageyama Hiroyuki

  Department For Energy Conversion Osaka National Research Institute

• Kasai Nobutami

  Department Of Applied Biological Science Tokyo University Of Science

• Tanaka Nobuo

  Department Of Agro-environmental Sciences Graduate School Of Bioresource And Bioenvironmental Scienc

• Okamoto Yoshio

  Department Of Applied Chemistry Faculty Of Engineering Nagoya University

• Yuki Heimei

  Department of Polymer Science Faculty of Science Osaka University

• Miki Kunio

  Department of Applied Chemistry, Faculty of Engineering, Osaka University

• Yuki Heimei

  Department of Applied Chemistry, Faculty of Engineering, Osaka University

関連論文

• Reversible Endothelial Dysfunction by Smoking Cessation in Healthy Young Smokers(Advances in Nuclear Cardiology (I), The 69th Annual Scientific Meeting of the Japanese Circulation Society)
• OJ-244 Impact of Smoking Cessation on Myocardial Blood Flow Dynamics Assessed with O-15 labeled Water and PET in Healthy Young Smokers(Nuclear Cardiology 6 (I) : OJ28)(Oral Presentation (Japanese))
• OE-021 Sympathetic Denervation and Reinnervation after Maze Procedure Assessed by I-123 MIBG SPECT(Nuclear Cardiology 1 (I) : OE3)(Oral Presentation (English))
• Interval immobilization technique for recognition toward a highly hydrophilic cyanobacterium toxin
• On-column concentration of bisphenol A with one-step removal of humic acids in water
• Time-Resolved High-Resolution Electron Microscopy of Surface-Diffusion of Tungsten Atoms on MgO (001) Surfaces
• Crystal Structure of H_2-Proteinase from the Venom of Trimeresurus flavoviridis
• Crystallization and Preliminary X-Ray Studies of Isocitrate Dehydrogenase from Thermus thermophilus HB8
• Crystallization and Preliminary X-Ray Study of H_2-Proteinase from the Venom of Trimeresurus flavoviridis
• The Crystal Structures of Mutated 3-Isopropylmalate Dehydrogenase from Thermus thermophilus HB8 and Their Relationship to the Thermostability of the Enzyme
• Anion- and Cation-Exchange MicroHPLC Utilizing Poly(methacrylates)-coated Monolithic Silica Capillary Columns
• Properties of Monolithic Silica Columns for HPLC
• An Examination of the Gelation of Methacrylate Type Crosslinking Agents for the Preparation of Polymer Monolith with 3D Ordered Network Structures
• Novel Surface-modified Molecularly Imprinted Polymer Focused on the Removal of Interference in Environmental Water Samples
• Improved Detectability with a Polymer-based Trapping Device in Rapid HPLC Analysis for Ultra-low Levels of Bisphenol A (BPA) in Environmental Samples
• Capillary Electromatography on Monolithic Silica Columns
• Selective Surface Modification Technique for Improvement of Chromatographic Separation Selectivity for Sugar Derivatives
• Design for Valid "Surface" Property of Polymer-based Separation Media for Capillary Electrochromatography (CEC) : Correlation between Separation Selectivity, Retentivity and Generation of Electroosmotic Flow
• Molecularly Imprinted Uniform-Sized Polymer-Based Stationary Phase for Naproxen
• Uniformly Sized Polymer Based Stationary Phase Having Multi-Chiral Selectors
• Uniform-size Macroporous Polymer-based Stationary Phase for HPLC Prepared through Molecular Imprinting Technique
• Possible Solution to Discord between Void Volume Recovery of Polypeptide and Separation of Drugs with Restricted-access Type Polymer-based Separation Media for HPLC
• Unexpected Effects of Seed Polymer on the Porous Structures of Poly(methyl methacrylate-ethylene glycol dimethacrylate) Particles
• Magnetic Properties of Codeposited Fe/MgO Composite Films
• FRS-114 Heterogeneous Myocardial Oxidative Metabolism in Patients with Left Bundle Branch Block and Right Ventricular Pacing(Nuclear Cardiology (I) : FRS14)(Featured Research Session (English))
• Relationship between T_c and Cu Valence and Bond Lengths of Cu-Cu and Cu-O for Ba_Eu_Cu_3O_ Compounds
• In-vitro assessment of fabric structural composite scaffold applicable to tissue regeneration around implants
• Effects of hand shapeand posture on vascular hunting reaction of hand
• Structure of the Zinc Endoprotease from Streptomyces caespitosus^1
• Electron Energy-Loss Spectroscopy of Carbon Films Prepared by Electron-Cyclotron-Resonance Plasma Sputtering
• Crystallization and Preliminary X-Ray Analysis of Cytochrome c-554 from Nitrosomonas europaea
• Improvement of Alkaliphily of Bacillus Alkaline Xylanase by Introducing Amino Acid Substitutions Both on Catalytic Cleft and Protein Surface
• Production of Single-Wall Nanotubes by High-Temperature Pulsed Arc Discharge:Mechanisms of their Production
• A Calcium-Dependent Xylan-Binding Domain of Alkaline Xylanase from Alkaliphilic Bacillus sp. Strain 41M-1
• Room Temperature Molten Salts Based on Tetraalkykammonium Cations and Bis(trifluoromethylsulfonyl)imide
• Highly Sensitive Sizing Response Induced by 2-Bromination of Fatty Acids and their Pairing with Anchor Sites Formed on Paper Surfaces
• Electron Microscopy of Composite Films of Titanium and Magnesium Oxide
• High Resolution Electron Microscopy of Composite Films of Iron and Magnesium Oxide
• High Resolution Electron Microscopy of Composite Films of Gold and Magnesium Oxide
• The Crystal Structure of the Polymerization Catalyst of Acetaldehyde and Its Derivatives. IV. The Crystal and Molecular Structure of Dimethylaluminum N-Phenylbenzimidate-O-(Trimethylaluminum)-Acetaldehyde Complex, [(CH3)2
• The Crystal Structure of the Polymerization Catalyst of Acetaldehyde and Its Derivatives. III. The Crystal and Molecular Structure of the Bis(dimethylaluminum N-Phenylbenzimidate-Acetaldehyde) Complex, [(CH3)2Al·O·C(C6
• The Crystal Structure of the Polymerization Catalyst of Acetaldehyde and Its Derivatives. II. The Crystal and Molecular Structure of the Trimethylamine Oxide Adduct of Dimethylaluminum N-Phenylbenzimidate, [(CH3)2Al·O·C(C
• The crystal and molecular structure of anhydrous zinc 8-quinolinolate complex, (Zn(C9H6NO)2)4.
• The crystal structure of N-methylviologenium 2-dicyanomethylene-1,1,3,3-tetracyanopropanediide,((CH3NC5H4C5H4NCH3)2+(C10N6)2-).
• The crystal and molecular structures of 4-ethyl-3,5-bis(phenylimino)-1,2,4-dithiazolidine and 2-ethyl-4-phenyl-5-phenylimino-1,2,4-thiadiazolidin-3-thione.
• Molecular structures of (2)(2,5)(7,7,8,8-tetracyanoquinodimethano)(2)paracyclophane and 14,17-dimethoxy(2)(2,5)(7,7,8,8-tetracyanoquinodimethano)(2)paracyclophane.
• The crystal and molecular structure of N-ethylcarbazole.
• The crystal and molecular structure of 2,3,6,8,9-pentaphenyl-1-thia-6-azaspiro(4.4)nona-2,8-diene-4,7-dione.
• The crystal structure of 2,11,20-trithia(3.3.3)(1,2,4)(1,3,5)cyclophane and molecular structures of unsymmertically tris-bridged (2.2.2)(1,2,4)(1,3,5) and (2.2.2)(1,2,4)(1,2,5)cyclophanes, estimated by molecular conformational analysis.
• Crystal and Molecular Structure of Di-μ-chloro-bis(π-1-ethoxycarbonyl-2-hydroxyallyl)dipalladium(II)
• The crystal and molecular structure of syn-(2.2)(1,4)-anthracenophane and its photoisomer.
• The molecular structure of bromo(ethyl)((-)-sparteine)magnesium(II), a catalyst for the asymmetric-selective polymerization of racemic methacrylates.
• The crystal and molecular structure of 2:2 complex of 1,1,6,6-tetraphenyl-2,4-hexadiyne-1,6-diol (DD) with 1-methyl-2-(3-pyridyl)pyrrolidine (nicotine).
• The crystal and molecular structure of strontium bis(thiocyanate)-hexaethylene glycol (1/1)
• The crystal structure of (acetylacetonato)bis(diethylamine)palladium(II) acetylacetonate at -170.DEG.C.
• Three-dimensionally-modified tetracyanoquinodimethanes and their charge-transfer complexes with tetrathiafulvalene derivatives having a wide range of ionicity.
• Stopped-flow small-angle X-ray scattering study on the acid-denaturation of Taka-amylase A.
• The molecular structure of the heterodinuclear organometallic complex of platinum and tungsten, phenyl(1,5-cyclooctadiene)platinum-tricarbonyl(.ETA.5-cyclopentadienyl)tungsten.
• The Crystal Structure of 2,4,6-Triphenylpyrylium-1,1,3,3-tetracyanopropenide, [(C23H17O)+·(C7HN4)−]
• The crystal and molecular structures of dichloro-1,2-bis(di-t-butylphosphino)-ethaneplatinum(II) and its chlorobenzene solvate.
• The crystal and molecular structure of (acetylacetonato)(carboxymethyl)-(triphenylphosphine)palladium(II).
• Chemistry of dienyl anions. II. Crystalline bis(dienyl)magnesium. Selective dienylation and structure in solution and in the solid state.
• The crystal and molecular structure of 6-bromo(2.2)paracyclo(4,8)(2.2)metaparacyclophane.
• The molecular structure of tricarbonyl(triple-layered[2.2]paracyclophane)chromium at -95.DEG.C(monoclinic form) and -160.DEG.C(triclinic form).
• The Crystal Structure of 1-Ethyl-2-methylquinolinium Iodide, [(C12H14N)+·I−]
• Chemistry of dienyl anions. III. Crystalline bis(2,4-pentadienyl)metal compounds of Be and Zn. Terminally .SIGMA.-bonded structure and fluxional 1,5-rearrangement.
• The crystal and molecular structure of tetracyclo[6.4.3.0.02,7]pentadec-4-en-13-one.
• Molecular structure of (2)(2,5)(7,7,8,8-tetracyanoquinodimethano)-(2)(1,4)naphtalenophane.
• Molecular Structures of Trichlorovinyl(p-tolyl)nickel(II) Complex, and Its Thermal and Photo Isomerization Products.
• The molecular structure of 1-phenoxy-1,2,2a,8b-tetrahydrocyclobuta[a]naphthalene-8b-carbonitrile.
• The crystal and molecular structures of trans-dichlorobis(dimethylneomenthylphosphine)palladium(II) and trans-dichlorobis(dimethylmenthylphosphine)palladium(II), asymmetric hydrosilylation catalysts of olefin.
• The molecular structures of (+)-6-benzylsparteine, (ethyl)(bromo)((+)-6-benzylsparteine)magnesium(II), and dibromo((+)-6-benzylsparteine)magnesium(II). Structure and reactivity of the Grignard reagent-(-)-sparteine derivative complexes for asymmetric sele
• The molecular structures of thiomethoxymethylbis(triphenylphosphine)-palladium hexafluorophosphate and perchlorate at -160 .DEG.C.
• The Crystal and Molecular Structure of Dimethyltin Chloride N,N-Dimethyldithiocarbamate
• The crystal and molecular structure of 12-bromo(2.2)(2.2)triple-layered paracyclophane.
• Conformational analysis of methacrylates by IR and 1H NMR spectroscopies.
• The crystal and molecular structure of diphenyl-2-pyridylmethyl methacrylate.
• The molecular structures of (t-butyl)(chloro)((-)-sparteine)magnesium(II) and dichloro((-)-sparteine)magnesium(II).
• The X-ray and NMR studies on the regio- and stereoselective courses for insertion of ketones into the s-cis- and s-trans-diene complexes of zirconium leading to (Z)-1,2-oxazirconacyclohept-4-enes.
• The structure and reactivity of (Zn(OMe)2 (EtZnOMe)6).
• The crystal and molecular structure of (acetylacetonato)-(diacetylmethyl)(diethylamine)palladium(II).
• The crystal and molecular structure of dichloro[1,3-bis(di-t-butylphosphino)propane]platinum(II) chlorobenzene solvate.
• The crystal and molecular structures of three (acetylacetonato)-organoantimony(V) compounds, [(acac)RnSbX4-n].
• The X-ray structure determination of heptaethylene glycol-Sr(SCN)2.
• The crystal and molecular structures of trans-bis(trimethylphosphine)[1,2-bis(methoxycarbonyl)vinyl](phenylethynyl)palladium(II).
• The molecular structure of a Schiff base complex, [N,N'-ethylenebis-(1-phenyl-2-imino-1-butanonato)](acetonitrile)-manganese(III) perchlorate.
• The crystal and band electronic structures of bis(4,5-ethylenedithio-4',5'-(vinylenedithio)tetrathiafulvalenium)hexafluorophosphate, and hexafluoroarsenate (EVT2PF6 and EVT2AsF6).
• The synthesis of 4,5-ethylenedithio-4',5'-vinylenedithiotetrathiafulvalene(EVT) and its methyl and dimethyl derivatives (EMVT, EDMVT), and the molecular and crystal structures of EVT.
• The Molecular Structure of the Reaction Product from Sulfurdiimide and Diphenylketene
• The crystal and molecular structure of 1:2 molecular complex of 1,4-diazabicyclo[2.2.2]octane(DABCO) with p-cresol.
• Coenzyme models. 50. Elavin activation by intramolecular acid catalysis at N(1) position.
• The Crystal Structure of 1,4-Bis(p-bromophenoxy) butane
• The Crystal Structure of Quinolinium 2-Dicyanomethylene-1,1,3,3-tetracyanopropanediide, [2(C9NH8)+·(C10N6)2−]
• The Crystal and Molecular Structure of trans-Bis(trimethylphosphine)propynyl-1-(4′-dicyanomethylene-cyclohexa-2′-5′-dien-1-ylidenl-3,3-dicyano-2-methyl-prop-2-en-1-ylplatinum, a Reaction Product of trans-Bis(trimethylphosphine)bis(propynyl)p
• X-ray molecular structure of 1-cyano-7,8-benzo-11-oxatricyclo-[4.2.2.12,5]undeca-3,7,9-triene.
• The crystal and molecular structures of bis[1,2-bis(methylthio)vinylenedithio]-tetrathiafulvalene (TMTVT).
• The crystal and molecular structure of inner triple-layered paracyclophanequinone.
• The crystal and molecular structure of two triple-layered metaparacyclophanes.
• C,O-chelates of the trifluoroacetylacetonate dianion with palladium(II). Molecular structure of (Pd(tfac(2-)-C,O)(PPh3)(2,6-Me2-py))
• The crystal structure of bis(acetylacetonato)platinum(II) benzene solvate.

もっと見る 閉じる

スポンサーリンク