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Highly Efficient (highly + efficient)
Terms modified by Highly Efficient Selected AbstractsSynthesis of New Phenanthroline-Based Heteroditopic Ligands , Highly Efficient and Selective Fluorescence Sensors for Copper(II) IonsEUROPEAN JOURNAL OF INORGANIC CHEMISTRY, Issue 21 2006Peter Comba Abstract The heteroditopic phenanthroline derivatives 5,6-bis(2-pyridylcarboxamido)-1,10-phenanthroline (H2L1) and 5,6-bis[(4-methoxy-2-pyridyl)carboxamido]-1,10-phenanthroline (H2L2) have been prepared and characterized, together with their luminescent ruthenium(II) complexes [Ru(bpy)2(H2L1,2)](PF6)2 and [Ru(H2L1)3](PF6)2 and the corresponding iron(II) complex [Fe(H2L1)3](PF6)2. In these complexes, the metal ion is coordinated by the bidentate phen site of H2L. The luminescence of the ruthenium complexes (,ex = 450 nm, ,em ca. 620 nm) is completely quenched by Cu2+ ions in the micromolar concentration range and, to a lesser extent, by other metal ions. At pH 5, the response of the luminescent sensors is highly Cu2+ -selective. Heterodinuclear complexes [Ru(bpy)2(LM)](PF6)2, [Ru(LM)3](PF6)2, and [Fe(LM)3](PF6)2 have been isolated for M = Cu2+, Ni2+, Co2+, and Pd2+. It is suggested that M is coordinated to the tetradentate N4 site of L by two deprotonated amide N atoms and two pyridyl groups. This coordination type is confirmed by the EPR spectrum of the compound [RuII(bpy)2(L1CuII)](PF6)2.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006) [source] A Novel, Highly Efficient, One-Pot Synthesis of 1,4-Dihydroquinoline Derivatives in the Presence of a Pd(OAc)2/DABCO Catalytic SystemEUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 29 2009Xiao-Jin Wu Abstract The Pd(OAc)2/DABCO catalytic system was first found to be highly efficient for C,N cross-coupling reactions. With the aid of this transformation, a variety of new 1,4-dihydroquinoline derivatives were synthesized from o -halobenzaldehydes and various ,-enaminones in good to excellent yields. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [source] Combined Confocal Microscopy and Stereology: a Highly Efficient and Unbiased Approach to Quantitative Structural Measurement in TissuesEXPERIMENTAL PHYSIOLOGY, Issue 6 2002Katherine Howell Understanding the relationship of the structure of organs to their function is a key component of integrative physiological research. The structure of the organs of the body is not constant but changes, both during growth and development and under conditions of sustained stress (e.g. high altitude exposure and disease). Recently, powerful new techniques have become available in molecular biology, which promise to provide novel insights into the mechanisms and consequences of these altered structure-function relationships. Conventionally structure-function relationships are studied by microscopic examination of tissue sections. However, drawing conclusions about the three-dimensional structure of an organ based on this two-dimensional information frequently leads to serious errors. The techniques of stereology allow precise and accurate quantification of structural features within three-dimensional organs that relate in a meaningful way to integrated function. For example, knowledge of changes in the total surface area of the capillary endothelium in an organ can be related directly to changes in fluid filtration and permeability, or knowledge of total vessel length and mean radius allows deductions about vascular resistance. Confocal microscopy adds enormously to the power of stereological approaches. It reduces the difficulties and labour involved in obtaining suitable images. Moreover, when used in conjunction with new analytical software, it allows convenient application of stereology to small samples and those in which it is essential to maintain a specific orientation for interpretation. The information obtained will allow us to examine in a quantitative manner the altered structure-function relationships produced by manipulation of single genes and regulatory pathways in whole organisms. [source] Dye-Doped Polyhedral Oligomeric Silsesquioxane (POSS)-Modified Polymeric Matrices for Highly Efficient and Photostable Solid-State LasersADVANCED FUNCTIONAL MATERIALS, Issue 20 2009Roberto Sastre Abstract Here, the design, synthesis, and characterization of laser nanomaterials based on dye-doped methyl methacrylate (MMA) crosslinked with octa(propyl-methacrylate) polyhedral oligomeric silsesquioxane (8MMAPOSS) is reported in relation to their composition and structure. The influence of the silicon content on the laser action of the dye pyrromethene 567 (PM567) is analyzed in a systematic way by increasing the weight proportion of POSS from 1 to 50%. The influence of the inorganic network structure is studied by replacing the 8MMAPOSS comonomer by both the monofunctionalized heptaisobutyl-methacryl-POSS (1MMAPOSS), which defines the nanostructured linear network with the POSS cages appearing as pendant groups of the polymeric chains, and also by a new 8-hydrogenated POSS incorporated as additive to the polymeric matrices. The new materials exhibit enhanced thermal, optical, and mechanical properties with respect to the pure organic polymers. The organization of the molecular units in these nanomaterials is studied through a structural analysis by solid-state NMR. The domain size of the dispersed phase assures a homogeneous distribution of POSS into the polymer, thus, a continuous phase corresponding to the organic matrix incorporates these nanometer-sized POSS crosslinkers at a molecular level, in agreement with the transparency of the samples. The silicon,oxygen core framework has to be covalently bonded into the polymer backbone instead of being a simple additive and both the silica content and crosslinked degree exhibit a critical influence on the laser action. [source] Fluorene-Based Oligomers for Highly Efficient and Stable Organic Blue-Light-Emitting DiodesADVANCED MATERIALS, Issue 23 2009Chang-Gua Zhen Highly efficient and stable blue-light-emitting materials consisting of oligofluorenyl blocks and charge transporting segments are synthesized. The external quantum efficiencies of the solution-processed light-emitting diodes were of up to 6.1% and 8.6% for undoped and doped devices, respectively. The exceedingly high efficiency and excellent stability of these devices suggest that these new developed materials are very promising for deep-blue-light OLEDs. [source] A Facile Synthesis Approach to C8 -Functionalized Magnetic Carbonaceous Polysaccharide Microspheres for the Highly Efficient and Rapid Enrichment of Peptides and Direct MALDI-TOF-MS AnalysisADVANCED MATERIALS, Issue 21 2009Hemei Chen Biocompatible C8 -functionalized magnetic carbonaceous polysaccharide microspheres are synthesized via a facile, low-cost, and large-scale route, and their use for the enrichment of peptides from protein digest mixtures is presented. The process of enrichment is very simple, quick, and efficient. Peptides loaded onto the C8 -functionalized magnetic carbonaceous polysaccharide microspheres can be directly analyzed by MALDI-TOF-MS without prior elution from the microspheres. [source] A Highly Efficient, Metal-Free and Convenient Diarylallyl Ether/Thioether Formation via Oxidative C-H ActivationADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 6 2009Yan Li Abstract A metal free highly efficient and concise oxidative-coupling ether formation between 1,3-diarylallylic sp3 C-H and aliphatic alcohols promoted by 2,3-dichloro-5,6-dicyanoquinone (DDQ) is reported. This system is also applied to form CS bonds from 1,3-diarylpropylene and thiols/thiophenols. The corresponding diarylallyl ethers/thioethers are obtained in good yields. [source] N -Acyliminium Ion Chemistry: Highly Efficient and Versatile Carbon,Carbon Bond Formation by Nucleophilic Substitution of Hydroxy Groups Catalyzed by Sn(NTf2)4ANGEWANDTE CHEMIE, Issue 4 2010Othman Dr., Raja Ben Atomökonomisch: Nichtmodifizierte N,O-Halbacetale wurden in einer katalytischen, hocheffizienten ,-Amidoalkylierung kohlenstoffzentrierter Nucleophile eingesetzt, darunter Siliciumverbindungen, aktive Methylenderivate, elektronenreiche Arene und selbst einfache Ketone (siehe Schema). In der Regel genügt 1,Mol-% des supersauren Lewis-Reagens Sn(NTf2)4 als Katalysator. [source] ChemInform Abstract: Highly Efficient and Versatile Pd-Catalyzed Direct Alkynylation of Both Azoles and Azolines.CHEMINFORM, Issue 34 2010Seok Hwan Kim Abstract Aromatic and aliphatic bromoacetylenes are applied to the reaction with a variety of the heterocyclic compounds as oxazoles, benzoxazoles, imidazoles, benzimidazoles, benzothiazoles and a fused oxazole. [source] ChemInform Abstract: N-Acyliminium Ion Chemistry: Highly Efficient and Versatile Carbon,Carbon Bond Formation by Nucleophilic Substitution of Hydroxy Groups Catalyzed by Sn(NTf2)4.CHEMINFORM, Issue 21 2010Raja Ben Othman Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Highly Efficient and Chemoselective Reduction of Sulfoxides Using the System Silane/Oxo-Rhenium Complexes.CHEMINFORM, Issue 11 2010Sara C. A. Sousa Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: A Highly Efficient and Widely Functional-Group-Tolerant Catalyst System for Copper(I)-Catalyzed S-Arylation of Thiols with Aryl Halides.CHEMINFORM, Issue 11 2010Yang Feng Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Rapid, Highly Efficient and Chemoselective Trimethylsilylation of Alcohols and Phenols with Hexamethyldisilazane (HMDS) Catalyzed by Reusable Electron-Deficient Tin(IV)porphyrin.CHEMINFORM, Issue 10 2010Majid Moghadam Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Highly Efficient and Versatile Synthesis of Polyarylfluorenes via Pd-Catalyzed C,H Bond Activation.CHEMINFORM, Issue 9 2010Seung Jun Hwang Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Copper Acetate-Catalyzed, Mild, Highly Efficient, and Practical Synthesis of Thiazoles and Aminothiazoles.CHEMINFORM, Issue 51 2009H. M. Meshram Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: A Highly Efficient, Metal-Free and Convenient Diarylallyl Ether/Thioether Formation via Oxidative C,H Activation.CHEMINFORM, Issue 34 2009Yan Li Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Friedlaender Synthesis of Poly-Substituted Quinolines in the Presence of Dodecylphosphonic Acid (DPA) as a Highly Efficient, Recyclable and Novel Catalyst in Aqueous Media and Solvent-Free Conditions.CHEMINFORM, Issue 18 2009S. Ghassamipour Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Highly Efficient and Catalyst-Free Synthesis of Unsymmetrical Thioureas under Solvent-Free Conditions.CHEMINFORM, Issue 14 2009Azim Ziyaei Halimehjani Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: First Example of Organocatalysis by Polystyrene-Supported PAMAM Dendrimers: Highly Efficient and Reusable Catalyst for Knoevenagel Condensations.CHEMINFORM, Issue 3 2009G. Rajesh Krishnan Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Highly Efficient and Stereoselective Julia,Kocienski Protocol for the Synthesis of ,-Fluoro-,,,-unsaturated Esters and Weinreb Amides Employing 3,5-Bis(trifluoromethyl)phenyl (BTFP) Sulfones.CHEMINFORM, Issue 50 2008Diego A. Alonso Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Zinc Oxide,Tetrabutylammonium Bromide Tandem as a Highly Efficient, Green, and Reusable Catalyst for the Michael Addition of Pyrimidine and Purine Nucleobases to ,,,-Unsaturated Esters under Solvent-Free Conditions.CHEMINFORM, Issue 39 2008Abdolkarim Zare Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: A Highly Efficient and Selective Au(I)-Catalyzed Tandem Synthesis of Diversely Substituted Pyrrolo[1,2-a]quinolines in Aqueous Media.CHEMINFORM, Issue 36 2008Xin-Yuan Liu Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Highly Efficient and Versatile Chemoselective Addition of Amines to Epoxides in Water Catalyzed by Erbium(III) Triflate.CHEMINFORM, Issue 28 2008Antonio Procopio Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Highly Efficient, Four Component, One-Pot Synthesis of Tetrasubstituted Imidazoles Using a Catalytic Amount of FeCl3×6H2O.CHEMINFORM, Issue 15 2008Majid M. Heravi Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] A Highly Efficient and Useful Synthetic Protocol for the Synthesis of Bis[aryl(diethoxyphosphoryl)methyl]amines from Aromatic Aldehydes Using Acetyl Chloride as an Efficient Catalyst.CHEMINFORM, Issue 43 2007Babak Kaboudin Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Regioselectivity in a Highly Efficient, Microwave-Assisted Epoxide Aminolysis.CHEMINFORM, Issue 29 2007Hinal Desai Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Oxidative Palladium(II) Catalysis: A Highly Efficient and Chemoselective Cross-Coupling Method for Carbon,Carbon Bond Formation under Base-Free and Nitrogenous-Ligand Conditions.CHEMINFORM, Issue 18 2007Kyung Soo Yoo Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Ionic Liquid Grafted Mn(III),Schiff Base Complex: A Highly Efficient and Recyclable Catalyst for the Epoxidation of Chalcones.CHEMINFORM, Issue 3 2006Yanqing Peng Abstract For Abstract see ChemInform Abstract in Full Text. [source] Rapid, Highly Efficient and Stereoselective Deoxygenation of Epoxides by ZrCl4/NaI.CHEMINFORM, Issue 38 2005Habib Firouzabadi Abstract For Abstract see ChemInform Abstract in Full Text. [source] An Economical, Highly Efficient and Recyclable Catalyst System for Asymmetric Dihydroxylation of Olefins.CHEMINFORM, Issue 35 2005Ying Jin Abstract For Abstract see ChemInform Abstract in Full Text. [source] | ||||||||||||||||||||||||||||||||||||||||