Relevant bibliographies by topics / Benzyl ethers

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Benzyl ethers'

Author: Grafiati
Published: 5 June 2025
Last updated: 24 June 2025

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Journal articles on the topic "Benzyl ethers"

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Vaughn, Steven F., and Gayland F. Spencer. "Synthesis and Herbicidal Activity of Modified Monoterpenes Structurally Similar to Cinmethylin." Weed Science 44, no. 1 (1996): 7–11. http://dx.doi.org/10.1017/s0043174500093474.

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The preemergence herbicide cinmethylin is a benzyl ether derivative of the monoterpene 1,4-cineole. Other oxygenated monoterpenes (carvone, citronellol, fenchone, geraniol, and pulegone) were previously found to inhibit the germination and growth of several weed species while exhibiting low phytotoxicity to soybean. Benzyl ether derivatives of these oxygenated monoterpenes were synthesized and examined for preemergence and postemergence activity towards corn, soybean, wheat, and velvetleaf. Benzyl pulegyl ether exhibited the most preemergence activity when applied directly to the soil, completely inhibiting wheat and velvetleaf emergence at 1.0 kg ha−1while reducing soybean emergence 80%. Several of the benzyl ethers were more inhibitory to velvetleaf radicle elongation relative to cinmethylin but less inhibitory to corn and wheat radicle elongation in petri dish bioassays. Several of the benzyl ethers exhibited limited postemergence activity when applied at 1.0 kg ha−1to seedlings of the test species 10 d after emergence. The benzyl ether derivatives demonstrated altered selectivity and sensitivity as compared to the parent compounds and cinmethylin.
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Schaefer, Ted, Kerry J. Cox, Cherrie L. Morier, Christian Beaulieu, Rudy Sebastian, and Glenn H. Penner. "Motion about the bond in benzyl OR (R = CH3, CH2CH3, CH(CH3)2, C(CH3)3). Solvent and substituent dependence." Canadian Journal of Chemistry 68, no. 9 (1990): 1553–58. http://dx.doi.org/10.1139/v90-240.

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The 1H nuclear magnetic resonance spectral parameters of benzyl alkyl ethers (CH3, CH2CH3, CH(CH3)2, and C(CH3)3) in CS2 and acetone-d6 solutions are obtained, as are those for the 3,5-dichloro derivatives (CH3, CH2CH3, and CH(CH3)3) in acetone-d6 solution. The long-range coupling constants between the methylene and para ring protons show that the apparent twofold barrier to rotation about the [Formula: see text] bond is solvent and ring-substituent dependent. The apparent twofold barrier ranges from a vanishing value for benzyl methyl ether in CS2 solution to as much as 4.6 kJ/mol for 3,5-dichlorobenzyl isopropyl ether in acetone-d6 solution. The data imply that, for the free molecules, the conformation of highest energy has the CH2—O bond in a plane perpendicular to that of the phenyl group. Molecular orbital computations with a minimal Gaussian basis set agree that, for benzyl methyl ether in the exo form (the methyl group pointing away from the phenyl moiety), this conformation is the least stable. However, geometry optimization procedures imply that the CH2—O bond is twisted out of the ring plane by 30.3° in the most stable geometry of the exo form. Such procedures for the (distorted) endo form locate another stable conformer, in which the CH2—O bond is twisted out of the phenyl plane by 45°, only 0.25 kJ/mol less stable than the most stable conformer of the exo form. These results, together with some computations for the tert-butyl derivative, are discussed in terms of the theoretical potentials for rotation about the [Formula: see text] bond. The approximate potential surface is rather flat compared to kT at ambient temperatures for the free molecules, consistent with its sensitivity to the medium and to ring substituents. Keywords: 1H NMR, benzyl alkyl ethers; long-range coupling constants in benzyl alkyl ethers; conformations, benzyl alkyl ethers; internal motion, benzyl alkyl ethers; MO computations on benzyl methyl ether.
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Palanychamy, Prakas, Steven Lim, Yeow Hong Yap, and Loong Kong Leong. "Critical Review of the Various Reaction Mechanisms for Glycerol Etherification." Catalysts 12, no. 11 (2022): 1487. http://dx.doi.org/10.3390/catal12111487.

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This review provides in-depth coverage of numerous mechanisms available for the etherification process of glycerol, including alcohol solvent, olefin solvent and solvent-free routes along with products that are formed at various stages of the reaction. Mono tert-butyl glycerol ether (MTBG), di tert-butyl glycerol ether (DTBG), and tri tert-butyl glycerol ether (TTBG) are the three general ether compounds obtained through tert-butyl alcohol (TBA) etherification. Glycerol etherification with n-butanol results in the formation of glycerol ether products that are linked to the substituted butyl groups. These products include two mono-butyl glycerol ethers, two di-butyl glycerol ethers and a tri-butyl glycerol ether. Two mono-benzyl glycerol ether isomers, two di-benzyl glycerol ether isomers and tri-benzyl glycerol ether are the most reported results when benzyl alcohol is used as a solvent in the etherification reaction. The etherification of glycerol with 1-butene involves a series of equilibrium reactions to produce mono-ethers, di-ethers, and tri-ethers, whereas the etherification of glycerol with isobutene is carried out via tert-butylation of glycerol, yielding similar glycerol ether products when TBA is used as a solvent. As the by-product may be easily removed, the solvent-free glycerol etherification approach may have several advantages over the other conventional methods. Therefore, further studies on base-catalyzed glycerol etherification that employs a solvent-free reaction route may reveal a method for improving the conversion, selectivity, and yield of reaction products. This review study is crucial in improving knowledge of numerous mechanisms and how they relate to the effectiveness of the product’s catalytic process.
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Sireesha, Reddymasu, Reddymasu Sreenivasulu, Choragudi Chandrasekhar, and Mannam Subba Rao. "A Facile, Efficient and Selective Deprotection of P - Methoxy Benzyl Ethers Using Zinc (II) Trifluoromethanesulfonate." Letters in Organic Chemistry 16, no. 12 (2019): 955–58. http://dx.doi.org/10.2174/1570178616666190222151934.

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: Deprotection is significant and conducted over mild reaction conditions, in order to restrict any more side reactions with sensitive functional groups as well as racemization or epimerization of stereo center because the protective groups are often cleaved at last stage in the synthesis. P - Methoxy benzyl (PMB) ether appears unique due to its easy introduction and removal than the other benzyl ether protecting groups. A facile, efficient and highly selective cleavage of P - methoxy benzyl ethers was reported by using 20 mole% Zinc (II) Trifluoromethanesulfonate at room temperature in acetonitrile solvent over 15-120 min. time period. To study the generality of this methodology, several PMB ethers were prepared from a variety of substrates having different protecting groups and subjected to deprotection of PMB ethers using Zn(OTf)2 in acetonitrile. In this methodology, zinc triflate cleaves only PMB ethers without affecting acid sensitivity, base sensitivity and also chiral epoxide groups.
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Guo, Richard, Romelo Gibe, and James R. Green. "Mono- and disubstitutions of (hepta-2,5-diyne-1,7-diol) bis(dicobalt) derivatives — Selectivity in Nicholas reactions." Canadian Journal of Chemistry 82, no. 2 (2004): 366–74. http://dx.doi.org/10.1139/v03-209.

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Bis(hexacarbonyldicobalt) complexes of benzyl ether – methyl ether or benzyl ether – acetate derivatives of hepta-2,5-diyne-1,7-diols undergo selective Lewis-acid-mediated Nicholas reactions with enol silanes, silyl ketene acetals, and allylstannanes, preferentially replacing the methyl ether or acetate function. Hydride nucleophiles are similarly incorporated selectively using a benzyl ether – alcohol derivative. Subsequent Nicholas reaction at the benzyloxy-bearing site may be accomplished with an identical or a different nucleophile, affording skipped 1,4-diyne-Co4(CO)12 complexes. In instances of lower selectivity for monosubstitution reactions with benzyl ethers, reverting to the use of a menthyl ether – methyl ether complex gives much improved selectivity for methyl ether substitution.Key words: cobalt alkyne complexes, Nicholas reaction, Lewis acids, 1,4-diynes.
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Kohne, Bernd, Peer Marquardt, Klaus Praefcke, Panicos Psaras, Werner Stephan, and Kürsad Turgay. "Monothioscyllitol-Ether als Discogen und Doppeldiscogen." CHIMIA 40, no. 10 (1986): 360. https://doi.org/10.2533/chimia.1986.360.

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The ethers (3a, 4, and 5) of 1-deoxy-1-mercapto-scyllo-inositol (monothioscyllitol) and one ether (3b) of the hitherto unknown 1-deoxy-1-hydroseleno-scyllo-inositol (monoselenoscyllitol), a selenium analogue of the naturally occuring scyllo-inositol, have been prepared by nucleophilic substitution reaction from 2-O-mesyl-1,3,4,5,6-penta-O-benzyl-myo-inositol (2). Two of these derivatives S-hexyl-penta-O-benzyl-monothio-scyllitol (4) and the twin-compound S,S'-decamethylene-bis(penta-O-benzyl-monothio-scyllitol) (5) are the first scyllo-inositol ethers exhibiting mesophases (monotropic). Furthermore, the twin ether 5 is the first example of a novel type of geminal liquid crystals which contain two saturated alicyclic discogenic units bridged by a ten-carbon spacer between two sulfur atoms. This double-discogen 5 seems to form a novel type of mesophase.
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Hu, Jinbo, Cuiwen Kuang, Chuanfa Ni, and Yucheng Gu. "Photoredox-Catalyzed Ring-Opening Addition Reaction between Benzyl Bromides and Cyclic Ethers." Synthesis 54, no. 05 (2021): 1272–86. http://dx.doi.org/10.1055/a-1671-6856.

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AbstractA novel nucleophilic reaction between cyclic ethers and benzyl bromides is achieved under photoredox catalysis. The reaction proceeds through a single-electron-transfer (SET) pathway rather than a common SN2 mechanism. By two steps of reduction and oxidation, a benzyl bromide heterolyzes to give a carbocation and bromide ion under mild conditions, and then a cyclic ether captures both the carbo­cation and bromide ion to afford the addition product.
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McGeary, Ross, Jed Burns, and Elizabeth Krenske. "Claisen Rearrangements of Benzyl Vinyl Ethers and Heterobenzyl Vinyl Ethers." Synthesis 50, no. 09 (2018): 1750–72. http://dx.doi.org/10.1055/s-0036-1589529.

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The Claisen rearrangement of benzylic substrates (benzyl vinyl­ ethers) has received considerably less attention than its well-known aliphatic and normal aromatic variants. Here, we review the rearrangement of both benzylic and heterobenzylic substrates, with examples of the reaction’s use in the synthesis of natural products and drug-like molecules.1 Introduction2 Early Attempts at the Benzyl-Claisen Rearrangement3 Successful Benzylic Examples4 Heterobenzylic Examples5 Conclusion
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Jin, Qingwu, and Robert M. Coates. "Synthesis of Methoxynor Polyisoprenoid Alcohols by Alkylation of (3-Methoxyallyl)lithium Reagents." Collection of Czechoslovak Chemical Communications 67, no. 1 (2002): 55–74. http://dx.doi.org/10.1135/cccc20020055.

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A series of six methyl enol ether analogs 8-13 of geraniol, (E,E)-farnesol, and (E,E,E)-geranylgeraniol was synthesized from a group of three allylic methyl ethers and three allylic chlorides. Lithiation of the 1-methyl-, or 1-alkenylvinyl ethers with sec-butyllithium at -78 °C followed by alkylations of the resulting (Z)-(3-methoxyallyl)lithium reagents afforded the six possible Z-configured(trans) methoxynor polyprenyl benzyl ethers bearing the methoxy substituent at the internal and terminal double bonds with high Z/E ratios (5 : 1-31 : 1) and 47-80% yields. Reductive cleavage of the benzyl groups with lithium in liquid ammonia gave the corresponding methoxynor polyprenols. 11-Methoxy-18-nor and 7-methoxy-19-nor geranylgeraniols (13 and 12) were converted to the corresponding diphosphates, 7 and 32, by the Poulter displacement method. The stability of the enol ether in 7 in aqueous solution at pH 8 was verified by NMR analyses. The diphosphates of the methoxynor polyprenols may prove useful as substrate analogs for terpene synthases to capture transient intermediates in cyclization reactions catalyzed by these enzymes.
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Ren, Yun-Lai, Jianji Wang, Xinzhe Tian, Fangping Ren, Xinqiang Cheng, and Shuang Zhao. "Direct Conversion of Benzyl Ethers into Aryl Nitriles." Synlett 29, no. 18 (2018): 2444–48. http://dx.doi.org/10.1055/s-0037-1611062.

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A direct method was developed for the conversion of benzyl ethers into aryl nitriles by using NH4OAc as the nitrogen source and ­oxygen as the terminal oxidant with catalysis by TEMPO/HNO3; the method is valuable for both the synthesis of aromatic nitriles and for the deprotection of ether-protected hydroxy groups to form nitrile groups in multistep organic syntheses.
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Dissertations / Theses on the topic "Benzyl ethers"

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Fruteau, de Laclos Anne-Marie F. (Anne-Marie François). "Cleavage of benzyl aryl ethers by chlorine." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70291.

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In order to extend application of the gel-degradation mechanism of delignification, model compounds of the general structure (3,4-dimethoxyphenyl)-CH(OR)R$ sp prime$ were treated at room temperature with increasing charges of molecular Cl$ sb2$ in glacial HOAc.<br>Catalytic amounts of Cl$ sb2$ cleaved benzyl aryl ether bonds (OR=2-methoxy-4-methylphenoxy) before any ring chlorination occurred. Yields of cleavage decreased in the order: R$ sp prime$=H; R$ sp prime$=$-$CH$ sb2$-2-methoxyphenoxy; R$ sp prime$=$-$CH(CH$ sb2$OH)-2-methoxyphenoxy. These results support the concept that the delignification of wood pulp by chlorine results from benzyl aryl ether cleavage. The conditions of the reaction, as well as control reactions with hydrochloric acid, suggest that the cleavage is due to conventional acid hydrolysis induced by chlorine. The experimental evidence does not rule out another possible mechanism in which the cleavage is initiated by molecular chlorine.<br>Benzyl ether links were generally stable in models of the benzyl alkyl type, whose primary reactions were ring chlorination. A large excess of chlorine caused side-chain displacement, hitherto considered the primary reaction in the solubilization of lignin.
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Greenhalgh, Richard P. "Diasteroselective Wittig rearrangements." Thesis, University of Kent, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359407.

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Sandrin, Franco. "Lewis acid catalyzed reactions of 1-benzyl-2, 5-bis (trimethylsiloxy) pyrrole." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66047.

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Hughes, Samantha Jayne. "A computational and synthetic study of poly(benzyl phenyl ether) dendrimers." Master's thesis, University of Cape Town, 1998. http://hdl.handle.net/11427/17221.

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Includes bibliographies.<br>Organic and organochromium poly(benzyl phenyl ether) dendrimers have been investigated by synthetic · and computational methods. The first generation organic benzyl alcohol and bromide wedges have been prepared, and a first generation organic dendrimer was synthesised. The preparation of novel organochromium dendrimers has been investigated. Several chromium arene complexes were prepared by different routes, and the halogenation methodology was thoroughly explored with various reagents. The target compound, a chromium complexed first generation dendritic wedge, was not accessible by any of the methods investigated. The novel compound (dibenzyl ether)bis[tricarbonylchromium(O)] has been prepared by two routes and the crystal structure of this complex was determined. Several other chromium arene complexes were synthesised, and the crystal structure of one of these, (benzyl methyl ether)tricarbonylchromium(O), was determined. The structure and properties of the organic and organochromium dendrimers have been investigated by molecular mechanics and molecular dynamics techniques. The existing CHARMm polymer force field was extended to include parameters for the tricarbonylchromium moiety. The two crystal structures solved as part of the synthetic effort, were used in this regard. The accuracy of the new parameters was assessed by simulation of the crystal structure of ( dibenzyl ether)bis[tricarbonylchromium(O)]. The important ether linkage torsion angle parameter, which plays a significant role in the topology of the dendrimer, was singled out for refinement. The torsion angle was parameterised with the model compound benzyl phenyl ether, by fitting the CHARMm results for rotation about the dihedral, to ab initio torsional data. Molecular dynamics simulations have been performed on generations one through five of the organic and organochromium dendrimers. The radius of gyration and RMS variation were investigated as a function of generation for both dendrimer series. The radius of gyration was found to increase exponentially with generation, whereas the relationship of RMS variation to generation was not as well defined. Density distributions were calculated for all five generations of the organic and organometallic dendrimers. In addition, the distribution of the monomers from each generation within the dendrimer was analysed. In the later generation dendrimers, the monomers belonging to the earlier generations are extended, while the terminal groups are mobile and found in all regions of the dendrimer. The solvent accessible surface was calculated for the organochromium dendrimers. It was concluded from these results that although the terminal groups are mobile, the majority of these monomers remain on the periphery of the dendrimer, or in solvent accessible areas.
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Deora, Nipa. "Computational Studies of Protonated Cyclic Ethers and Benzylic Organolithium Compounds." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/27800.

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Protonated epoxides feature prominently in organic chemistry as reactive intermediates. Gas-phase calculations studying the structure and ring-opening energetics of protonated ethylene oxide, propylene oxide and 2-methyl-1,2-epoxypropane were performed at the B3LYP and MP2 levels (both with the 6-311++G** basis set). Structural analyses were performed for 10 protonated epoxides using B3LYP, MP2, and CCSD/6-311++G** calculations. Protonated 2-methyl-1,2-epoxypropane was the most problematic species studied, where relative to CCSD, B3LYP consistently overestimates the C2-O bond length. The difficulty for DFT methods in modeling the protonated isobutylene oxide is due to the weakness of this C2-O bond. Protonated epoxides featuring more symmetrical charge distribution and cyclic homologues featuring less ring strain are treated with greater accuracy by B3LYP. Ion-pair separation (IPS) of THF-solvated fluorenyl, diphenylmethyl, and trityl lithium was studied computationally. Minimum-energy equilibrium geometries of explicit mono, bis and tris-solvated contact ion pairs (CIPs) and tetrakis-sovlated solvent separated ion pair (SSIPs) were modeled at B3LYP/6-31G*. Associative transition structures linking the tris-solvated CIPs and tetrakis-solvated SIPs were also located. In vacuum, B3LYP/6-31G* ΠHIPS values are 6-8 kcal/mol less exothermic than the experimentally-determined values in THF solution. Incorporation of secondary solvation in the form of Onsager and PCM single-point calculations showed an increase in exothermicity of IPS. Application of a continuum solvation model (Onsager) during optimization at the B3LYP/6-31G* level of theory produced significant changes in the Cα-Li contact distances in the SSIPs. An increase in of ion pair separation exothermicity was observed upon using both PCM and Onsager solvation models, highlighting the importance of both explicit and implicit solvation in modeling of ion pair separation.<br>Ph. D.
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Bronk, John M. "Synthesis and characterization of poly (butyl vinyl ether) homopolymers and copolymers utilizing the aluminum hydrogen sulfate catalyst system." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-08182009-040347/.

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Yigitsoy, Basak. "Benzyl Functionalized Benzotriazole Containing Conjugated Polymers: Effect Of Substituent Position On Electrochromic Properties And Synthesis Of Crown Ether Functionalized Electrochromic Polymers." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613309/index.pdf.

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A new class of &pi<br>-conjugated monomers was synthesized with combination of electron donating and electron-withdrawing heterocyclics to understand the effects of structural differences on electrochemical and optoelectronic properties of the resulting polymers. Electron deficient benzotriazole, substititued with benzyl from two available sites, coupled with stannylated electron donating groups, ethylenedioxythiophene (EDOT) and thiophene (Th), to yield four different monomers<br>1-benzyl-4,7-di(thiophen-2-yl))-2H-benzo[d][1,2,3] triazole (BBTA), 2-benzyl-4,7-di(thiophen-2-yl))-2H-benzo[d][1,2,3] triazole (BBTS), 1-benzyl-4,7-bis(2,3-dihydrothieno[3,4-b]dioxin-5-yl)-2H-benzo [d][1,2,3]triazole (BBTEA), 2-benzyl-4,7-bis(2,3-dihydrothieno[3,4-b]dioxin-5-yl)-2H-benzo [d][1,2,3]triazole (BBTES). Furthermore, EDOT and thiophene terminated napthalene-2,3-crown ether containing monomers, 14,19-di(thiophen-2-yl)-naphtho[2,3-b][1,4,7,10,13] pentaoxacyclo pentadecane (TNCT), 14,19-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-naphtho[2,3-b][1,4,7,10,13]pentaoxacyclopenta decane (ENCE), were synthesized to observe the effect crown ether moiety on the final electrochemical and optoelectronic properties of resultant polymers. Cyclic voltammetry, UV-Vis-NIR spectroscopy and colorimetry techniques were employed to examine electrochemical and optoelectronic properties of all monomers and polymers. Experimental results showed that alteration of substituent, substitution position and donor groups&rsquo<br>strength lead to obtain polymers with different redox behaviors, optical band gaps and different number of achievable colored states.
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Adnani, Driss. "Réactivité en cycloaddition [4+2] et [3+2] du tétrafluoroborate de 2-benzoyl-1, 2-dihyfroisoquinoléine - 1 carbonitrile (composé de Reissert dérivé de l'isoquinoléine) avec quelques énones et ethers d'enol. : Étude de la régio- et de la stéréochimie des cycloadduits." Besançon, 1995. http://www.theses.fr/1995BESA2022.

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Les réactions étudiées ont mis en évidence la réactivité des cétones Alpha, Beta éthyléniques vis-à-vis du tétrafluoroborate de 2-benzoyl-1, 2-dihydroisoquinoléines-1 -carbonitrile : on observe généralement une réaction de cycloaddition [4+2] qui conduit à des dérivés substitués de pyrrole. Dans le cas de deux de ces cétones, nous avons pu mettre en évidence la réaction concurrente de cycloaddition dipolaire 1,3 qui conduit à un dérivé de la pyrrolo(2,1 -a)isoquiléine. Ceci indique que l'on a doncà faire à deux réactions concurrentes même dans le cas des alcènes alors que McEwen indiquait que tous les alcènes donnaient lieu à une réaction de cycloaddition de type [4+2]. Lorsque l'énone mise en oeuvre comporte deux faces diastéréospécifiques comme c'est le cas avec les arylidéneindanones et -tétralones que nous avons utilisées, on observe une approche diastéréosélective des réactants. Notre étude a mis en évidence le rôle décisif des facteurs conformationnels pour rendre compte de la diastéréochimie observée. Les spirocomposés obtenus avec ces dernières énones peuvent s'ouvrir en milieu acide pour donner des dérivés tétrasubstitués de pyrrole. Enfin, les quelques réactions effectuées avec des éthers d'énol ont montré que pour les plus simples d'entre eux, c'est la réaction de cycloaddition dipolaire-1,3 qui intervient : ces ethers d'énol se comportent comme des alcynes masqués vis à vis du tétrafluoroborate de 2-benzoyl-1,2 dihydroisoquinoléine-1-carbonitrite au sens de McEwen. Nous avons proposé un mécanisme qui rend compte de la réactivité de ces alcènes particuliers.
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Souabi, Salah. "Etude de l'adsorption de tensioactifs cationiques sur charbon actif influence de coadsorbats /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376186543.

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Hennequin, Laurent. "Nouvelle méthode de préparation de composés dicarbonylés-1,5 : application à la synthèse de substances naturelles." Rouen, 1986. http://www.theses.fr/1986ROUES026.

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On met au point une méthode générale de synthèse de composés delta-dicarbonylés et delta-dicarbonylés α -halogénés par action respectivement d'un éther d'énol silyle ou d'un éther d'énol silyle β-halogéné sur des carbocations fonctionnels. En milieu basique, les composés delta-dicarbonylés sont transformés en cyclohexénones, tandis que leurs anologues halogénés conduisent, selon la structure du composé de départ, à des cyclopropanes disubstitués trans ou à des spiranes hétérocycliques. Ces méthodes ont été appliquées à la synthèse d'alpha -cypérones. On a également préparé des synthons de bis-annélation et obtenu ainsi la homo-D deshydrotestostérone
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Books on the topic "Benzyl ethers"

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Samanta, Samiparna. Meat, Mercy, Morality. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190129132.001.0001.

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This book uses the lens of humanitarian debates to understand the nature of British colonialism in India. It demonstrates that with emergence of new notions of public health in late 19th-century Bengal, contests over appropriate measures for controlling animals became part of wider debates surrounding environmental ethics, diet, sanitation, and a politics of race/class that reconfigured boundaries between the colonizer and the colonized. Centered around three major stories – animals as diseased, eaten, and overworked – it explores how the colonial project of animal protection mirrored an irony in that it exposed the disjunction between the claims of a benevolent colonial state and a powerful, not-too-benign reality where the state constantly sought to discipline its subjects – both human and nonhuman. It refreshes our understanding of environment, colonial science and British imperialism by arguing that colonial humanitarianism was not only an idiom of rule, but was also translated into Bengali dietetics, anxieties, vegetarianism and vigilantism which can be seen in India even today.
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d'Hubert, Thibaut. Indo-Afghan Historical Imaginaries and the Romance Genre. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190860332.003.0007.

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In Chapter 6, I take a step back using the conclusions that I reached about the background and nature of Ālāol’s poetics. I use those observations as a lens to look at cultural trends that spread eastward and southward from Hindustan during the Indo-Afghan and early Mughal periods. The Afghan rule in North India has been seen as a major moment in the making of a local Islamicate cultural ethos and development of multilingual literary cultures in South Asia. I observe the legacy in Bengal and the Deccan of the multilingual literary culture that was fashioned at the courts of the Lodis and of other regional polities during the fifteenth and sixteenth centuries. I come back on what constituted the multilingual literary culture of those courts and focus on the historical imaginary of Indo-Afghan authors, the nature of courtly sociability, and the development of romance as a cross-linguistic genre.
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Book chapters on the topic "Benzyl ethers"

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Lide, David R. "Benzyl ethyl ether." In Handbook of Organic Solvents. CRC Press, 2024. http://dx.doi.org/10.1201/9781003575191-29.

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Wohlfarth, Ch. "High pressure fluid phase equilibrium data of poly(ethylene-co-benzyl methacrylate) in ethene and benzyl methacrylate." In Polymer Solutions. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32057-6_218.

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Wohlfarth, Ch. "Viscosity of the mixture (1) propylene glycol monomethyl ether acetate; (2) benzyl methacrylate." In Supplement to IV/18. Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75486-2_1621.

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Wohlfarth, Ch. "High pressure fluid phase equilibrium data of poly(ethylene-co-benzyl methacrylate) in ethene." In Polymer Solutions. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-88057-8_647.

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Inokuchi, Yoshiya. "Gas-Phase Spectroscopy of Metal Ion–Benzo-Crown Ether Complexes." In Physical Chemistry of Cold Gas-Phase Functional Molecules and Clusters. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-9371-6_5.

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Göçmen, Ayten, and Çakıl Erk. "Cation Binding of Benzo Crown Ethers in acetonitrile using Fluorescence Spectroscopy, Part II." In Molecular Recognition and Inclusion. Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-011-5288-4_53.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of cobalt(II) chloro complex with benzo-10-aza-crown ether macrocyclic ligand." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 5. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-65098-1_201.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of manganese(III) chloro complex with benzo-10-aza-crown ether macrocyclic ligand." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 5. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/978-3-662-65098-1_89.

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Sen, Hia. "'Being Good at Studies': The Bhadralok Culture and the Ethos of Education in Bengal." In 'Time-Out' in the Land of Apu. Springer Fachmedien Wiesbaden, 2013. http://dx.doi.org/10.1007/978-3-658-02223-5_5.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of salt consisting of ammonium-benzo-crown ether supramolecular cation with bis-(maleonitriledithiolato)cuprate." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 4. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62474-6_110.

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Conference papers on the topic "Benzyl ethers"

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Vovdenko, Anna, Mikhail Vovdenko, Kamila Koledina, Ravil Khusnutdinov, and Alfiya Bayguzina. "Mathematical modeling of the catalytic reaction of benzyl and butyl ethers." In 2020 International Conference on Information Technology and Nanotechnology (ITNT). IEEE, 2020. http://dx.doi.org/10.1109/itnt49337.2020.9253359.

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Merino, P., T. Tejero, S. Anoro, and F. Merchan. "1,3-Dipolar Cycloadditions of N-Benzyl Furfuryl Nitrones to Vinyl Ethers and a,b-Unsatureted Esters." In The 3rd International Electronic Conference on Synthetic Organic Chemistry. MDPI, 1999. http://dx.doi.org/10.3390/ecsoc-3-01718.

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Chen, Kuizhi, Ming Yu, Hong Zhang, et al. "Polyion complex micelles incorporating poly (aryl benzyl ether) dendritic phthalocyanine: effective photosensitizers for enhanced photodynamic therapy." In Photonics Asia, edited by Qingming Luo, Ying Gu, and Xingde D. Li. SPIE, 2012. http://dx.doi.org/10.1117/12.2001194.

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Takesue, Yoshiko, Mei M. Mui, Takahiko Hachiya, and Jean-Marie A. Parel. "Comparative photodynamic effect of rose bengal, Erythrosin B, and dihematoporphyrin ethers on lens epithelial cells." In OE/LASE'93: Optics, Electro-Optics, & Laser Applications in Science& Engineering, edited by Jean-Marie A. Parel and Qiushi Ren. SPIE, 1993. http://dx.doi.org/10.1117/12.147545.

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Naimi-Jamal, M. Reza, Mohammad Dekamin, and Mehdi Javaheri. "Oxidative Deprotection of Benzylic Silyl Ethers to Their Corresponding Carbonyl Compounds Using Nitrogen Dioxide Gas." In The 13th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2009. http://dx.doi.org/10.3390/ecsoc-13-00188.

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Sinha, Priyadarsini, Milan Mukherjeeb, Souvik Roy, and Abhik Mukherjee. "MODELING OF OPINION FORMATION UNDER INFLUENCE OF SOCIAL MEDIA FOR ANALYZING HISTORICAL EVENTS WITH BENGAL PARTITION AS CASE STUDY." In ETHICS AND INFORMATION TECHNOLOGY. VOLKSON PRESS, 2020. http://dx.doi.org/10.26480/etit.02.2020.138.141.

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Ahuja, Suresh K. "Visco-Elastic Modulus and Intercalation of Polymer Chains in Epoxy Nano-Composites." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-42503.

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Abstract:
Polymer nano-composites (PNC) are polymers which are reinforced with less than 5% by volume of nano-sized particles with high aspect ratios (L/h &gt; 300). Compared to conventional composites, where the reinforcement is on the order of microns, the nano-composites are reinforced on the order of a few nanometers with advantages in processing and toughness. Nano-composites of epoxy clay have been studied where epoxy is mixed at high shear rates with clay. In our method of making nano-composites, an epoxy, Diglycidyl ether of bisphenol (DGEBA) A was mixed under high shear with organically modified mica type silicate (OMTS) either of benzyl dimethyl stearyl ammonium (BDSMA) or of methyl bishydroxyethyl stearyl ammonium chloride ion exchange with sodium montmorillonite. Nano-composites of epoxy cured with hexahydrophthalic anhydride (70%) with polyether polyol (25%) were made also under high shear both at 90C and 120C. Heat of reaction and transition temperature of epoxy nano-composite was compared with cured epoxy nano-composite. Analysis by X-Ray Diffraction was used to determine peaks, spacing and interfacial region. Dynamic visco-elastic measurements were used to distinguish between the nano-composites from two organically modified mica type silicates. Effect of increase in concentration and temperature on visco-elastic modulus of nano-composites was analyzed in terms of intercalation of polymer chains.
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Wang, Xiongwei, Kuizhi Chen, Zheng Huang, and Yiru Peng. "Block copolymers encapsulated poly (aryl benzyl ether) dendrimer silicon (IV) phthalocyanine for in vivo and in vitro photodynamic efficacy of choroidal neovascularization." In SPIE BiOS, edited by David H. Kessel and Tayyaba Hasan. SPIE, 2015. http://dx.doi.org/10.1117/12.2081532.

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