Academic literature on the topic 'Alkenes' oxidation'

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Journal articles on the topic "Alkenes' oxidation"

1

Cao, Hongen, Rongrong Qian, and Lei Yu. "Selenium-catalyzed oxidation of alkenes: insight into the mechanisms and developing trend." Catalysis Science & Technology 10, no. 10 (2020): 3113–21. http://dx.doi.org/10.1039/d0cy00400f.

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Recent progresses of the selenium-catalyzed oxidation of alkenes are summarized at the mechanism level. It may be beneficial for designing novel selenium-containing catalysts and alkene oxidation protocols for the next phase of studies.
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2

McClay, Kevin, Brian G. Fox, and Robert J. Steffan. "Toluene Monooxygenase-Catalyzed Epoxidation of Alkenes." Applied and Environmental Microbiology 66, no. 5 (2000): 1877–82. http://dx.doi.org/10.1128/aem.66.5.1877-1882.2000.

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ABSTRACT Several toluene monooxygenase-producing organisms were tested for their ability to oxidize linear alkenes and chloroalkenes three to eight carbons long. Each of the wild-type organisms degraded all of the alkenes that were tested. Epoxides were produced during the oxidation of butene, butadiene, and pentene but not hexene or octadiene. A strain of Escherichia coli expressing the cloned toluene-4-monooxygenase (T4MO) of Pseudomonas mendocina KR1 was able to oxidize butene, butadiene, pentene, and hexene but not octadiene, producing epoxides from all of the substrates that were oxidized
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3

Perez-Benito, Joaquin F., and Donald G. Lee. "Oxidation of hydrocarbons. 15. A study of the oxidation of alkenes by methyltributylammonium permanganate." Canadian Journal of Chemistry 63, no. 12 (1985): 3545–50. http://dx.doi.org/10.1139/v85-582.

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A study of the reduction of methyltributylammonium permanganate by a large number of alkenes in methylene chloride has dispelled a current uncertainty concerning the nature of the inorganic product obtained. It is colloidal manganese dioxide and not a manganate(V) cyclic diester as previously supposed. This product is stabilized in methylene chloride solutions by adsorption of the alkene, which decreases its polarity at the solvent interphase. The solubility of the colloid is therefore a function of both the concentration and the identity of the alkene. In certain (atypical) cases, where acidi
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4

Hajimohammadi, Mahdi, and Nasser Safari. "Photooxygenation of alkenes by molecular oxygen in the presence of porphyrins and chlorin sensitizers under visible light irradiation." Journal of Porphyrins and Phthalocyanines 14, no. 07 (2010): 639–45. http://dx.doi.org/10.1142/s1088424610002446.

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Photooxidation of alkenes by molecular oxygen and visible light in the presence of tetraphenylporphyrin (H2TPP) , tetramesitylporphyrin (H2TMP) , tetrakis pentafluorophenylporphyrin (H2TPFPP) and tetrakis(2,3-dimetoxyphenyl)porphyrin T(2,3-OMeP)P and metalloporphyrins such as ClFeTPP , ClMnTMP , ClMnTPP , ClMnTPFPP , ClCoTPP and ZnTPP has been performed. Photooxidation of alkenes with tetraphenylchlorin (H2TPC) as the sensitizer with visible light has also been studied. The conversion rates for alkene oxidation were in the order of free-base porphyrins > chlorin > metalloporphyrins. In t
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5

Grossi, Vincent, Cristiana Cravo-Laureau, Alain Méou, Danielle Raphel, Frédéric Garzino, and Agnès Hirschler-Réa. "Anaerobic 1-Alkene Metabolism by the Alkane- and Alkene-Degrading Sulfate Reducer Desulfatibacillum aliphaticivorans Strain CV2803T." Applied and Environmental Microbiology 73, no. 24 (2007): 7882–90. http://dx.doi.org/10.1128/aem.01097-07.

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ABSTRACT The alkane- and alkene-degrading, marine sulfate-reducing bacterium Desulfatibacillum aliphaticivorans strain CV2803T, known to oxidize n-alkanes anaerobically by fumarate addition at C-2, was investigated for its 1-alkene metabolism. The total cellular fatty acids of this strain were predominantly C-(even number) (C-even) when it was grown on C-even 1-alkenes and predominantly C-(odd number) (C-odd) when it was grown on C-odd 1-alkenes. Detailed analyses of those fatty acids by gas chromatography-mass spectrometry after 6- to 10-week incubations allowed the identification of saturate
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6

Cermenati, Laura, Maurizio Fagnoni, and Angelo Albini. "TiO2-photocatalyzed reactions of some benzylic donors." Canadian Journal of Chemistry 81, no. 6 (2003): 560–66. http://dx.doi.org/10.1139/v03-048.

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TiO2-photocatalyzed oxidation of toluene (1a), benzyltrimethylsilane (1b), and 4-methoxybenzyltrimethylsilane (1c) has been carried out in acetonitrile under oxygen, under nitrogen, and in the presence of electrophilic alkenes under various conditions (using Ag2SO4 as electron acceptor, adding 2.5% H2O, changing solvent to CH2Cl2). Benzyl radicals, formed via electron transfer and fragmentation, are trapped. A good material balance is often obtained. The overall efficiency of the process depends on the donor Eox, on the rate of fragmentation of the radical cation, and on the acceptor present (
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7

Niku-Paavola, M. L., and L. Viikari. "Enzymatic oxidation of alkenes." Journal of Molecular Catalysis B: Enzymatic 10, no. 4 (2000): 435–44. http://dx.doi.org/10.1016/s1381-1177(99)00117-4.

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8

Mckee, C. S. "Oxidation of higher alkenes." Applied Catalysis A: General 106, no. 2 (1993): N20—N21. http://dx.doi.org/10.1016/0926-860x(93)80185-s.

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9

Teng, A. P., J. D. Crounse, L. Lee, J. M. St. Clair, R. C. Cohen, and P. O. Wennberg. "Hydroxy nitrate production in the OH-initiated oxidation of alkenes." Atmospheric Chemistry and Physics Discussions 14, no. 5 (2014): 6721–57. http://dx.doi.org/10.5194/acpd-14-6721-2014.

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Abstract. Alkenes generally react rapidly by addition of OH and subsequently O2 to form beta hydroxy peroxy radicals. These peroxy radicals react with NO to form beta hydroxy nitrates with a branching ratio α. We quantify α for C2–C8 alkenes at 296 K ±3 and 993 hPa. The branching ratio can be expressed as α = (0.042 ± 0.008) × N − (0.11 ± 0.04) where N is the number of heavy atoms (excluding the peroxy moiety), and listed errors are 2σ. These branching ratios are larger than previously reported and are similar to those for peroxy radicals formed from H abstraction from alkanes. We find the iso
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10

Teng, A. P., J. D. Crounse, L. Lee, J. M. St. Clair, R. C. Cohen, and P. O. Wennberg. "Hydroxy nitrate production in the OH-initiated oxidation of alkenes." Atmospheric Chemistry and Physics 15, no. 8 (2015): 4297–316. http://dx.doi.org/10.5194/acp-15-4297-2015.

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Abstract. Alkenes are oxidized rapidly in the atmosphere by addition of OH and subsequently O2 leading to the formation of β-hydroxy peroxy radicals. These peroxy radicals react with NO to form β-hydroxy nitrates with a branching ratio α. We quantify α for C2–C8 alkenes at 295 K ± 3 and 993 hPa. The branching ratio can be expressed as α = (0.045 ± 0.016) × N − (0.11 ± 0.05) where N is the number of heavy atoms (excluding the peroxy moiety), and listed errors are 2σ. These branching ratios are larger than previously reported and are similar to those for peroxy radicals formed from H abstraction
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