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Synthetic Methodologies (synthetic + methodology)

Distribution by Scientific Domains
Chemistry86%
Polymers and Materials Science13%

Kinds of Synthetic Methodologies

  • new synthetic methodology
    		•

    Selected Abstracts

    ChemInform Abstract: Novel Synthetic Methodologies.

    CHEMINFORM, Issue 43 2010
    -Amino Ketones, A Mild, Efficient Catalytic Mannich-Type Reaction as a Simple Access to N-Benzyloxycarbonyl
    Abstract as important substructures of various medicinally important substances [source]

    ChemInform Abstract: Novel Synthetic Methodologies.

    CHEMINFORM, Issue 23 2009
    Part 177.
    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: Novel Synthetic Methodologies.

    CHEMINFORM, Issue 7 2009
    -Amido Sulfones: Novel Substrates for the Practical, Baylis, Efficient Aza-Morita, Hillman Reaction under Neat Conditions., Part 167.
    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: Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 34 2008
    Part 152.
    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: Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 9 2008
    Part 141.
    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]

    Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 51 2007
    Part 149.
    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]

    Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 15 2007
    Part 113.
    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]

    Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 36 2006
    -Aminonitriles., Part 67. (Bromodimethyl)sulfonium Bromide Catalyzed One-Pot Synthesis of
    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]

    Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 19 2006
    Part 75.
    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]

    Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 16 2006
    Part 62.
    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]

    Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 50 2004
    Part 43.
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 34 2003
    Part 25.
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 28 2003
    Part 12.
    Abstract For Abstract see ChemInform Abstract in Full Text. [source]

    ChemInform Abstract: Studies on Novel Synthetic Methodologies.

    CHEMINFORM, Issue 20 2001
    Part 9.
    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]

    Coaxial Metal Nano-/Microcables with Isolating Sheath: Synthetic Methodology and Their Application as Interconnects

    ADVANCED MATERIALS, Issue 17 2010
    Min-Rui Gao
    Abstract Synthesis of coaxial nano-/microcables has been an intensive research subject due to their heterogeneous structures, tuneable properties, and important applications in nano-/micrometer-scale electronic and optoelectronic devices. Research on the fabrication of nanocables via solution strategies has made great progress in the past few years. In this Research News article, rapidly emerging new solution strategies such as hydrothermal carbonization (HTC) and synergistic soft,hard templates (SSHTs) are highlighted. Unique and flexible coaxial nano-/microcables synthesized by those methods have obvious advantages such as long-term stability and their electrical transport properties, compared with bare counterparts, suggesting that they are potential candidates as interconnects in the future. [source]

    ChemInform Abstract: A New Synthetic Methodology for the Pyrrolidine Ring.

    CHEMINFORM, Issue 31 2010
    Dalila Belei
    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: Synthetic Methodology for the Preparation of N-Hydroxysulfamides.

    CHEMINFORM, Issue 9 2008
    Krishnaswamy Devanathan
    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]

    New Synthetic Methodology for 3-Aminotropones.

    CHEMINFORM, Issue 10 2006
    Angel M. Montana
    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]

    ChemInform Abstract: Studies on Novel Synthetic Methodology.

    CHEMINFORM, Issue 9 2002
    Part 10.
    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]

    Synthetic Strategies for Controlling the Morphology of Proton Conducting Polymer Membranes,,

    FUEL CELLS, Issue 2 2005
    Y. Yang
    Abstract The nanostructure and morphology of proton conducting polymers is of considerable interest in the search for next generation materials and optimization of existing ones. Synthetic methodologies for tailoring molecular structures that promote nanoscopic phase separation of ionic and non-ionic domains, and the effect of phase separation on parameters such as proton conductivity, are considered. Rather than distinguish proton conducting polymers according to chemical class, they are categorized under sub-headings of random, block, and graft copolymers. The synthetic methodology available to access archetypal polymer structures is dependent on the nature of the monomers and restrictive compared to conventional non-ionic polymer systems. Irrespective of the methodology, ionic aggregation and phase separation are consistently found to play an important role in the proton conductivity of low ion exchange capacity,(IEC) membranes, but less of a role in high IEC membranes. Significant research is required to further develop relationships between polymer architecture, morphology, and electrolytic properties. [source]

    Efficient and Chirally Specific Synthesis of Phenanthro-Indolizidine Alkaloids by Parham-Type Cycloacylation

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 2 2010
    Ziwen Wang
    Abstract A concise, efficient and modular route involving Parham-type cycloacylation as the key step has been used to synthesize six enantiopure phenanthro-indolizidine alkaloids 1a,c. The preparation of enantiomerically pure tylophora alkaloids and their seco analogues on a large-scale is now feasible. The alcohol intermediates 8a,c, which are difficult to prepare by other synthetic methodologies, have been synthesized by a metallation,cyclization,reduction sequence in excellent yields. [source]

    Zeolite Catalysts with Tunable Hierarchy Factor by Pore-Growth Moderators

    ADVANCED FUNCTIONAL MATERIALS, Issue 24 2009
    Javier Pérez-Ramírez
    Abstract The design of hierarchical zeolite catalysts is attempted through the maximization of the hierarchy factor (HF); that is, by enhancing the mesopore surface area without severe penalization of the micropore volume. For this purpose, a novel desilication variant involving NaOH treatment of ZSM-5 in the presence of quaternary ammonium cations is developed. The organic cation (TPA+ or TBA+) acts as a pore-growth moderator in the crystal by OH, -assisted silicon extraction, largely protecting the zeolite crystal during the demetallation process. The protective effect is not seen when using cations that are able to enter the micropores, such as TMA+ Engineering the pore structure at the micro- and mesolevel is essential to optimize transport properties and catalytic performance, as demonstrated in the benzene alkylation with ethylene, a representative mass-transfer limited reaction. The hierarchy factor is an appropriate tool to classify hierarchically structured materials. The latter point is of wide interest to the scientific community as it not only embraces mesoporous zeolites obtained by desilication methods but it also enables to quantitatively compare and correlate various materials obtained by different synthetic methodologies. [source]

    Syntheses of chromenes and chromanes via o -quinone methide intermediates

    JOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 6 2009
    Sabrina B. Ferreira
    This review intends to explore synthetic methodologies for the preparation of 2H- chromenes and their analog chromanes through ortho -quinone methide (o -QM) intermediates associated with inter and intramolecular hetero-Diels-Alder and electrocyclization reactions. J. Heterocyclic Chem., (2009). [source]

    Efficient synthesis of organometallics of pyridines, quinolines and diazines: New synthetic methodologies for azaaromatic biomolecules

    JOURNAL OF HETEROCYCLIC CHEMISTRY, Issue 3 2000
    Guy Quéguiner
    First page of article [source]

    RAFTing down under: Tales of missing radicals, fancy architectures, and mysterious holes

    JOURNAL OF POLYMER SCIENCE (IN TWO SECTIONS), Issue 3 2003
    Christopher Barner-Kowollik
    Abstract This highlight describes recent developments in reversible addition,fragmentation transfer (RAFT) polymerization. Succinct coverage of the RAFT mechanism is supplemented by details of synthetic methodologies for making a wide range of architectures ranging from stars to combs, microgels, and blocks. In addition, RAFT reactions in different media such as emulsion and ionic liquids receive attention. Finally, a specific example of a novel material design is briefly introduced, whereas polymers prepared via RAFT are adopted for microporous/honeycomb membrane design. © 2002 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 41: 365,375, 2003 [source]

    Hydrophobically Directed Aldol Reactions: Polystyrene-Supported L -Proline as a Recyclable Catalyst for Direct Asymmetric Aldol Reactions in the Presence of Water,

    EUROPEAN JOURNAL OF ORGANIC CHEMISTRY, Issue 28 2007
    Michelangelo Gruttadauria
    Abstract A simple synthetic methodology for the preparation of a polystyrene-supported L -proline material is reported, and this material has been used as catalyst in direct asymmetric aldol reactions between several ketones and arylaldehydes to furnish aldol products in high yields and stereoselectivities. Screening of solvents showed that these reactions take place only in the presence of water or methanol, at lower levels of conversion in the latter case. This solvent effect, coupled with the observed high stereoselectivities, has been explained in terms of the formation of a hydrophobic core in the inner surface of the resin, whereas the hydrophilic proline moiety lies at the resin/water interface. Such a microenvironment both promotes the aldol reaction and increases the stereoselectivity. Recycling investigations have shown that this material can be reused, without loss in levels of conversion and stereoselectivity, for at least five cycles. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007) [source]

    Synthesis of [35S]aryl sulfonyl chlorides from [35S]elemental sulfur

    JOURNAL OF LABELLED COMPOUNDS AND RADIOPHARMACEUTICALS, Issue 4 2005
    Michael A. Wallace
    Abstract A new synthetic methodology that captures electrophilic 35S8 with aryl Grignard reagents or lithiates provides entry to a wide variety of [35S]aryl sulfonyl chlorides upon oxidation and chlorination. Copyright © 2005 John Wiley & Sons, Ltd. [source]

    Preparation, characterization, and binding profile of molecularly imprinted hydrogels for the peptide hepcidin

    JOURNAL OF POLYMER SCIENCE (IN TWO SECTIONS), Issue 8 2010
    Vincenzo Abbate
    Abstract Molecularly imprinted hydrogels for the capture of the peptide hormone hepcidin were prepared by water-in-oil (w/o) suspension polymerization under mild conditions. Spherical and relatively uniformly sized gel beads were routinely obtained after optimization of the synthetic methodology. The polymers were analyzed by Fourier transform infrared spectroscopy, optical microscopy, and scanning electron microscopy. Although the imprinted materials exhibited higher affinity towards the epitope template (hepcidin N -terminus) than their corresponding blank polymers, the full-length target peptide was found strongly bound to all the hydrogels tested. However, by using whole fluorescent hepcidin as the print species, the imprinting effect was more pronounced. Moreover, bovine serum albumin did not bind to the poly N -isopropylacrylamide (PNIPAm)-based polymers. Thus, polymeric "sponges" for biomacromolecules with size-exclusion effect were developed, useful for peptide concentration, immobilization and/or purification from serum samples. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 1721,1731, 2010 [source]

    Domino Diels,Alder Cycloadditions of Arynes: New Approach to Elusive Perylene Derivatives

    CHEMISTRY - A EUROPEAN JOURNAL, Issue 32 2010
    Alejandro Criado
    A game of dominos: Domino [4+2]/[4+2] cycloadditions between 1,8-difurylnaphthalene and arynes provide the corresponding adducts in a highly diastereoselective manner. This new synthetic methodology enables the preparation of elusive perylene derivatives with a remarkable reduced HOMO,LUMO gap, a crucial feature for organic semiconductors. [source]