Academic literature on the topic 'Oxazolium salts'

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Journal articles on the topic "Oxazolium salts"

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Gerster, Holger, and Gerhard Maas. "Diverse Reactivities of Acetylenic Iminium Salts Toward 1,3-Oxazolium-5-olates (Münchnones)." Zeitschrift für Naturforschung B 63, no. 4 (2008): 384–94. http://dx.doi.org/10.1515/znb-2008-0405.

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AbstractThe acetylenic iminium salts [(c-C3H5)C≡C-C(Ar)=N+Me2]OTf, Ar = phenyl (1a) or 2- thienyl (1b), both react in different ways with three mesoionic münchnones, namely 3-methyl-1,3-oxazolium-5-olate (2), 3-methyl-2-phenyl-1,3-oxazolium-5-olate (6) and 3-methyl-2-phenyl-4- trifluoroacetyl-1,3-oxazolium-5-olate (9). With 2, a [3+2] cycloaddition reaction followed by extrusion of CO2 yields pyrroles 5a, b. In the case of 6, the new münchnones 7a, b are obtained which result from an electrophilic substitution at C-4 by the acetylenic iminium cation. In contrast to 1a, b, the 4,4-but-2-yne 1-i
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Vedejs, E., and J. W. Grissom. "4-Oxazoline route to stabilized azomethine ylides. Controlled reduction of oxazolium salts." Journal of the American Chemical Society 110, no. 10 (1988): 3238–46. http://dx.doi.org/10.1021/ja00218a038.

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Salado, Manuel, Erfan Shirzadi, Samrana Kazim, et al. "Oxazolium Iodide Modified Perovskites for Solar Cell Fabrication." ChemPlusChem 83, no. 4 (2020): 279–84. https://doi.org/10.1002/cplu.201700471.

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Perovskites solar cells are gaining interest due to their attractive solar-to-electricity conversion efficiencies, although they suffer from certain problems, such as sub-optimal ion migration and stability issues. We studied the inclusion of a phenyloxazolium salt (2-phenyl-3-methyl-oxazolium iodide) in methyl ammonium lead triiodide (MAPbI<sub>3</sub>) based perovskite solar cells. The fabricated solar cells not only gave improved photovoltaic properties, but importantly the oxazolium cation can protect the perovskite layers from UV exposure as it down-converts electromagnetic irradiation, i
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Garapati, Venkata Krishna Rao, and Michel Gravel. "Oxazolium Salts as Organocatalysts for the Umpolung of Aldehydes." Organic Letters 20, no. 20 (2018): 6372–75. http://dx.doi.org/10.1021/acs.orglett.8b02636.

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Fisyuk, A. S., та M. A. Vorontsova. "New rearrangement of oxazolium salts into Δ3-pyrrolin-2-ones". Chemistry of Heterocyclic Compounds 33, № 7 (1997): 857–58. http://dx.doi.org/10.1007/bf02253041.

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Hassner, Alfred, and Bilha Fischer. "Cycloadditions. 50. Multipath reactions between intramolecularly formed oxazolium salts and nucleophiles." Journal of Organic Chemistry 57, no. 11 (1992): 3070–75. http://dx.doi.org/10.1021/jo00037a023.

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FISYUK, A. S., та M. A. VORONTSOVA. "ChemInform Abstract: New Rearrangement of Oxazolium Salts to Δ3-Pyrrolin-2-ones." ChemInform 29, № 2 (2010): no. http://dx.doi.org/10.1002/chin.199802106.

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Vedejs, E., and J. W. Grissom. "Nucleophilic addition to oxazolium salts. Stabilized azomethine ylides via 2-substituted 4-oxazolines." Journal of Organic Chemistry 53, no. 9 (1988): 1876–82. http://dx.doi.org/10.1021/jo00244a008.

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Hassner, Alfred, and Bilha Fischer. "Intramolecular formation of oxazolium salts and their reaction with N- and C-nucleophiles." Tetrahedron Letters 31, no. 49 (1990): 7213–14. http://dx.doi.org/10.1016/s0040-4039(00)97282-4.

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Korepin, A. G., P. V. Galkin, N. M. Glushakova, et al. "Preparation of quaternary ammonium salts with a perhydroimidazo[1,5-c]oxazolium molecular skeleton." Russian Chemical Bulletin 59, no. 5 (2010): 1061–62. http://dx.doi.org/10.1007/s11172-010-0207-z.

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Book chapters on the topic "Oxazolium salts"

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Cordero, F. M., and S. Cicchi. "Nucleophilic Addition to Oxazolium Salts." In Three Carbon-Heteroatom Bonds: Amides and Derivatives; Peptides; Lactams. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-022-00418.

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Grimmett, M. R. "Reaction of Oxazolium Salts with Amines." In Five-Membered Hetarenes with Two Nitrogen or Phosphorus Atoms. Georg Thieme Verlag KG, 2002. http://dx.doi.org/10.1055/sos-sd-012-00532.

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Conference papers on the topic "Oxazolium salts"

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Stesikova, Elvira, Tammy L. Metroke, Perry L. Reed, Vinod S. Agarwala, and Edward T. Knobbe. "Impact of Trivalent Chromium Conversion Layers and Hybrid Silicate Coatings on Corrosion Resistance of Aluminum Alloys." In CORROSION 2000. NACE International, 2000. https://doi.org/10.5006/c2000-00287.

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Abstract Trivalent chromium conversion coatings have been deposited onto aluminum 2024-T3 alloy by immersion into or by spraying on a solution of chromic sulfate and hexafluorozirconate for periods of time varying from 3 minutes to 5 days. This treatment was followed by the deposition of hybrid silicate materials containing different organic modifiers [vinyl, methacrylate, epoxide functionalities and poly(2-ethyl-2-oxazoline)] to produce composite coatings. Aluminum alloys coated with the composite films, as well as single-layer coated aluminum alloys, i.e. coated with the conversion coating o
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