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Journal articles on the topic 'Methylhexane'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Crowder, G. A. "Conformational Analysis of 2-Methylhexane and 3-Methylhexane." Spectroscopy Letters 19, no. 6 (1986): 639–51. http://dx.doi.org/10.1080/00387018608069269.

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2

Krokidas, Anastasios, Katerina Mikedi, Athanasios G. Gakis, Spyridon Methenitis, Tzortzis Nomikos, and Magdalini Krokida. "Effect of Spirulina Nigrita® on Exercise-Induced Oxidative Stress in Humans: A Breath Analysis Study." Applied Sciences 14, no. 24 (2024): 11501. https://doi.org/10.3390/app142411501.

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In the current work, the non-invasive approach of breath analysis is implemented for the first time in an eccentric exercise protocol that investigated the effect of spirulina supplementation on exercise-induced oxidative stress. We assessed whether volatile alkanes in exhaled breath can serve as alternative biomarkers of oxidative stress. A randomized, double-blinded, placebo-controlled, crossover supplementation study was carried out enrolling 14 participants. The volunteers consumed 42 mg·kg−1 body weight of either Spirulina Nigrita® or maltodextrin, as a placebo, daily for 15 days. Afterwa

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3

Wang, Zhandong, Samah Y. Mohamed, Lidong Zhang, et al. "New insights into the low-temperature oxidation of 2-methylhexane." Proceedings of the Combustion Institute 36, no. 1 (2017): 373–82. http://dx.doi.org/10.1016/j.proci.2016.06.085.

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4

Yaluris, G., R. J. Madon, and J. A. Dumesic. "2-Methylhexane Cracking on Y Zeolites: Catalytic Cycles and Reaction Selectivity." Journal of Catalysis 165, no. 2 (1997): 205–20. http://dx.doi.org/10.1006/jcat.1997.1471.

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5

C E B. "Clinical and Experimental Neurotoxicity of 2-t-bulylazo-2-hydroxy-5-methylhexane." Journal of Occupational and Environmental Medicine 27, no. 11 (1985): 850. http://dx.doi.org/10.1097/00043764-198511000-00024.

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6

Bamwenda, G. R., Y. X. Zhao, and B. W. Wojciechowski. "The Influence of Reaction Temperature on the Cracking Mechanism of 2-Methylhexane." Journal of Catalysis 148, no. 2 (1994): 595–606. http://dx.doi.org/10.1006/jcat.1994.1246.

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7

Spencer, Peter S., Christan M. Beaubernard, Monica C. Bischoff-Fenton, and Thomas L. Kurt. "Clinical and experimental neurotoxicity of 2-t-butylazo-2-hydroxy-5-methylhexane." Annals of Neurology 17, no. 1 (1985): 28–32. http://dx.doi.org/10.1002/ana.410170108.

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8

Paschek, D., and R. Krishna. "Monte Carlo simulations of self- and transport-diffusivities of 2-methylhexane in silicalite." Physical Chemistry Chemical Physics 2, no. 10 (2000): 2389–94. http://dx.doi.org/10.1039/b000718h.

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9

Aberuagba, Folorunsho, and Alfred A. Susu. "COMPARATIVE REACTION STUDY OF METHYLCYCLOHEXANE AND 3-METHYLHEXANE IN H2AND N2ON Pt/Al2O3CATALYST." Petroleum Science and Technology 20, no. 7-8 (2002): 741–49. http://dx.doi.org/10.1081/lft-120003708.

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10

Alvarez, F., F. Ramôa Ribeiro, and M. Guisnet. "Hydroisomerization and hydrocracking of 2-methylhexane on PtUSHY catalysis. Effect of platinum content." Reaction Kinetics & Catalysis Letters 41, no. 2 (1990): 309–14. http://dx.doi.org/10.1007/bf02097886.

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11

Yaluris, G., R. J. Madon, and J. A. Dumesic. "Catalytic Ramifications of Steam Deactivation of Y Zeolites: An Analysis Using 2-Methylhexane Cracking." Journal of Catalysis 186, no. 1 (1999): 134–46. http://dx.doi.org/10.1006/jcat.1999.2537.

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12

BAMWENDA, G. R., Y. X. ZHAO, and B. W. WOJCIECHOWSKI. "ChemInform Abstract: The Influence of Reaction Temperature on the Cracking Mechanism of 2- Methylhexane." ChemInform 25, no. 52 (2010): no. http://dx.doi.org/10.1002/chin.199452051.

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13

Hudzik, Jason M., and Joseph W. Bozzelli. "Calculated Entropies for n-Heptane, 2-Methylhexane, 2,3-Dimethylpentane, and Radicals from the Loss of H Atoms." Advances in Physical Chemistry 2013 (June 18, 2013): 1–7. http://dx.doi.org/10.1155/2013/673065.

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Entropy data are reported using different calculation methods for internal rotors on n-heptane, 2-methylhexane, and 2,3-dimethylpentane and on the different radical sites of each species corresponding to the loss of a hydrogen atom for temperatures between 298 and 1500 K. Structures, moments of inertia, vibration frequencies, and internal rotor potentials are calculated at the B3LYP/6-31G(d,p) level of theory. Comparisons with experimental literature data suggest limitations inuse of the rigid-rotor harmonic-oscillator (HO) approximation and advantages to the use of internal rotation contribut

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14

Agarwal, Nitin, Marco A. Sanchez-Castillo, Randy D. Cortright, Rostam J. Madon, and James A. Dumesic. "Catalytic Cracking of Isobutane and 2-Methylhexane over USY Zeolite: Identification of Kinetically Significant Reaction Steps." Industrial & Engineering Chemistry Research 41, no. 16 (2002): 4016–27. http://dx.doi.org/10.1021/ie020041z.

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15

C E B. "Neurologic Dysfunction from Exposure to 3-t-butylazo- 2-hydroxy-5-methylhexane (BHMH): A New Occupational Neuropathy." Journal of Occupational and Environmental Medicine 27, no. 11 (1985): 850. http://dx.doi.org/10.1097/00043764-198511000-00022.

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16

Horan, J. M., T. L. Kurt, P. J. Landrigan, J. M. Melius, and M. Singal. "Neurologic dysfunction from exposure to 2-t-butylazo-2-hydroxy-5-methylhexane (BHMH): a new occupational neuropathy." American Journal of Public Health 75, no. 5 (1985): 513–17. http://dx.doi.org/10.2105/ajph.75.5.513.

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17

Lahtela, Maija, Tapani A. Pakkanen, and Richard L. Rowley. "Nonequilibrium Molecular Dynamics Simulations of 3-Methylhexane: The Effect of Inter- and Intramolecular Potential Models on Simulated Viscosity." Journal of Physical Chemistry A 101, no. 19 (1997): 3449–53. http://dx.doi.org/10.1021/jp9639197.

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18

Mohamed, Samah Y., Liming Cai, Fethi Khaled, et al. "Modeling Ignition of a Heptane Isomer: Improved Thermodynamics, Reaction Pathways, Kinetics, and Rate Rule Optimizations for 2-Methylhexane." Journal of Physical Chemistry A 120, no. 14 (2016): 2201–17. http://dx.doi.org/10.1021/acs.jpca.6b00907.

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19

Lahtela, Maija, Tapani A. Pakkanen, and Richard L. Rowley. "Nonequilibrium Molecular Dynamics Simulations of 3-Methylhexane: The Effect of Inter- and Intramolecular Potential Models on Simulated Viscosity." Journal of Physical Chemistry A 101, no. 27 (1997): 5026. http://dx.doi.org/10.1021/jp971476g.

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20

Zhang, QingSheng, SiJia Chen, Lin Zhang, Qun Cui, ZongJian Liu, and HaiYan Wang. "Dynamic adsorption of n-heptane/methylhexane/2,2,4-trimethylpentane and refining of high purity n-heptane on UiO-66." Journal of Porous Materials 23, no. 1 (2015): 165–73. http://dx.doi.org/10.1007/s10934-015-0067-x.

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21

Ran, L., C. S. Zhao, W. Y. Xu, et al. "VOC reactivity and its effect on ozone production during the HaChi summer campaign." Atmospheric Chemistry and Physics Discussions 11, no. 3 (2011): 8595–623. http://dx.doi.org/10.5194/acpd-11-8595-2011.

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Abstract. Measurements of ozone and its precursors conducted within the HaChi (Haze in China) project in summer 2009 were analyzed to characterize volatile organic compounds (VOCs) and their effects on ozone photochemical production at a suburban site in the North China Plain. Ozone episodes, during which running 8-h average ozone concentrations exceeding 80 ppbv lasted for more than 4 h, occurred on about two thirds of the observational days during the 5-week field campaign. This suggests continuous ozone exposure risks in this region during the summer. The average concentrations of nitrogen

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22

Fisher, Carolyn L., Pamela D. Lane, Marion Russell, Randy Maddalena, and Todd W. Lane. "Low Molecular Weight Volatile Organic Compounds Indicate Grazing by the Marine Rotifer Brachionus plicatilis on the Microalgae Microchloropsis salina." Metabolites 10, no. 9 (2020): 361. http://dx.doi.org/10.3390/metabo10090361.

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Microalgae produce specific chemicals indicative of stress and/or death. The aim of this study was to perform non-destructive monitoring of algal culture systems, in the presence and absence of grazers, to identify potential biomarkers of incipient pond crashes. Here, we report ten volatile organic compounds (VOCs) that are robustly generated by the marine alga, Microchloropsis salina, in the presence and/or absence of the marine grazer, Brachionus plicatilis. We cultured M. salina with and without B. plicatilis and collected in situ volatile headspace samples using thermal desorption tubes ov

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23

SIEPMANN, J. ILJA, MARCUS MARTIN, CHRISTOPHER MUNDY, and MICHAEL KLEIN. "Intermolecular potentials for branched alkanes and the vapour-liquid phase equilibria of n-heptane, 2-methylhexane, and 3-ethylpentane." Molecular Physics 90, no. 5 (1997): 687–93. http://dx.doi.org/10.1080/00268979709482654.

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24

ILJA SIEPMANN, By J., and MARCUS G. MARTIN. "Intermolecular potentials for branched alkanes and the vapour-liquid phase equilibria of n-heptane, 2-methylhexane, and 3-ethylpentane." Molecular Physics 90, no. 5 (1997): 687–94. http://dx.doi.org/10.1080/002689797172048.

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25

Ran, L., C. S. Zhao, W. Y. Xu, et al. "VOC reactivity and its effect on ozone production during the HaChi summer campaign." Atmospheric Chemistry and Physics 11, no. 10 (2011): 4657–67. http://dx.doi.org/10.5194/acp-11-4657-2011.

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Abstract. Measurements of ozone and its precursors conducted within the HaChi (Haze in China) project in summer 2009 were analyzed to characterize volatile organic compounds (VOCs) and their effects on ozone photochemical production at a suburban site in the North China Plain (NCP). Ozone episodes, during which running 8-h average ozone concentrations exceeding 80 ppbv lasted for more than 4 h, occurred on about two thirds of the observational days during the 5-week field campaign. This suggests continuous ozone exposure risks in this region in the summer. Average concentrations of nitrogen ox

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26

Ichikawa, Takahisa, and Nobuaki Ota. "ESR and electronic spectra of alkane radical cations formed in .gamma.-irradiated 3-methylpentane and 3-methylhexane glasses containing alkane solutes." Journal of Physical Chemistry 91, no. 12 (1987): 3244–48. http://dx.doi.org/10.1021/j100296a028.

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27

Frey, Wolfgang, Feng Li, and Volker Jäger. "Crystal structure of (2S,3S,4R,5R)-3-(tert-butoxycarbonylamino-1,2-O-isopropylidene- 4-O-methoxy-methyl-5-methylhexane-1,2,4,6-tetrol, C17H33NO7." Zeitschrift für Kristallographie - New Crystal Structures 222, no. 3 (2007): 353–54. http://dx.doi.org/10.1524/ncrs.2007.0149.

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28

Mohamad Shahimin, Mohd Faidz, Julia M. Foght, and Tariq Siddique. "Methanogenic Biodegradation of iso-Alkanes by Indigenous Microbes from Two Different Oil Sands Tailings Ponds." Microorganisms 9, no. 8 (2021): 1569. http://dx.doi.org/10.3390/microorganisms9081569.

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iso-Alkanes, a major fraction of the solvents used in bitumen extraction from oil sand ores, are slow to biodegrade in anaerobic tailings ponds. We investigated methanogenic biodegradation of iso-alkane mixtures comprising either three (2-methylbutane, 2-methylpentane, 3-methylpentane) or five (2-methylbutane, 2-methylpentane, 2-methylhexane, 2-methylheptane, 2-methyloctane) iso-alkanes representing paraffinic and naphtha solvents, respectively. Mature fine tailings (MFT) collected from two tailings ponds, having different residual solvents (paraffinic solvent in Canadian Natural Upgrading Lim

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29

Li, Yangbing, Weiqiang Hu, Xin Chen, Litao Ma, Cheng Liu, and Duo Wang. "Study on Geochemical Characteristics of tight sandstone gas accumulation in Linxing area." E3S Web of Conferences 206 (2020): 01017. http://dx.doi.org/10.1051/e3sconf/202020601017.

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Based on the comprehensive analysis of the characteristics of tight sandstone gas composition, carbon isotope, light hydrocarbons and source rocks in Linxing area of Ordos Basin, the reservoir-forming model of tight sandstone gas in this area is discussed. The study shows that methane is the main component of tight sandstone gas, with low contents of heavy hydrocarbons and non-hydrocarbons, mainly belonging to dry gas in the Upper Paleozoic in Linxing area. The values of δ13C1, δ13C2 and δ13C3 of natural gas are in the ranges of -45.6‰ ~ -32.9‰, -28.9‰ ~ -22.3‰ and -26.2‰~ -19.1‰, respectively

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30

Krisyuk, Vladislav V., Samara Urkasym Kyzy, Tatyana V. Rybalova, Ilya V. Korolkov, Mariya A. Grebenkina та Alexander N. Lavrov. "Structure and Properties of Heterometallics Based on Lanthanides and Transition Metals with Methoxy-β-Diketonates". Molecules 27, № 23 (2022): 8400. http://dx.doi.org/10.3390/molecules27238400.

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The possibility of obtaining volatile polynuclear heterometallic complexes containing lanthanides and transition metals bound by methoxy-β-diketonates was studied. New compounds were prepared by cocrystallization of monometallic complexes from organic solvents. Ln(tmhd)3 were used as initial monometallic complexes (Ln = La, Pr, Sm, Gd, Tb, Dy, Lu; tmhd = 2,2,6,6-tetramethylheptane-3,5-dionate) in combination with TML2 in various ratios (TM = Cu, Co, Ni, Mn; L: L1 = 1,1,1-trifluoro-5,5-dimethoxypentane-2,4-dionate, L2 = 1,1,1-trifluoro-5,5-dimethoxy-hexane-2,4-dionate, L3 = 1,1,1-trifluoro-5-me

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31

Dhanaraj, Felix Irudhyaraj, Jagadheesh Kumar Kalimuthu, Pavan Santhosh Balamurugan, Punitha Subramani, David R. Katerere, and Manikandan Gurusamy. "Investigating the Phytochemical Profile and Antioxidant Activity of Different Solvent Extracts of Sesamum prostratum Retz." Plants 14, no. 4 (2025): 519. https://doi.org/10.3390/plants14040519.

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Numerous bioactive chemicals with a range of advantageous effects on human metabolism can be found in medicinal plants. The knowledge of these phytochemicals is essential for the identification of potential medicines. In the present study, Sesamum prostratum was selected for GC-MS profiling and antioxidant studies. Plant extracts were prepared with ethanol, ethyl acetate, and acetone by using the continuous hot Soxhlet extraction method. The chemical compositions were analyzed by GC/MS. In addition, antioxidant activity was measured using ABTS, DPPH, and hydrogen peroxide assay. The GC-MS anal

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32

Lee, Hyo Eun, Jeong Hun Kim, Daram Seo, and Seok J. Yoon. "Prioritization of Volatile Organic Compound Reduction in the Tire Manufacturing Industry through Speciation of Volatile Organic Compounds Emitted at the Fenceline." Atmosphere 15, no. 2 (2024): 223. http://dx.doi.org/10.3390/atmos15020223.

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Volatile organic compounds (VOCs), with their ubiquitous presence across numerous global industries, pose multifaceted challenges, influencing air pollution and health outcomes. In response, countries such as the United States and Canada have implemented fenceline monitoring systems, enabling real-time tracking of organic solvents, including benzene. Initially, this focus was predominantly placed on the petroleum refining industry, but it has gradually been broadening. This investigation seeks to identify and analyze the specific VOCs produced in the tire manufacturing sector by utilizing both

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33

B. A., Feyisara, and Olufunmiso O. O. "Comparative Antimicrobial Activity and Bioactive Constituents of Oils from Rhizomes of Zingiber Officinale Roscoe Obtained by Different Extraction Methods." African Journal of Biology and Medical Research 7, no. 2 (2024): 162–86. http://dx.doi.org/10.52589/ajbmr-tlkdp3jc.

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Ginger, known for its rich array of bioactive compounds, holds significant therapeutic potential due to its diverse medicinal properties. This study investigated the antimicrobial activity and bioactive principles present in ginger rhizome oils obtained using three different extraction methods viz: liquid-liquid extraction, cold maceration, and soxhlet extraction. The oils’ bioactive principles were identified by Gas Chromatography Mass Spectrometry (GC-MS) while their antimicrobial activity was determined by agar well diffusion technique. The GC-MS analysis revealed the presence of thirty com

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34

Ohta, Nobuaki, Masaru Shiotani та Takahisa Ichikawa. "Electron paramagnetic resonance and INDO-MO studies of 2-methylbutane, 3-methylpentane and 3-methylhexane cations produced in several halocarbon matrices γ-irradiated at 77 K". J. Chem. Soc., Faraday Trans. 87, № 24 (1991): 3869–74. http://dx.doi.org/10.1039/ft9918703869.

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35

OHTA, N., M. SHIOTANI та T. ICHIKAWA. "ChemInform Abstract: ESR and INDO-MO Studies of 2-Methylbutane, 3-Methylpentane and 3- Methylhexane Cations Produced in Several Halocarbon Matrices γ- Irradiated at 77 K." ChemInform 23, № 15 (2010): no. http://dx.doi.org/10.1002/chin.199215040.

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36

Mineeva, I. V. "(3S,5R)-6-(benzyloxy)-3-methylhexane-1,5-diol in the synthesis of insect pheromones with methyl-branched carbon chain and of amphidinolide L C 7 –C 14 fragment." Russian Journal of Organic Chemistry 50, no. 2 (2014): 168–74. http://dx.doi.org/10.1134/s1070428014020043.

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37

Babkin, V. A., D. S. Andreev, A. V. Ignatov та ін. "CALCULATION OF THE ELECTRONIC STRUCTURE OF CATIONIC POLYMERIZATION MONOMERS BRANCHED IN THE β-POSITION TO THE DOUBLE BOND BY THE DFT METHOD". IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, № 12(247) (24 грудня 2020): 35–38. http://dx.doi.org/10.35211/1990-5297-2020-12-247-35-38.

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In this paper, a quantum chemical calculation of some monomers: 4-methylpentene-1, 4-methylhexene-1, 4,4-dimethylpentene-1 by the density functional DFT method is performed. The optimized geometric and electronic structure of these compounds is obtained. It was found that the studied monomers belong to the class of very weak CH acids (pKa = 28).

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38

Garamanov, A. M. "CATALYTIC HYDROSILYLATION OF 5-METHYLHEXENE-5-YN-2-OL-1." Azerbaijan Chemical Journal, no. 2 (June 20, 2019): 62–66. http://dx.doi.org/10.32737/0005-2531-2019-2-62-66.

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39

Garamanov, A. M., N. Kh Gusiev, M. Sh Gurbanov, R. A. Akhmedova, and S. N. Allakhverdieva. "SYNTHESIS AND PROPERTIES OF 2-SUBSTITUTED ORGANOSILICON 1,4-DIENE EPOXIDES." Azerbaijan Chemical Journal, no. 1 (March 15, 2022): 55–59. http://dx.doi.org/10.32737/0005-2531-2022-1-55-59.

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The addition reaction of triorganosilanes to 1-(5-methylhexene-5-yn-2-yloxy)-2,3-epoxypropane in the presence of H2PtCl6.6H2O catalyst proceeds via a triple bond, but with an advantageous yield (75-85%) of the β-isomer (relative to the oxygen atom). The addition of dimethylamine to the epoxy ring leads to secondary amino alcohols, and the corresponding episulfide is obtained by the reaction of epoxysilane with thiocarbamide. Epoxy-1,4-dienes can be used as modifiers for phenol-formaldehyde resin

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40

Buono, Annamaria, Giovanni Talarico, Claudio de Rosa, Annette Thierry, and Bernard Lotz. "Crystal Polymorphism and Crystal Transformations of Isotactic Poly(5-methylhexene-1)." Macromolecules 46, no. 12 (2013): 4872–81. http://dx.doi.org/10.1021/ma4005296.

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41

Touafek, Ouassila, Zahia Kabouche, Joël Boustie, and Christian Bruneau. "A New Long-Chain Unsaturated Ester and Other Constituents of Hypericum tomentosum." Natural Product Communications 7, no. 1 (2012): 1934578X1200700. http://dx.doi.org/10.1177/1934578x1200700123.

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Three long-chain unsaturated esters (1-3), a fatty acid (4), a fatty ester (5), phytone (6) and a phloroglucinol (hyperfoliatin) (7) were isolated from the light petroleum extract of the endemic species Hypericum tomentosum L. (Clusiaceae). Compound 2, 8,10,13-trimethyltetradecanoic acid (2E)-3-methylhexadec-2-enyl ester, which we named tomentosate, is reported for the first time. The structures of the identified compounds were established on the basis of physical and spectroscopic analysis, and by comparison with literature data.

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42

Martins, Marcos A. P., Sergio Brondani, Victor L. Leidens та ін. "Synthesis and structure of new trichloromethyl-β-diketones 5-Trichloromethylisoxazole and 5-isoxazolecarboxylic acid derivatives". Canadian Journal of Chemistry 83, № 8 (2005): 1171–77. http://dx.doi.org/10.1139/v05-130.

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An improved method for the synthesis of a new series of trichloromethyl-β-diketones including 1,1,1-trichloropentan-2,4-dione (2a), 1,1,1-trichloro-3-methylhexan-2,4-dione (2b), 4,4,4-trichloro-1-phenylbutan-1,3-dione (2c), 4,4,4-trichloro-2-methyl-1-phenylbutan-1,3-dione (2d), 2-trichloroacetylcyclohexanone (2e), 4-tert-butylcyclohexanone (2f), 4-tert-butylcycloheptanone (2g), and 4-tert-butylcyclooctanone (2h) is reported. A multinuclear NMR study showed that β-dicarbonyl compounds 2b and 2d2h are predominantly in the keto form and 2a and 2c are in the enol form. The trichloromethyl-β-diket

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43

Nubbemeyer, Udo, Jonas Donges, Sandra Hofmann, et al. "Synthesis of Optically Active N-(4-Hydroxynon-2-enyl)pyrrolidines: Key Building Blocks in the Total Synthesis of Streptomyces coelicolor Butanolide 5 (SCB-5) and Virginiae Butanolide A (VB-A)." Synthesis 53, no. 15 (2021): 2632–42. http://dx.doi.org/10.1055/s-0037-1610770.

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AbstractStarting from 5-methylhexanal and (S)-configured N-propargylprolinol ethers, coupling delivered N-(4-hydroxynon-2-ynyl)prolinol derivatives as mixtures of C4 diastereomers. Resolution of the epimers succeeded after introduction of an (R)-mandelic ester derivative and subsequent HPLC separation. Alternatively, suitable oxidation gave the corresponding alkynyl ketone. Midland reagent controlled diastereoselective reduction afforded a defined configured propargyl alcohol with high selectivity. LiAlH4 reduction and Mosher analyses of the allyl alcohols enabled structure elucidation. The su

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44

Reyes, Elba D., and Néstor M. Carballeira. "A Short Synthesis of (Z)-15-Methylhexadec-11-enoic Acid." Synthesis 1996, no. 06 (1996): 693–94. http://dx.doi.org/10.1055/s-1996-4297.

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45

Rogers, D. W., and Kosol Dejroongruang. "Enthalpies of hydrogenation of the n-heptenes and the methylhexenes." Journal of Chemical Thermodynamics 20, no. 6 (1988): 675–80. http://dx.doi.org/10.1016/0021-9614(88)90018-3.

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46

Ojima, Juro, Hiroshi Kakumi, Kazuto Kitatani, Kazuyo Wada, Emiko Ejiri, and Tetsuya Nakada. "Tricyclic system containing large rings. The synthesis of fully-conjugated [12](1,3)[12](4,6)cyclophanpolyenepolyynes and related compounds." Canadian Journal of Chemistry 63, no. 11 (1985): 2885–91. http://dx.doi.org/10.1139/v85-479.

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For the purpose of preparing the ring-expanded analogue of anthracene, 1,2,4,5-tetrakis[(1E,3Z)-4-methylhexa-1,3-dien-5-ynyl]benzene, 8, and 1,2,4,5-tetrakis[(Z)-2(2-ethnylphenyl)ethenyl]benzene, 16, were oxidatively coupled; however, both of them afforded m-bridged derivatives, i.e., 1,3:4,6-bis[(1E,3Z,9Z,11E)-4,9-dimethyldodeca-1,3,9,11-tetraene-5,7-diyne-1,12-diyl]benzene, 3, and 1,3:4,6-bis[(1E,11E)-3,4:9,10-dibenzdodeca-1,11-diene-5,7-diyne-1,12-diyl]benzene, 5. To ascertain the structures of 3 and 5, the related model compounds were also prepared.

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47

Lisicki, Dawid, and Beata Orlińska. "Oxidation of cyclic ketones to dicarboxylic acids." Polish Journal of Chemical Technology 20, no. 4 (2018): 102–7. http://dx.doi.org/10.2478/pjct-2018-0061.

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Abstract This paper reports the results of studies concerning an alternative method of obtaining dicarboxylic acids, which consist of the oxidation of cyclic ketones with oxygen or air. The raw materials used were cyclopentanone, cycloheptanone, cyclooctanone, cyclododecanone, 1-tetralon, 2-methylhexanone, 3-methylcyclohexanone and 4-methylcyclohexanone. Oxidation reactions were conducted at 70-100°C, under pressure of 0.1 or 0.4 MPa, for 6 h, utilizing the salts of transition metals as catalyst and acetic acid as solvent. For example, when cyclopentanone was oxidized in the presence of Mn(II)

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48

Okajima, Toshiya, and Yoshimasa Fukazawa. "Transition Structures of [2,3]-Wittig Rearrangement of 2-Oxa-5-methylhexene-1-carboxylic Acid." Chemistry Letters 26, no. 1 (1997): 81–82. http://dx.doi.org/10.1246/cl.1997.81.

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Sun, Ruoshui, and Yicheng Wang. "The total synthesis of Wulfenioidin F." Theoretical and Natural Science 44, no. 1 (2024): 123–26. http://dx.doi.org/10.54254/2753-8818/44/20240956.

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Zika virus, an RNA virus that can cause severe damage to the human body, has long lacked an effective drug. Scientists have discovered recently that Wulfenioidin, a plant distributed in southern China, contains a compound in its root that holds the potential to become an anti-Zika drug. Through extraction, multiple kinds of Wulfenioidin were discovered and their structures were characterized through various spectroscopic methods. However, there isnt a total synthesis pathway for Wulfenioidin. This essay focuses on Wulfenioidin F and provides a full synthesis pathway for the molecule. The route

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REYES, E. D., and N. M. CARBALLEIRA. "ChemInform Abstract: A Short Synthesis of (Z)-15-Methylhexadec-11-enoic Acid." ChemInform 27, no. 41 (2010): no. http://dx.doi.org/10.1002/chin.199641233.

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