Academic literature on the topic 'Hexadiene'

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Journal articles on the topic "Hexadiene"

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Werstiuk, N. H., K. B. Clark, and W. J. Leigh. "Conformational analysis and structure elucidation of 2,3-dimethyl- and 2,4-dimethyl-2,4-hexadienes by AM1 and He(I) ultraviolet photoelectron spectroscopy." Canadian Journal of Chemistry 68, no. 11 (1990): 2078–84. http://dx.doi.org/10.1139/v90-317.

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A study of (E)-2,3-dimethyl-2,4-hexadiene (E-3) and (Z)-2,3-dimethyl-2,4-hexadiene (Z-3) by the semiempirical computational method AM1 and He(I) ultraviolet photoelectron spectroscopy (UPS) has established that this combination of AM1/UPS will be generally useful for detailing conformational and electronic properties of alkyl-substituted 1,3-dienes. This method was used to elucidate the structures of the stereoisomeric 2,4-dimefhyl-2,4-hexadienes obtained from the photolysis of 1,3,3,4-tetramethylcyclobutene (2). Keywords: 2,3- and 2,4-dimethyl-2,4-hexadienes, conformational analysis, AM1, He(
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Probst, Michael F., Agnes M. Modro, and Tomasz A. Modro. "3-Phosphorylated 1,5-hexadienes as precursors for vinylic or 3-silanylvinylic phosphonates." Canadian Journal of Chemistry 75, no. 8 (1997): 1131–35. http://dx.doi.org/10.1139/v97-135.

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3-(Diethylphosphono) substituted 1,5-hexadienes are prepared by the α-regioselective allylation of allylic phosphonates. The products can be converted into vinylic phosphonates via two types of reactions. The first involves Cope rearrangement yielding the terminal vinylphosphonates of the 1,5-hexadiene system. The second involves γ-silanylation leading to the formation of the 1-silanyl-3-phosphono derivatives of the 2,5-hexadiene skeleton. Keywords: allylic and vinylic phosphonates, nucleophilicity of allylphosphonate carbanions, electrophilic silanylation, Cope rearrangement of alkenylphospho
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Linhart, Igor, Petr Trška, and Václav Dědek. "Reaction of 3-chlorononafluoro-1,5-hexadiene with diethylamine." Collection of Czechoslovak Chemical Communications 50, no. 8 (1985): 1727–36. http://dx.doi.org/10.1135/cccc19851727.

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Reaction of diethylamine with 3-chlorononafluoro-1,5-hexadieae (I) in molar ratio of 1.5 : 1 to 2 : 1 at -30 to -17 °C gives N,N-diethyl-1,1,2,3,4,4,5,6,6-nonafluoro-2,5-hexadienylamine (II) which is easily hydrolyzed to N,N-diethyl-2,3,4,4,5,6,6-heptafluoro-2,5-hexadienamide (III). The same reaction with the molar ratio 4 : 1 at 0-6 °C and at 40 °C produces a mixture of N,N,N',N'-tetraethyl-1,1,2,3,4,5,6,6-octafluoro-2,4-hexadiene-1,6-diamine (IV), N,N,N',N'-tetraethyl-1,1,2,3,4,4,5,6,6-nonafluoro-2-hexene-1,6-diamine (V), and N,N,N',N'-tetraethyl-1,2,3,3,4,5,6,6-octafluoro-1,4-hexadiene-1,6-
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Linhart, Igor, and Václav Dědek. "Reaction of 3-chlorononafluoro-1,5-hexadiene with sodium cyanide." Collection of Czechoslovak Chemical Communications 50, no. 8 (1985): 1737–44. http://dx.doi.org/10.1135/cccc19851737.

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3-Chlorononafluoro-1,5-hexadiene (I) is isomerized into 6-chlorononafluoro-1,4-hexadiene (II) by action of basic catalysts as sodium cyanide in anhydrous dimethylformamide, lithium chloride in dimethylformamide, and triethylamine in dioxane or dimethylformamide. Sodium cyanide also catalyzes addition of methanol to the chlorodiene I. The reaction course is more complex than in the alkoxide-catalyzed addition of primary alkohols to I. 6-Methoxynonafluoro-1,4-hexadiene (III), methyl perfluoro-3,6-heptadienoate (VII), and 3,6-dimethoxy-1,1,2,3,4,4,5,6,6-nonafluoro-1-hexene (VIII) have been isolat
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McManus, Kimberly A., and Donald R. Arnold. "Photochemical nucleophile–olefin combination, aromatic substitution (photo-NOCAS) reaction. Part 7: methanol, conjugated dienes, and 1,4-dicyanobenzene." Canadian Journal of Chemistry 72, no. 11 (1994): 2291–304. http://dx.doi.org/10.1139/v94-292.

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The scope of the photochemical nucleophile–olefin combination, aromatic substitution (photo-NOCAS) reaction has been extended to include conjugated dienes: 1,3-butadiene (9), 2-methyl-1,3-butadiene (10), 2,3-dimethyl-1,3-butadiene (11), and 2,5-dimethyl-2,4-hexadiene (12). Acetonitrile–methanol solutions of the dienes 9,10, and 11, and 1,4-dicyanobenzene (1), with and without codonor (biphenyl (5)), were irradiated with a medium-pressure mercury vapour lamp through Pyrex. Both 1,2- and 1,4-addition products were formed in approximately equal amounts (combined yields of photo-NOCAS products, 50
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Gabor, B., R. Goddard, S. Holle, et al. "The Reaction of Dienes with [Fe(Pri2P(CH2)nPPri2)] Species." Zeitschrift für Naturforschung B 50, no. 4 (1995): 503–14. http://dx.doi.org/10.1515/znb-1995-0407.

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The structure of the compounds formed upon reacting Fe(Pri2P(CH2)nPPri2)Cl2 (n = 1-3) and active-Mg with acyclic and cyclic 1,3-, 1,4- and 1,5-dienes depends upon the nature of the diene and upon the length of the methylene-chain bridging the two P-atoms of the bidentate ligand. For example, isoprene reacts to give either (η4-isoprene)2FePPri2C2H4PPri2 or (η4-isoprene)Fe(Pri2PC3H6PPri2) while the products of the reaction with 1,5-hexadiene are (η5-1-methylpentadienyl)Fe(Pri2PC2H4PPri2)H or (η2,η2-1,5-hexadiene)Fe(Pri2PC3H6PPri2). The crystal structures of the last two compounds have been estab
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Sharma, Sandeep, Michael R. Harper, and William H. Green. "Modeling of 1,3-hexadiene, 2,4-hexadiene and 1,4-hexadiene-doped methane flames: Flame modeling, benzene and styrene formation." Combustion and Flame 157, no. 7 (2010): 1331–45. http://dx.doi.org/10.1016/j.combustflame.2010.02.012.

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Arnold, Donald R., Kimberly A. McManus, and Xinyao Du. "Photochemical nucleophile–olefin combination, aromatic substitution (photo-NOCAS) reaction. Part 6: methanol, nonconjugated dienes, and 1,4-dicyanobenzene." Canadian Journal of Chemistry 72, no. 2 (1994): 415–29. http://dx.doi.org/10.1139/v94-063.

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Irradiation, through Pyrex, of an acetonitrile–methanol (3:1) solution of 1,4-dicyanobenzene (1) and 1,5-hexadiene (9) leads to formation of ortho and meta cyclic adducts (13–16) arising from the intermediate exciplex. There was no evidence for interaction between the two double bonds of this nonconjugated diene. The oxidation potential of 9 is high enough (> 3 V vs. sce) to preclude single electron transfer (SET); no photo-NOCAS products are formed. Similar irradiation of acetonitrile–methanol solutions of 1 and 2-methyl-1,5-hexadiene (10) does yield a photo-NOCAS product (17); reaction oc
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Bhuiyan, Md Masud Rana, Misbahu Ladan Mohammed, and Basudeb Saha. "Greener and Efficient Epoxidation of 1,5-Hexadiene with tert-Butyl Hydroperoxide (TBHP) as an Oxidising Reagent in the Presence of Polybenzimidazole Supported Mo(VI) Catalyst." Reactions 3, no. 4 (2022): 537–52. http://dx.doi.org/10.3390/reactions3040036.

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Alkene epoxidation with TBHP as an oxidising reagent using heterogeneous Mo(VI) catalyst is an environmentally friendly process since it eliminates acid waste and chlorinated by-products often associated with the conventional industrial method that uses stoichiometric peracid such as peracetic acid and m-chloroperbenzoic acid. Polybenzimidazole supported Mo(VI) complex, i.e., PBI.Mo has been successfully prepared, characterised and assessed for the epoxidation of 1,5-hexadiene in the presence of tert-butyl hydroperoxide (TBHP) as an oxidising reagent. A quadratic polynomial model has been deve
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Bunce, Richard A., and Brian J. Murray. "SYNTHESIS OF (±)-3-BROMOMETHYL-1,5-HEXADIENE AND (±)-3-BROMOMETHYL-3-METHYL-1,5-HEXADIENE." Organic Preparations and Procedures International 28, no. 1 (1996): 111–15. http://dx.doi.org/10.1080/00304949609355914.

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Dissertations / Theses on the topic "Hexadiene"

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Hattersley, Elise Noma. "A Study of 3-Tropylium-1,5-hexadiene." W&M ScholarWorks, 1998. https://scholarworks.wm.edu/etd/1539626168.

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Abo, Aly Mohamed. "Étude vibrationnelle de polyènes et polyenals conjugués modèles de chromophores de pigments photosensibles : influence de la méthylation et de la configuration." Paris 6, 1986. http://www.theses.fr/1986PA066380.

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Smit, Madri. "Polymerisation of 1,5-hexadienes." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52403.

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Thesis (MSc)--Stellenbosch University, 2001.<br>ENGLISH ABSTRACT: In this study, the feasibility of the non-conjugated 1,5-hexadiene as monomer in metallocene catalised cyclopolymerizations was considered. Homopolymers and copolymers with ethylene, propylene, 1-pentene, 1-hexene and 2-methyl-1,5- hexadiene as comonomers were synthesised in the presence of Cp2ZrCh and rac-Et(lnd)2Zrh. The microstructure (stereoregularity and cyclisation) and number-average molecular weight were determined from NMR analysis. Crystalline oligomers with functional (eg -OH) and vinylidene end groups were ob
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Baird, Robert Duncan. "Development and synthetic applications of the asymmetric anionic amino-Cope rearrangement." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/33967.

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The thermal and anionic amino-Cope rearrangement of suitably functionalised 3-amino-1,5-hexadienes could potentially constitute a powerful tool for the stereoselective synthesis of highly functionalised acyclic or cyclic systems. [Illustration omitted.] Incorporation of β-aminoalcohol auxiliaries into the diene enabled high diastereoselectivity to be obtained during the 1,2-addition of the allyl Grignard reagent to α,β-unsaturated imines. Asymmetric anionic amino-Cope rearrangement of the diastereoisomerically pure 3-amino-1,5-diene substrates furnished the target aldehyde in good yield and wi
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Nelson, Björn [Verfasser], Martin [Akademischer Betreuer] Hiersemann, and Carsten [Gutachter] Strohmann. "Palladium(II)-katalysierte Cycloisomerisierung von hochsubstituierten 1,5-Hexadienen / Björn Nelson. Betreuer: Martin Hiersemann. Gutachter: Carsten Strohmann." Dortmund : Universitätsbibliothek Dortmund, 2012. http://d-nb.info/1106256735/34.

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Zair, Touriya. "Synthèse stéréosélective et cyclisation catalysée par le palladium (0) des 1,5-hexadiène-3-ols/ Touriya Zair." Aix-Marseille 3, 1991. http://www.theses.fr/1991AIX30048.

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La stereochimie de l'addition des organo-magnesiens allyliques sr les enones a ete etudiee. Sur les enones acycliques, l'addition du chlorure de crotylmagnesium conduit a des 1,5-hexadiene-3-ols obtenus sous forme d'un melange erythro-threo. La proportion d'isomere threo croit avec celle de la configuration 5-cis de l'enone. Avec les dialkylidenecyclohexanones, l'addition axiale du chlorure deconfiguration erythro. Un modele compact a ete propose pour decrire l'etat de transition. Les 1,5-hexadiene-3-ols traites au reflyx de l'acide acetique par des quantites catalytiques de tetrakis triphenyl
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Deschamps, Jérôme. "Diacétylènes à fonctionnalités imidazole ou imidazolium : nouveaux polydiacétylènes rouges analogues du poly-1, 6-bis(N,N-diphénylamino)-2, 4-hexadiyne." Montpellier 2, 2007. http://www.theses.fr/2007MON20210.

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Magnol, Elisabeth. "Réactivité des hexadiène-1,5 ols-3 vis à vis des dérivés organiques du sélénium : cyclisation radicalaire de différentes structures d'éthers de (bromométhyl) diméthylsilyle." Lyon 1, 1986. http://www.theses.fr/1986LYO10525.

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Reactivite de differents hexadiene-1,5ols-3 vis-a-vis du phtalimidure de phenylselenium (reactif de nicolaou) en presence d'une quantite catalytique d'acide p-toluenesulfonique. Le facteur favorisant la transposition oxy-cope est la presence d'un substituant alkyle sur le carbone 5. Dans une seconde partie, on etudie la cyclisation radicalaire des ethers (bromomethyl) dimethyl silyles d'hexene-5yne-1ols-3, qui conduit a la formation de synthons cyclopenteniques ou cyclohexeniques substitues. La regiochimie de la cyclisation est fonction de la nature des substituants
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Magnol, Elisabeth. "Réactivité des hexadiène-1,5 OLS-3 viv-à-vis des dérivés organiques du sélénium cyclisation radicalaire de différentes structures d'éthers de (bromométhyl) diméthylsilyle." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37599335q.

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Sales, Emerson Andrade. "Catalisadores de paladio suportados na hidrogenação seletiva de hexadienos em fase liquida : efeito da adição de estanho e prata." [s.n.], 1996. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266517.

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Orientador: Mario de Jesus Mendes, François Bozan-Verduraz<br>Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica e Universite de Paris 7-Denis Diderot<br>Made available in DSpace on 2018-07-21T14:09:39Z (GMT). No. of bitstreams: 1 Sales_EmersonAndrade_D.pdf: 5808076 bytes, checksum: 6e66c0411f938065b69b982158037597 (MD5) Previous issue date: 1996<br>Resumo: Foram preparados por impregnação difusional dez catalisadores à base de paládio, paládio-estanho e paládio-prata, suportados em alumina e óxido de titânio, para uso na hidrogenação seletiva de hexa-I,3-d
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Books on the topic "Hexadiene"

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Leifker, Gregor. Umsetzungen von Phenylacetylen und von 1,5-Hexadiin [Hexadiin] mit Bromwasserstoff bzw. [beziehungsweise] Chlorwasserstoff. [s.n.], 1985.

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Brieden, Walter. Synthese von "Heteroradialenen" mit 3,4-Dilithio-2,5-dimethyl-2,4-hexadien. 1989.

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Book chapters on the topic "Hexadiene"

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Vogt, J. "719 C9H10FeO3 Tricarbonyl[(2,3,4,5-η)-(2E,4E)-2,4-hexadiene]iron." In Asymmetric Top Molecules. Part 3. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14145-4_141.

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Yesinowski, James P., Hellmut Eckert, Eckert Sandman, and Christopher S. Velazquez. "Solid-State Reaction of Poly(1,6-di-N-carbazolyl-2,4-hexadiyne) with Electrophiles." In ACS Symposium Series. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0337.ch018.

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Sandman, Daniel J., B. S. Elman, G. P. Hamill, J. Hefter, and Christopher S. Velazquez. "Interaction of Halogens with Single Crystals of Poly(1,6-di-N-carbazolyl-2,4-hexadiyne)." In ACS Symposium Series. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0337.ch009.

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Jones, M. T., J. Roble, and Daniel J. Sandman. "Electron Paramagnetism in Poly(1,6-di-N-carbazolyl-2,4-hexadiyne) and Its Bromine Derivatives." In ACS Symposium Series. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0337.ch019.

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Blum, T., and H. Bässler. "Time-Resolved Photoconduction in the Polymer of the Bis(p-toluenesulfonate) of 2,4-Hexadiyne-1,6-diol." In ACS Symposium Series. American Chemical Society, 1987. http://dx.doi.org/10.1021/bk-1987-0337.ch017.

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Dudley, M., J. N. Sherwood, D. J. Ando, and D. Bloor. "X-Ray Topographic Studies of the Solid-State Polymerization of PTS [2,4-Hexadiyne Diol Bis(p-Toluene Sulphonate)]." In Polydiacetylenes. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-017-2713-6_6.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of α-and β-2,4-hexadiyne-1,6-diyl bis(2,2,5,5-tetramethyl-1-oxyl-3-pyrroline-3-carboxylate) radical." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-23675-4_4719.

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MAERCKER, ADALBERT, RALF DUJARDIN, and FRANZ BRAUERS. "3,4-DILITHIO-2,5-DIMETHYL-2,4-HEXADIENE." In Organometallic Syntheses. Elsevier, 1988. http://dx.doi.org/10.1016/b978-0-444-42956-8.50102-x.

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Ian, Fleming. "Electrocyclic reactions." In Pericyclic Reactions. Oxford University Press, 2015. http://dx.doi.org/10.1093/hesc/9780199680900.003.0004.

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This chapter deals with electrocyclic reactions, which are characterized by the creation of a ring from an open-chain conjugated system. It illustrates the σ-bond-forming across the ends of the conjugated system and the opening of a σ-bond with the creation of a longer conjugated system. It also reviews the first few members of the series of neutral polyenes: the equilibria between butadiene and cyclobutene, between hexadiene and cyclohexadiene, and between octatetraene and cyclooctatriene. The chapter discusses the strained ring of the cyclobutene that makes a reaction take place in the ring-
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"A New Economical and Environmentally Friendly Synthesis of 2,5-Dimethyl-2,4-Hexadiene." In Catalysis of Organic Reactions. CRC Press, 2006. http://dx.doi.org/10.1201/9781420007794-49.

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Conference papers on the topic "Hexadiene"

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Bockris, John O'm, and Bo Yang. "Adsorption and Corrosion Inhibition of Acetylenic Alcohols and Some Related Compounds on Iron in Acid Solutions: a Spectroscopic and Electrochemical Study." In CORROSION 1989. NACE International, 1989. https://doi.org/10.5006/c1989-89626.

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Abstract The adsorption process of 1-octyn-3-ol, 1-propyn-3-ol, 1-butyn-3-ol, 1-hexyn-3-ol, 1-phenyl-2-propyn-1-ol, 3-methyl-1-penten-4-yn-3-ol, 1,5-hexadien-3-ol and 3-hexanol on iron electrode in acid solutions (H2SO4 and HC1) have been examined by time-resolved in-situ automatic ellipsometry. The time, concentration and potential dependencies of the adsorption, the subsequent structure transition and polymer growth of the adsorbed layers formed by these compounds on iron were determined. In-situ multiple wavelength ellipsometry in the visible region, XPS and ex-situ FTIR reflection-absorpti
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Gobeli, D. A., and M. A. El-Sayed. "Studies Of Rapid Dynamics Of 2,4-Hexadiyne By The Pump-Pump Picosecond Laser Mass Spectrometric Technique." In 1985 Los Angeles Technical Symposium, edited by M. J. Soileau. SPIE, 1985. http://dx.doi.org/10.1117/12.946543.

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Liu, M., C. K. Hwangbo, L. Friedrich, and G. I. Stegeman. "Preparation and Characterization of Single Crystal PTS Waveguide Film." In Organic Thin Films for Photonic Applications. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/otfa.1997.wc.2.

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Spatial optical solitons have been receiving an increasing amount of attention due to their potential application for all-optical interconnects. Bright solitons arise as a compensation of natural diffraction of an optical beam by a self-focus nonlinearity. They have been observed in semiconductor, glass and CS2 waveguides at powers of 500W, 400KW and 500KW [1,2,3]. Recently, conjugated polymer poly[2,4-hexadiyn-1, 6-diol-bis(p-toluenesulfonate)] (PTS) was reported to have large positive nonlinearity (2.2×10-12W/cm2) and a very small two-photo absorption at around 1.6μm [4]. The large off-reson
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Yoshino, F., S. Polyakov, G. I. Stegeman, and M. Liu. "Nonlinear refraction and absorption from 1300 to 2200 in single crystal polymer poly[bis(p-toluene sulfonate)] of 2, 4-hexadiyne-1, 6-diol (PTS)." In Quantum Electronics and Laser Science (QELS). Postconference Digest. IEEE, 2003. http://dx.doi.org/10.1109/qels.2003.238152.

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