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Dissertations / Theses on the topic 'THF (Tetrahydrofuran)'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Rojas, González Yenny V. "Tetrahydrofuran and natural gas hydrates formation in the presence of various inhibitors." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/2332.

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The aim of this thesis is to investigate the formation process of tetrahydrofuran (THF) hydrates and natural gas hydrates, and the effect of kinetic hydrate inhibitors (KHIs) on the formation and growth of these hydrates. Kinetic experiments were conducted in pressure cells in the presence of, or without, KHIs. Interfacial and electrokinetic techniques, including surface tension, Langmuir monolayers and zeta potential, were used to study the adsorption preferences of the inhibitors in two different interfaces, air–liquid and hydrate–liquid. For comparison purposes, selected thermodynamic hydra

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2

Rabeau, Sophie. "Étude d'un procédé continu de microencapsulation basé sur un micromélangeur." Thesis, Vandoeuvre-les-Nancy, INPL, 2009. http://www.theses.fr/2009INPL096N/document.

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Cette étude se concentre sur l'influence des conditions hydrodynamiques et de mélange sur les caractéristiques de microcapsules obtenues par inversion/précipitation. Ce processus est classiquement exécuté dans une cuve agitée alors qu'il a été montré que l'exécution de procédés de fabrication de produits chimiques peut être améliorée en utilisant des microtechnologies en raison du meilleur contrôle hydrodynamique et de l'intensification des échanges de chaleur et de matières. Donc, afin d'évaluer l'avantage potentiel de ces nouvelles technologies, des microcapsules de parfum enrobé dans du PMM

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3

Marsh, Paul Robert. "3-Azido-tetrahydrofuran carboxylates as scaffolds for oligomers of β-amino-THF carboxylic acids". Thesis, University of Oxford, 2002. https://ora.ox.ac.uk/objects/uuid:749edfc8-8e18-4811-9247-8e29a3f54c7b.

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This thesis describes investigations into the synthesis and secondary structural properties of novel carbohydrate-derived peptidomimetics. The syntheses from diacetone-D-glucose of five diastereomeric 3-azido-tetrahydrofuran carboxylates are described. These highly functionalised β-amino acid equivalents are accessed via the diacetone-3-azido-3-deoxy sugars and 3-azido-3-deoxy-1,4-lactones. An acid-catalysed rearrangement results in the formation of the tetrahydrofuran ring with the protected amine functionality already in place in a position β- to the carboxylate group. Attempts to synthesise

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4

Melnik, Dmitry Georgievich. "Submillimeter wave absorption spectroscopy in the free jet environment." Connect to this title online, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1055870713.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xxv, 475 p.; also includes graphics Includes bibliographical references (p. 469-475). Available online via OhioLINK's ETD Center

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5

Martin, Ana Isabel. "Hydrate Bearing Sediments-Thermal Conductivity." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6844.

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The thermal properties of hydrate bearing sediments remain poorly studied, in part due to measurement difficulties inside the hydrate stability envelope. In particular, there is a dearth of experimental data on hydrate-bearing sediments, and most available measurements and models correspond to bulk gas hydrates. However, hydrates in nature largely occur in porous media, e.g. sand, silt and clay. The purpose of this research is to determine the thermal properties of hydrate-bearing sediments under laboratory conditions, for a wide range of soils from coarse-grained sand to fine-grained silica f

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6

Lemelin, Vincent. "Mesure de sections efficaces absolues vibrationnelles pour la collision d’électrons de basse énergie (1-19 eV) avec le tétrahydrofurane (THF) condensé." Mémoire, Université de Sherbrooke, 2016. http://hdl.handle.net/11143/9467.

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Résumé: Ce mémoire de maîtrise est une étude des probabilités d’interactions (sections efficaces) des électrons de basse énergie avec une molécule d’intérêt biologique. Cette molécule est le tétrahydrofurane (THF) qui est un bon modèle de la molécule constituant la colonne vertébrale de l’ADN; le désoxyribose. Étant donné la grande quantité d’électrons secondaires libérés lors du passage des radiations à travers la matière biologique et sachant que ceux-ci déposent la majorité de l’énergie, l’étude de leurs interactions avec les molécules constituant l’ADN devient rapidement d’une grande impor

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7

Dey, Rabindra. "Studies on the ion-solvent interactions of tetraalkylammonium and common ions in tetrahydrofuran and its binary mixtures." Thesis, University of North Bengal, 2005. http://hdl.handle.net/123456789/773.

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8

Winstead, Rhonda Carol. "The Stereospecific Synthesis of Tetrahydropyrans and Tetrahydrofurans." W&M ScholarWorks, 1986. https://scholarworks.wm.edu/etd/1539625348.

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9

Head, Geoffrey Douglas. "Oxidative approaches to the synthesis of bis-tetrahydrofuran Annonaceous acetogenins." Thesis, University of Southampton, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401826.

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10

Butterworth, Sam. "The preparation of stereodefined tetrahydrofurans : oxidative cyclisation using catalytic osmium tetroxide." Thesis, University of Oxford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.413978.

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11

Rabiller, Delphine S. "Formation of 2,5-trans-tetrahydrofuran-3-one application towards the synthesis of natural products." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/1345/.

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The tetrahydrofuran backbone is one of the most common heterocyclic units found in natural products. Among them structurally complex substituted tetrahydrofuran rings which present a 2,5-trans stereochemistry have been of particular interest to many groups as polyether antibiotics and highly biologically active compounds, such as the potent anti cancer Amphidinolide, possess this kind of backbone. Different methodologies to synthesise this kind of structure have been developped starting in the late 70’s. The first efficient methodology was published by Fukuyama in Tetrahedron Letters in 1978.

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12

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1263899.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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13

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1265279.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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14

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1263921.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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15

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1251268.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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16

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1264041.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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17

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1263959.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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18

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1265359.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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19

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1266684.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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20

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1265259.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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21

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1251349.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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22

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1263981.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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23

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1264019.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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24

NICOLINI, CORRADO. "Gold(I)-catalyzed intramolecular enantioselective hydroalkoxylation reaction for the total synthesis of metabolites containing the tetrahydrofuran core." Doctoral thesis, Università degli studi di Pavia, 2019. http://hdl.handle.net/11571/1251309.

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Several natural products and biologically active compounds present oxygenated five- membered rings as structural motif. In particular, substituted tetrahydrofurans are commonly occurring building blocks found both within terrestrial and marine metabolites. These substances exhibit a wide range of biological activities such as anti-microbial, anti- tumoral, anthelmintic, anti-malarial and anti-protozoal. As such, over the last decades, considerable efforts have been devoted towards the development of efficient and completely stereoselective strategies for the construction of substituted THF rin

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25

Grauer, Andreas. "Synthetic receptors for the differentiation of phosphorylated peptides and synthesis and use of tetrahydrofuran amino acids." kostenfrei, 2009. http://epub.uni-regensburg.de/13399/.

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26

Bhandare, Richie R. "Investigation into the bioisosteric approach in the design, synthesis and evaluation of muscarinic receptor ligands." Diss., Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/214985.

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Pharmaceutical Sciences<br>Ph.D.<br>The acetylcholine (ACh) receptor system belongs to rhodopsin GPCR family and is an integral membrane protein divided into two types: muscarinic and nicotinic. The naturally occurring neurotransmitter acetylcholine binds to these two receptor systems non- selectively. The regulatory effects of the neurotransmitter acetylcholine are diverse ranging from autonomic nervous system and the central nervous system through different types of neurons innervated by cholinergic inputs. Muscarinic acetylcholine receptors (mAChRs) are divided into five receptor subtypes (

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27

Culbert, Julie. "Exploitation of 1,2-dioxines for the synthesis of cyclopropyl natural products and novel tetrahydropyrans and tetrahydrofurans." Title page, table of contents and abstract only Title page, table of contents and abstract only, 2005. http://hdl.handle.net/2440/22204.

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"February 2005"<br>Bibliography: leaves 206-220.<br>ix, 222 leaves : ill. (some col.) ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>"The main focus of the work discussed in this thesis was to explore the utility of 1,2-dioxines for the synthesis of selected bioactive, cyclopropyl-containing, natural products and to investigate their potential for the construction of novel oxygen hetereocycles, namely tetrahydropyrans and tetrhydrofurans." --p. iii.<br>Thesis (Ph.D.)--University of Adelaide, Faculty of Sciences

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28

Winship, Paul Colin Michael. "The development and applications of the Lewis acid-mediated osmium-catalysed oxidative cyclisation." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:e4c42be0-bfea-451f-8af3-890b141423c9.

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The acid-mediated osmium-catalysed oxidative cyclisation of 1,2-diols bearing a pendent alkene has been shown to be a powerful method for the formation of cis-2,5-disubstituted tetrahydrofurans. This thesis describes the development of this methodology to broaden the scope of the general reaction, followed by applying the oxidative cyclisation to the synthesis of tetrahydrofuran containing natural products. Introduction: This section reports a range of ractions that osmium oxo-species will facilitate, namely the formation of carbon-oxygen and carbon-nitrogen bonds in a selective manner. In add

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29

Stefani, Stefano <1986&gt. "ALKOXYLLENE BASED SYNTHESIS OF ENANTIOPURE TETRAHYDROFURANOL DERIVATIVES; A NOVEL APPROACH TO THE SYNTHESIS OF JASPINE B." Master's Degree Thesis, Università Ca' Foscari Venezia, 2012. http://hdl.handle.net/10579/1658.

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30

Gadamsetty, Surendra Babu. "Application of sulfonimidoyl substituted allyltitanium (IV) complexes to the asymmetric synthesis of alkenyloxiranes, 2,3-dihydrofurans, tetrahydrofurans, unsaturated proline analogues and allylic alcohols." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=983701350.

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31

Stevens, Kiri. "Methodology for the synthesis of NP25302 and other bioactive natural products." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:ae18879e-d75e-4280-ba55-1ae08e64034f.

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Total synthesis of the pyrrolizidine alkaloid NP25302: (+)-NP25302 is an unusual vinylogous urea containing pyrrolizidine alkaloid shown to exhibit cell adhesion inhibition. It was envisaged that this natural product could be accessed by a novel 5-endo-dig cyclisation to construct the pyrrolizidine core, and a Curtius rearrangement to install the vinylogous urea motif. This methodology was first tested on a model system, furnishing nor-NP25302 from L-proline in 12 steps and 9% overall yield. The total synthesis of (±)-NP25302 was completed in 9 steps and 26% overall yield from ethyl 2-nitropro

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32

Goldmann, Michel. "Etude, par diffusion neutronique de l'insertion du tetrahydrofuranne dans le graphiture csc : :(24) et des transitions structurales dans les composes intercalaires cs(thf)::(x)c::(24)." Paris 7, 1988. http://www.theses.fr/1988PA077061.

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Des composes ternaires graphite-cesium-tetrahydrofuranne (thf) sont formes par reaction du thf gazeux avec csc::(24). L'insertion du thf a ete suivie in situ en temps reel. On observe que l'insertion se produit en deux etapes successives, conduisant dans un premier temps a un compose pauvre cs(thf)::(0,9)c::(24), puis au compose riche final cs(thf)::(1,7)c::(21). Le passage de la phase riche a la phase pauvre est reversible par cryopompage du thf qui est, dans tous les cas, couche parallelement aux feuillets graphitiques. Description des deux phases et de leurs transformations

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33

Hassan, Mohamed K. I. "Novel Elastomers, Characterization Techniques, and Improvements in the Mechanical Properties of Some Thermoplastic Biodegradable Polymers and Their Nanocomposites." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1086633832.

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34

Zvarec, Ondrej John. "New methods for the construction of novel heterocycles from 1,2-Dioxines." 2009. http://hdl.handle.net/2440/56029.

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Cyclic peroxides are abundant in Nature and synthetic manipulation of the peroxide linkage and alkene portion of 1,2-dioxines has established 1,2-dioxines as important compounds as both chemical building blocks and bioactive compounds. Much of the chemistry performed thus far utilizing 1,2-dioxines involves the initial rearrangement of 1,2-dioxines to γ-hydroxyenones allowing for the generation of structural motifs such as cyclopropanes, THF’s, THP’s, 1,4-diketones and natural sugars. Herein describes the synthesis of novel 1,2-dioxines with a variety of tethered functionalities and their tran

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35

Wilson, P. W., A. D. J. Haymet, K. A. Kozielski, P. G. Hartley, and N. C. Becker. "NUCLEATION OF CLATHRATES FROM SUPERCOOLED THF/WATER MIXTURES SHOWS THAT NO MEMORY EFFECT EXISTS." 2008. http://hdl.handle.net/2429/1169.

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The liquid-to-crystal nucleation temperature is measured for clathrate-forming mixtures of tetrahydrofuran and water using both an automatic lag time apparatus (ALTA) and a ball screening apparatus. Our results are conclusive evidence that no so-called “memory effect” exists. Either the solid form melts fully or it does not. If it does not, then no supercooling is possible on the next cooling down of that sample, and if it does then the second cooling run and freezing on a sample is just as likely to have a colder nucleation temperature as a hotter one.

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Bin, Dou, Ling Zhang, Xiang Wu, Fulong Ning, Yunzhong Tu, and Guosheng Jiang. "EFFECT OF SDS AND THF ON FORMATION OF METHANE-CONTAINING HYDRATES IN PURE WATER." 2008. http://hdl.handle.net/2429/1067.

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Gas hydrate formation generally involves gas dissolution, formation of nuclei and growth of new nucleus. On condition of synthesizing experiments without agitation, the formation of hydrate nuclei is comparatively difficult and needs an induction period which is considerably uncertain and random. Some additives such as surfactant sodium dodecyl sulfate (SDS) can increase the formation rate and reduce the induction time. A hydrate formation and mini drilling experimental system was used to carry on methane hydrate formation experiments with small quantity of SDS and SDS- tetrahydrofuran(THF) in

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37

Chen, Guan-Wen, and 陳冠文. "Catalyst studies for the synthesis of tetrahydrofuran." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/35186305517593188485.

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碩士<br>東海大學<br>化學工程與材料工程學系<br>100<br>Tetrahydrofuran(THF) is a valuable industrial chemical and is a good solvent with exceptional function. It is not only widely used on solvent for surface paint, anticorrosive paint, printing ink, and film paint, but also can be used to produce polytetramethylene-ether-glycol(PTMEG). PTMEG is used to produce polyurethane elastane fiber. This thesis has three sections. The first part uses a copper chromite catalyst for hydrogenation of succinate to produce BDO,GBL,THF andn-butanol. By changing feed flow rate, reaction temperature, reaction pressure, gas flow

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38

Njamela, Owen Lungile. "Chiral aldehydes in the synthesis of tetrahydrofurans." Thesis, 1994. http://hdl.handle.net/10413/11360.

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39

Wu, Jyun-Yi, and 吳軍毅. "Influence of the Additive Tetrahydrofuran on the Growth and Nucleation of Methane Hydrate via Molecular Dynamics Simulations." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/26840349147479490666.

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博士<br>國立臺灣大學<br>化學工程學研究所<br>103<br>Tetrahydrofuran (THF) is an effective promoter of methane hydrates. In this work, the stability limit (aqueous-hydrate coexisting condition) of THF/CH4+THF hydrates and the THF solubility in water were reproduced using molecular dynamics (MD) simulations. After that, the growth/nucleation mechanism of THF/CH4+THF hydrates were investigated and discussed the roles of CH4 and THF in these reaction. In the research of THF hydrate growth, the rate of growth of THF hydrates is found to exhibits a maximum value when the liquid phase THF concentration is about 0.3 t

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40

Chen, Chun-An, and 陳俊安. "Study of the Chemistry of 3-Carbonyl-2-methylene-2,3- dihydrofuran and 3,4-Dicarbonyl-2,5-dimethylene- tetrahydrofuran." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/57065183606087726116.

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碩士<br>國立中山大學<br>化學學系<br>82<br>Part(1): Synthesis of 3-carbonyl-2-methylene-2,3- dihydrofuran(60) by the flash vacuum pyrolysis method has been studied.Pyrolysis of 3-carbonylfuran-2- acetic anhydride(59) gave furano[b-4,5]-2-(2-methyl- 3-furyl)-6-oxo-pyran-2-ene(68), buten-3-yne(66) and 2- methyl-3-furoic acid(69). Compound of 60 has been detected by low temperature NMR. Part(2):The temperature and pressure dependence of the products formed from pyrolysis of 2,5- dimethylfuryl-3,4-diacyl ch

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Shieh, Jiunn-An, and 謝俊安. "The ionic cyclization of alkenylacylsilanes in the formantion oft etrahydropyran and tetrahydrofuran skeleton, and the attempt of t heir syntheticapplications." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/30199133950745438986.

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碩士<br>國立臺灣大學<br>化學學系<br>82<br>This dissertation describes our effects in the study of olefin in itiated cyclizations using acylsilane as nucleophile. Functional ization of the resulting cyclized products is also discussed.

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Culbert, Julie. "Exploitation of 1,2-dioxines for the synthesis of cyclopropyl natural products and novel tetrahydropyrans and tetrahydrofurans." Thesis, 2005. http://hdl.handle.net/2440/22204.

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"February 2005"<br>Bibliography: leaves 206-220.<br>ix, 222 leaves : ill. (some col.) ; 30 cm.<br>"The main focus of the work discussed in this thesis was to explore the utility of 1,2-dioxines for the synthesis of selected bioactive, cyclopropyl-containing, natural products and to investigate their potential for the construction of novel oxygen hetereocycles, namely tetrahydropyrans and tetrhydrofurans." --p. iii.<br>Thesis (Ph.D.)--University of Adelaide, Faculty of Sciences, School of Chemistry and Physics, Discipline of Chemistry, 2005

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Grauer, Andreas [Verfasser]. "Synthetic receptors for the differentiation of phosphorylated peptides and synthesis and use of tetrahydrofuran amino acids / vorgelegt von Andreas Grauer." 2009. http://epub.uni-regensburg.de/13399.

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Asiri, A. M., H. G. Heller, D. S. Hughes, et al. "A mechanophysical phase transition provides a dramatic example of colour polymorphism: the tribochromism of a substituted tri(methylene)tetrahydrofuran-2-one." 2014. http://hdl.handle.net/10454/10420.

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Yes<br>Derivatives of fulgides have been shown to have interesting photochromic properties. We have synthesised a number of such derivatives and have found, in some cases, that crystals can be made to change colour on crushing, a phenomenon we have termed "tribochromism". We have studied a number of derivatives by X-ray crystallography, to see if the colour is linked to molecular structure or crystal packing, or both, and our structural results have been supported by calculation of molecular and lattice energies. A number of 5-dicyanomethylene-4-diphenylmethylene-3-disubstitutedmethylene-tetra

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Ulivi, Lorenzo, Milva Celli, Alessandra Giannasi, Marco Zoppi, and A. J. Ramirez-Cuesta. "NEUTRON SCATTERING MEASUREMENTS OF THE HYDROGEN DYNAMICS IN CLATHRATES HYDRATES." 2008. http://hdl.handle.net/2429/1054.

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The hydrogen molecule dynamics in tetrahydrofuran-H2-H2O clathrate hydrate has been studied by high-resolution inelastic neutron scattering and Raman light scattering. Several intense bands in the neutron spectrum are observed that are due to H2 molecule excitations. These are rotational transitions, center-of-mass translational transitions (rattling) of either para- or ortho-H2, and combinations of rotations and center-of-mass transitions. The rattling of the H2 molecule is a paradigmatic example of the motion of a quantum particle in a non-harmonic three-dimensional potential well. Bot

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Huva, Emily I., Raimond V. Gordienko, John A. Ripmeester, Huang Zeng, and Virginia K. Walker. "THE SEARCH FOR “GREEN INHIBITORS:” PERTURBING HYDRATE GROWTH WITH BUGS." 2008. http://hdl.handle.net/2429/1105.

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Certain organisms, including some bugs (both insects and microbes) are able to survive low temperatures by the production of either ice nucleating proteins (INPs) or antifreeze proteins (AFPs). INPs direct crystal growth by inducing rapid ice formation whereas AFPs adsorb to ice embryos and decrease the temperature at which the ice grows. We have also shown that certain AFPs can inhibit the crystallization of clathrate hydrates and eliminate more rapid recrystallization or “memory effect”. Here we examine several bacterial species with iceassociating properties for their effect on tetrah

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Kumar, Neeraj. "Copper(I)-catalyzed chlorine atom transfer radical cyclization in the synthesis of 2,4-distributed -3-chlorofurans and tetrahydrofurano-fused bicycle B-lactams and sugars." Thesis, 2010. http://localhost:8080/iit/handle/2074/3701.

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HUANG, WEI-LUN, and 黃煒倫. "One-Pot Organocatalytic Enantioselective Michael-Acetalization-Reduction-Nef Reaction for the Synthesis of Tetrahydrofuro[2,3-b]benzofurans and the Formal Synthesis of Aflatoxin B2." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/68317796884763907519.

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碩士<br>國立中正大學<br>化學暨生物化學研究所<br>105<br>The sequential asymmetric organocatalytic Michael-acetalizationreduction- Nef reaction of (E)-2-(2-nitroethenyl)phenols and aldehydes through one-pot strategy for the enantioselective synthesis of tetrahydrofuro[2,3- b]benzofuran derivatives with good yields and high enantioselectivities was accomplished. This one-pot reaction method provides an efficient way for the synthesis of dihydro aflatoxin D2 (11), which constitutes a formal total synthesis of aflatoxin B2. In addition, the structure and absolute configurations of tetrahydrofuro[2,3-b]benzofuran der

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Gadamsetty, Surendra Babu [Verfasser]. "Application of sulfonimidoyl substituted allyltitanium (IV) complexes to the asymmetric synthesis of alkenyloxiranes, 2,3-dihydrofurans, tetrahydrofurans, unsaturated proline analogues and allylic alcohols / vorgelegt von Surendra Babu Gadamsetty." 2007. http://d-nb.info/983701350/34.

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Chapoy, Antonin, Ross Anderson, and Bahman Tohidi. "EFFECT OF CLATHRATE STRUCTURE AND PROMOTER ON THE PHASE BEHAVIOUR OF HYDROGEN CLATHRATES." 2008. http://hdl.handle.net/2429/1385.

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Hydrogen is currently considered by many as the “fuel of the future”. It is particularly favoured as a replacement for fossil fuels due to its clean-burning properties; the waste product of combustion being water. While hydrogen is relatively easy to produce, there is currently a lack of practical storage methods for molecular H2, and this is greatly hindering the use of hydrogen as a fuel. Gases are normally stored in vessels under only moderate pressures and in liquid form where possible, which yields the highest energy density. However, to store reasonable quantities of hydrogen in similar

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