Relevant bibliographies by topics / Togni reagent

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters

Academic literature on the topic 'Togni reagent'

Author: Grafiati
Published: 4 June 2021
Last updated: 2 February 2022

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Journal articles on the topic "Togni reagent"

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Yadav, Deepak. "Togni Reagent: A Hypervalent Iodine Based Electrophilic Trifluoromethylation Reagent." Synlett 2010, no. 16 (September 3, 2010): 2523–24. http://dx.doi.org/10.1055/s-0030-1258548.

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Wang, R., I. Kalf, and U. Englert. "Insight into trifluoromethylation – experimental electron density for Togni reagent I." RSC Advances 8, no. 60 (2018): 34287–90. http://dx.doi.org/10.1039/c8ra07187j.

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Kananovich, Dzmitry G., Yulia A. Konik, Dzmitry M. Zubrytski, Ivar Järving, and Margus Lopp. "Simple access to β-trifluoromethyl-substituted ketones via copper-catalyzed ring-opening trifluoromethylation of substituted cyclopropanols." Chemical Communications 51, no. 39 (2015): 8349–52. http://dx.doi.org/10.1039/c5cc02386f.

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Egami, Hiromichi, Takafumi Ide, Yuji Kawato, and Yoshitaka Hamashima. "Benzylic C–H trifluoromethylation of phenol derivatives." Chemical Communications 51, no. 93 (2015): 16675–78. http://dx.doi.org/10.1039/c5cc07011b.

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Phenol derivatives were trifluoromethylated using copper/Togni reagent. Reaction in DMF selectively gave benzylic trifluoromethylation products, whereas aromatic trifluoromethylation products were obtained in t-BuOH.
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Xu, Pan, Ablimit Abdukader, Kaidong Hu, Yixiang Cheng, and Chengjian Zhu. "Room temperature decarboxylative trifluoromethylation of α,β-unsaturated carboxylic acids by photoredox catalysis." Chem. Commun. 50, no. 18 (2014): 2308–10. http://dx.doi.org/10.1039/c3cc48598f.

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Beniazza, Redouane, Maxime Douarre, Dominique Lastécouères, and Jean-Marc Vincent. "Metal-free and light-promoted radical iodotrifluoromethylation of alkenes with Togni reagent as the source of CF3 and iodine." Chemical Communications 53, no. 25 (2017): 3547–50. http://dx.doi.org/10.1039/c7cc00214a.

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Zhang, Bei, Qiupeng Peng, Donghui Guo, and Jian Wang. "NHC-Catalyzed Radical Trifluoromethylation Enabled by Togni Reagent." Organic Letters 22, no. 2 (January 6, 2020): 443–47. http://dx.doi.org/10.1021/acs.orglett.9b04203.

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An, Yuanyuan, Yunyan Kuang, and Jie Wu. "Synthesis of trifluoromethylated 3,4-dihydroquinolin-2(1H)-ones via a photo-induced radical cyclization of benzene-tethered 1,7-enynes with Togni reagent." Organic Chemistry Frontiers 3, no. 8 (2016): 994–98. http://dx.doi.org/10.1039/c6qo00267f.

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A photoinduced radical cyclization of benzene-tethered 1,7-enynes with Togni reagent in the presence of sodium iodide is developed. This transformation works well without any metals or photo-redox catalysts at room temperature.
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Tang, Haosha, Yunyan Kuang, Julan Zeng, Xiaofang Li, Wei Zhou, and Yuan Lu. "Combinatorial synthesis and biological evaluations of (E)-β-trifluoromethyl vinylsulfones as antitumor agents." RSC Advances 9, no. 54 (2019): 31474–82. http://dx.doi.org/10.1039/c9ra06368d.

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(E)-β-Trifluoromethyl vinylsulfones is accomplished through a reaction of alkynes, Togni reagent, and sodium benzenesulfinates under metal-free conditions. p-Acetylphenyl in R1 has the best activities against several tumor cells.
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Hu, Liang, Xiang Chen, Qingwen Gui, Ze Tan, and Gangguo Zhu. "Highly mono-selective ortho-trifluoromethylation of benzamides via 8-aminoquinoline assisted Cu-promoted C–H activations." Chemical Communications 52, no. 41 (2016): 6845–48. http://dx.doi.org/10.1039/c6cc02412b.

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A highly mono-selective ortho-trifluoromethylation of benzamides was achieved via Cu-promoted C–H activations employing an 8-aminoquinoline group as the bidentate directing group and Togni reagent II as the CF3 source.
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Dissertations / Theses on the topic "Togni reagent"

1

Ilchenko, Nadia O. "Novel Applications of Benziodoxole Reagents in the Synthesis of Organofluorine Compounds." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-136207.

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This thesis concerns method development of new synthetic routes by applying electrophilic hypervalent iodine reagents, such as trifluoromethyl-benziodoxole (Togni reagent) and fluoro-benziodoxole. The first project involved the addition of an oxygen moiety and trifluoromethyl group across double and triple bonds (both groups derived from the hypervalent iodine reagent). We observed that electron donating substituents on the aromatic ring of the substrate accelerated the oxytrifluoromethylation reaction. This transformation was further expanded to halo-trifluoromethylation reaction of a vinyl silane substrate. We also developed a copper mediated cyanotrifluoromethylation reaction, which was accelerated by PCy3 additive. This transformation allowed for the creation of two new C-C bonds in a single addition reaction. The direct C-H trifluoromethylation reaction of quinones was achived using the Togni-reagent in the presence of B2pin2 additive. The intriguing additive effects of both B2pin2 and PCy3 inspired us to examine the mechanism of these transformations. Fluoro-benziodoxole is the fluoroiodane analogue of the trifluoromethylating Togni reagent. We developed a AgBF4 mediated geminal difluorination of styrenes using this fluoroiodine reagent. In this process one fluorine atom came from the fluoroiodane, while the other fluorine was derived from the tetrafluoroborate ion. A similar approach was applied for the 1,3-oxyfluorination and difluorination of cyclopropanes. Similarly, this fluorinative ring opening of unactivated cyclopropanes involved the introduction of an electrophilic fluorine atom from the fluoroiodane reagent and a nucleophilic one from the tetrafluoroborate ion. This reaction was extended to synthesis of 1,3-oxyfluorinated products. When alkenes reacted with the fluoro-benziodoxole reagent in the presence of palladium catalyst the iodofluorination reaction occurred.  Both the iodine and fluorine atoms were derived from the fluoroiodane reagent. The iodofluorination reaction with disubstituted and cyclic alkenes proceeded with high regio- and stereoselectivity.
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Fojtík, Lukáš. "Využití radikálového značení proteinů pomocí Togniho činidel ve strukturní biologii." Master's thesis, 2020. http://www.nusl.cz/ntk/nusl-434032.

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Structural proteomic methods such as an ion mobility mass spectrometry, chemical cross- linking or covalent labeling have been established as powerful tools for structural studies of biomolecules in general. These methods have significantly contributed to the expansion of our knowledge about biomolecular functions, their dynamics and molecular interactions and therefore led to the understanding of important biological processes occurring in a cell. We decided to spread these methods and we developed a new radical labeling technique relaying on Fluor-alkyl radicals that does not require a laser dissociation pf hydrogen peroxide. We exploited the potential of Togni reagents to form Fluor-alkyl radicals by reducing agent under native conditions. The induction of Fluor-alkyl radicals was triggered by ascorbic acid and the labeling pulse was stopped by tryptophan. The modified proteins were analyzed by top down or bottom up approach using high resolution mass spectrometry. In case of top down approach, several fragmentation techniques (CID-ECD, ETD) were tested for protein analysis while in case of bottom up approach the analyzed proteins were digested by trypsin and separated on reverse phase column online coupled to mass spectrometer. As the model biomolecules we chose a 20 proteinogenic amino acids...
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Book chapters on the topic "Togni reagent"

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Roynon, Tessa. "Fighting for Rights: from Emmett Till’s Murder to the Ronald Reagan Years." In Toni Morrison and the Classical Tradition, 131–61. Oxford University Press, 2013. http://dx.doi.org/10.1093/acprof:oso/9780199698684.003.0006.

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