Добірка наукової літератури з теми "Diaryliodonium salt"

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Статті в журналах з теми "Diaryliodonium salt"

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Corrie, Tom J. A., and Guy C. Lloyd-Jones. "Formal Synthesis of (±)-Allocolchicine Via Gold-Catalysed Direct Arylation: Implication of Aryl Iodine(III) Oxidant in Catalyst Deactivation Pathways." Topics in Catalysis 60, no. 8 (2017): 570–79. http://dx.doi.org/10.1007/s11244-017-0742-z.

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Abstract A concise formal synthesis of racemic allocolchicine has been developed, centred on three principal transformations: a retro-Brook alkylation reaction to generate an arylsilane, a gold-catalysed arylative cyclisation to generate the B-ring via biaryl linkage, and a palladium-catalysed carbonylation of an aryl chloride to generate an ester. 1H NMR monitoring of the key gold-catalysed cyclisation step reveals that a powerful catalyst deactivation process progressively attenuates the rate of catalyst turnover. The origins of the catalyst deactivation have been investigated, with an uncat
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Chen, Yu, Xiaoqin Jia, Mengqiang Wang, and Tao Wang. "A synergistic effect of a ferrocenium salt on the diaryliodonium salt-induced visible-light curing of bisphenol-A epoxy resin." RSC Advances 5, no. 42 (2015): 33171–76. http://dx.doi.org/10.1039/c4ra16077k.

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3

Crivello, J. V., and J. L. Lee. "Alkoxy-substituted diaryliodonium salt cationic photoinitiators." Journal of Polymer Science Part A: Polymer Chemistry 27, no. 12 (1989): 3951–68. http://dx.doi.org/10.1002/pola.1989.080271207.

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Wang, Ming, Jianpeng Wei, Qiaoling Fan, and Xuefeng Jiang. "Cu(ii)-catalyzed sulfide construction: both aryl groups utilization of intermolecular and intramolecular diaryliodonium salt." Chemical Communications 53, no. 20 (2017): 2918–21. http://dx.doi.org/10.1039/c6cc09201b.

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Xia, Xiao-Feng, Guo-Wei Zhang, An-Xi Zhou, and Wei He. "Copper-Catalyzed Base-Free N-Arylation of 8-Aminoquinoline Amides through Chelation Assistance." Synlett 29, no. 17 (2018): 2269–74. http://dx.doi.org/10.1055/s-0037-1610906.

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A new and efficient approach for the N-arylation of 8-aminoquinoline amides with diaryliodonium salts has been developed. This chelation-assisted selective C–N cross-coupling reaction gave the desired N-arylated 8-aminoquinoline in moderate to good yields. In contrast to previous reports, no additional ligands and bases are used in this transformation. In addition, the anion of the diaryliodonium salt plays an important role in the success of the process.
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Lin, Zhaowei, Maojian Lu, Boyi Liu, et al. "Oxidative alkylation of alkenes with carbonyl compounds through concomitant 1,2-aryl migration by photoredox catalysis." New Journal of Chemistry 44, no. 37 (2020): 16031–35. http://dx.doi.org/10.1039/d0nj03733h.

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7

Li, Shiqing, Hongxu Lv, Yu Yu, et al. "Domino N-/C- or N-/N-/C-arylation of imidazoles to yield polyaryl imidazolium salts via atom-economical use of diaryliodonium salts." Chemical Communications 55, no. 75 (2019): 11267–70. http://dx.doi.org/10.1039/c9cc05237b.

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A Cu-mediated domino di-/triarylation reaction of imidazoles in a single step by using two aryls as well as an anion of a diaryliodonium salt is developed to quickly achieve polyaryl imidazolium salts.
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Das, Prajwalita, Etsuko Tokunaga, Hidehiko Akiyama, Hiroki Doi, Norimichi Saito та Norio Shibata. "Synthesis of fluoro-functionalized diaryl-λ3-iodonium salts and their cytotoxicity against human lymphoma U937 cells". Beilstein Journal of Organic Chemistry 14 (7 лютого 2018): 364–72. http://dx.doi.org/10.3762/bjoc.14.24.

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Conscious of the potential bioactivity of fluorine, an investigation was conducted using various fluorine-containing diaryliodonium salts in order to study and compare their biological activity against human lymphoma U937 cells. Most of the compounds tested are well-known reagents for fluoro-functionalized arylation reactions in synthetic organic chemistry, but their biological properties are not fully understood. Herein, after initially investigating 18 fluoro-functionalized reagents, we discovered that the ortho-fluoro-functionalized diaryliodonium salt reagents showed remarkable cytotoxicit
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Crivello, James V., and Michael F. Aldersley. "Supramolecular diaryliodonium salt‐crown ether complexes as cationic photoinitiators." Journal of Polymer Science Part A: Polymer Chemistry 51, no. 4 (2012): 801–14. http://dx.doi.org/10.1002/pola.26452.

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Reinhard, Dominik L., Anna Schmidt, Marc Sons, Julian Wolf, Elric Engelage, and Stefan M. Huber. "Evaluating the halogen bonding strength of a iodoloisoxazolium(III) salt." Beilstein Journal of Organic Chemistry 20 (September 23, 2024): 2401–7. http://dx.doi.org/10.3762/bjoc.20.204.

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Diaryliodonium(III) salts have been established as powerful halogen-bond donors in recent years. Herein, a new structural motif for this compound class was developed: iodoloisoxazolium salts, bearing a cyclic five-membered iodolium core fused with an isoxazole ring. A derivative of this class was synthesized and investigated in the solid state by X-ray crystallography. Finally, the potential as halogen-bonding activator was benchmarked in solution in the gold-catalyzed cyclization of a propargyl amide.
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Дисертації з теми "Diaryliodonium salt"

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Corakci, Bengisu. "Substituted Quinoxaline And Benzimidazole Containing Monomers As Long Wavelength Photosensitizers For Diaryliodonium Salt Initiators In Photopolymerization." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615458/index.pdf.

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In this study<br>ferrocenyl and naphthalenyl substituted quinoxaline derivatives<br>5,8- bis (2,3- dihydrothieno [3,4-b] [1,4] dioxin-5-yl)-2- (naphthalen-2-yl)- 3- ferrocenyl- 4a,8a-dihydroquinoxaline<br>5,8- bis (2,3-dihydrothieno [3,4-b] [1,4]dioxin-5-yl) -2- (phenyl) -3-ferrocenylquinoxaline<br>5,8-bis (2,3-dihydrothieno [3,4-b] [1,4]dioxin-5-yl) -2,3- di(naphthalen-2-yl)quinoxaline and trihexylthiophene and thiophene coupled benzimidazole derivatives<br>4-(tert-butyl)-4,7-bis(4-hexylthiophen-2-yl)spiro[benzo[d]imidazole-2,1-cyclohexane] and 4-(tert-butyl)-4, 7-bis(thiophenyl)spiro[benzo[d
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Peacock, Martin James. "The electrosynthesis of diaryliodonium salts." Thesis, University of Southampton, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326302.

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Marchal, Lucas. "Synthèse de nouveaux candidats médicamenteux présentant une chiralité axiale C-N par le développement de nouveaux couplages C-N atroposélectifs." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAF029.

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Les composés à chiralité axiale C–N ont démontré un potentiel significatif dans divers domaines, en particulier dans l'industrie pharmaceutique. Cependant, il existe actuellement peu de méthodologies connues permettant d’accéder à ces composés, et elles sont généralement limitées à des structures moléculaires très spécifiques. Afin de préparer de nouveaux atropisomères C–N d'intérêt, des méthodologies synthétiques innovantes doivent être développées. À cette fin, nous avons concentré nos efforts sur l'utilisation de sels de diaryliodonium comme partenaires de couplage hautement réactifs, ce qu
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Bielawski, Marcin. "Efficient and High-Yielding Routes to Diaryliodonium Salts." Licentiate thesis, Stockholm : Department of Organic Chemistry, Stockholm University, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-7969.

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Lindstedt, Erik. "Metal-Free O- and C-Arylation with Diaryliodonium Salts." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-140944.

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This thesis concerns the development of metal-free applications using diaryliodonium salts. The first project describes an arylation protocol of allylic and benzylic alcohols in aqueous media. The method proceeds under mild conditions and the ether products were obtained in moderate to good yields. The methodology was also expanded to include arylation of phenols, giving diaryl ethers in good to excellent yields. In the second project, an arylation method that included a wider range of aliphatic alcohols was developed. The scope of accessible alkyl aryl ethers was studied and included a compar
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Seidl, Thomas Ludwig. "The Preparation of Diaryliodonium Salts for Application in Arylation Chemistry." PDXScholar, 2018. https://pdxscholar.library.pdx.edu/open_access_etds/4238.

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Diaryliodonium salts offer potential as novel reagents for arylation chemistry. An overall goal and successful outcome of this work has been to further understanding of diaryliodonium salt chemistry by developing practical methods that enable chemists more convenient access to these reagents, for the purpose of reaction development. To this end a robust and convenient preparation method has been developed and resulted in novel commercially available diaryliodonium salts. The remainder of the work described, has focused on understanding the parameters important to diaryliodonium mediated arylat
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Malmgren, Joel. "Iodonium Salts : Preparation, Chemoselectivity and Metal-Catalyzed Applications." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-107694.

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This thesis concerns the preparation and use of diaryliodonium salts. In Project I various unsymmetrical diaryliodonium salts were reacted with three different nucleophiles in order to study the chemoselectivity of the reactions of the salts. The main focus of this project was to gain a deeper understanding of the underlying factors that affect the chemoselectivity in transition metal-free arylation reactions. They were found to be very nucleophile-dependent. Some nucleophiles were very sensitive to electronic effects, whereas others were sensitive to steric factors. Ultimately, some arenes ar
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8

Kolay, Merve. "Dibenzophenazine And Quinoxaline Derivatives As Novel Visible Photosensitizers For Diaryliodonium Salts." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613419/index.pdf.

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This study is focused on the use of visible light in photoinitiated cationic polymerization. Photoinitiated polymerization of oxiranes, vinyl ethers, and other vinyl monomers was achieved. In doing so, (2-(2,3 dihydrobenzo [b][1,4]dioxin-6-yl)-3-(2,3-dihydrobenzo[b]-[1,4]dioxin-7-yl)-5-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-8-(2,3-dihydrothieno[3,4-b][1,4]dioxin-7yl) quinoxaline) (DBQEd) and poly(2,3,5,8-tetra(thiophen-2-yl)quinoxaline) (TTQ), two dibenzo[a,c]phenazine derivatives<br>10,13-bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)dibenzo[a,c] phenazine (PHED) and 10,13-bis(4-hexylthiop
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Bielawski, Marcin. "Diaryliodonium Salts : Development of Synthetic Methodologies and α-Arylation of Enolates". Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-54738.

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This thesis describes novel reaction protocols for the synthesis of diaryliodonium salts and also provides an insight to the mechanism of α-arylation of carbonyl compounds with diaryliodonium salts.  The first chapter gives a general introduction to the field of hypervalent iodine chemistry, mainly focusing on recent developments and applications of diaryliodonium salts. Chapter two describes the synthesis of electron-rich to electron-poor diaryliodonium triflates, in moderate to excellent yields from a range of arenes and iodoarenes. In chapter three, it is described that molecular iodine can
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Sundalam, Sunil Kumar. "The Discovery and Development of Metal-Free Arylation Reactions with Unsymmetrical Diaryliodonium Salts." PDXScholar, 2017. https://pdxscholar.library.pdx.edu/open_access_etds/3764.

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Functionalizing arenes and heteroarenes has been an active area of research since the 19th century, due to the presence of these molecular structures in many industrially important sectors. A tremendous amount of research has been published in achieving these chemical transformations using stoichiometric reagents and transition metal-catalyzed reactions. However, challenges still remain. An alternative and comparable methodology to metal-catalyzed reactions to overcome the drawbacks will advance this particular area of research is desirable. Hypervalent iodine compounds offer a promising appro
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Частини книг з теми "Diaryliodonium salt"

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Crivello, James V. "Diaryliodonium Salt Photoacid Generators." In Iodine Chemistry and Applications. John Wiley & Sons, Inc, 2014. http://dx.doi.org/10.1002/9781118909911.ch25.

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Olofsson, Berit. "Arylation with Diaryliodonium Salts." In Hypervalent Iodine Chemistry. Springer International Publishing, 2015. http://dx.doi.org/10.1007/128_2015_661.

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Qu, Wenchao, and Ximin Li. "Fluorination of Diaryliodonium Salts for Preparing Aryl Fluorides." In Fluorination. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-1855-8_12-1.

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Qu, Wenchao, and Ximin Li. "Fluorination of Diaryliodonium Salts for Preparing Aryl Fluorides." In Fluorination. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-1855-8_12-2.

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Qu, Wenchao, and Ximin Li. "Fluorination of Diaryliodonium Salts for Preparing Aryl Fluorides." In Fluorination. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-10-3896-9_12.

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Moorjani, S. K., B. Rangarajan, and Alec B. Scranton. "Effect of Viscosity on the Rate of Photosensitization of Diaryliodonium Salts by Anthracene." In ACS Symposium Series. American Chemical Society, 1997. http://dx.doi.org/10.1021/bk-1997-0673.ch008.

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Schilling, B., and D. E. Kaufmann. "With Diaryliodonium Salts." In Boron Compounds. Georg Thieme Verlag KG, 2005. http://dx.doi.org/10.1055/sos-sd-006-00214.

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Тези доповідей конференцій з теми "Diaryliodonium salt"

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Malmgren, Joel, Nazli Jalalian, and Berit Olofsson. "Chemoselectivity Investigation on Arylations Using Diaryliodonium Salts." In 14th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0265-1.

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Malmgren, Joel, Nazli Jalalian, and Berit Olofsson. "Chemoselectivity Investigation in Arylations with Diaryliodonium Salts." In 14th Brazilian Meeting on Organic Synthesis. Editora Edgard Blücher, 2013. http://dx.doi.org/10.5151/chempro-14bmos-r0265-2.

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Besson, Thierry, Corinne Fruit, and Alexandra Pacheco-Benichou. "Microwave-assisted copper catalyzed C-H arylation of bioactive pyrimidinones using diaryliodoniums salts." In 7th International Electronic Conference on Medicinal Chemistry. MDPI, 2021. http://dx.doi.org/10.3390/ecmc2021-11583.

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Skulski, Lech, and Lukasz Kraszkiewicz. "Facile Syntheses of Symmetrical Diaryliodonium Salts from Various Arenes, with Sodium Metaperiodate as the Coupling Reagent in Acidic Media." In The 9th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2005. http://dx.doi.org/10.3390/ecsoc-9-01480.

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Звіти організацій з теми "Diaryliodonium salt"

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Seidl, Thomas. The Preparation of Diaryliodonium Salts for Application in Arylation Chemistry. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.6122.

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2

Nilova, Aleksandra. Aryne-Guided C-H Functionalization of Benzenoid Rings Using Diaryliodonium Salts. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.7474.

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Sundalam, Sunil. The Discovery and Development of Metal-Free Arylation Reactions with Unsymmetrical Diaryliodonium Salts. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.5648.

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Jayatissa, Kuruppu. A Metal-Free Approach to Biaryl Compounds: Carbon-Carbon Bond Formation from Diaryliodonium Salts and Aryl Triolborates. Portland State University Library, 2000. http://dx.doi.org/10.15760/etd.2226.

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