Relevant bibliographies by topics / Halogenated alkyls

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

Academic literature on the topic 'Halogenated alkyls'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "Halogenated alkyls"

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Coulibali, Siomenan, Souleymane Coulibaly, Patrick-Armand Achi, Kouassi Yves Guillaume Sissouma Drissa Molou, and Ané Adjou. "Synthesis of New Thiazolopyrimidines and 2-Alkylthiopyrimidines Derivatives." Pharmaceutical and Chemical Journal 9, no. 1 (2022): 5–10. https://doi.org/10.5281/zenodo.13970008.

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In this work, we reported the synthesis of derivative&rsquo;s 2-thiopyrimidine substituted on the positions -1 and -2 by the alkyl groups. The bicyclic scaffold (<strong>6a</strong> and <strong>6b</strong>) were obtained via condensation of 2-thiopyrimidines (<strong>4a</strong> and <strong>4b</strong>) with dihalogenated ethane <strong>5</strong> in the presence of potassium carbonate<strong>.</strong> We got the 2-thioalkylpyrimidine derivatives (<strong>8a</strong>-<strong>f</strong>) with the same workup, condensing halogenated alkyls <strong>7</strong> with 2-thiopyrimidines (<strong>4a</
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Nomura, Kotohiro, Itsuki Izawa, Mahaharu Kuboki, Kensuke Inoue, Hirotaka Aoki, and Ken Tsutsumi. "Solution XAS Analysis for Reactions of Phenoxide-Modified (Arylimido)vanadium(V) Dichloride and (Oxo)vanadium(V) Complexes with Al Alkyls: Effect of Al Cocatalyst in Ethylene (Co)polymerization." Catalysts 12, no. 2 (2022): 198. http://dx.doi.org/10.3390/catal12020198.

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V K-edge XANES (XANES = X-ray Absorption Near Edge Structure) spectra of the reaction solution of V(NAr)Cl2(OAr) (1, Ar = 2,6-Me2C6H3) with halogenated Al alkyls (Me2AlCl, Et2AlCl, EtAlCl2, 50 equiv) in toluene showed low energy shifts (2.6–3.6 eV on the basis of inflection point in the photon energy) in the edge absorption accompanying slight shift to low photon energy in the pre-edge peak (λmax values); a similar spectrum was observed when the reaction of 1 with Me2AlCl was conducted in n-hexane. These results strongly suggest a formation of similar vanadium(III) species irrespective of kind
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Igarashi, Atsushi, Wenjuan Zhang, Wen-Hua Sun, and Kotohiro Nomura. "Ethylene Polymerization Using (Imino)vanadium(V) Dichloride Complexes Containing (Anilido)methyl-pyridine, -quinoline Ligands–Halogenated Al Alkyls Catalyst Systems." Catalysts 3, no. 1 (2013): 148–56. http://dx.doi.org/10.3390/catal3010148.

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Liu, Yan, Huayou Hu, Junyu Zhou, Wenhui Wang, Youliang He, and Chao Wang. "Application of primary halogenated hydrocarbons for the synthesis of 3-aryl and 3-alkyl indolizines." Organic & Biomolecular Chemistry 15, no. 23 (2017): 5016–24. http://dx.doi.org/10.1039/c7ob00980a.

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A transition-metal-free synthetic route to 3-aryl and 3-alkyl indolizines from electron-deficient alkenes, pyridines and primary halogenated hydrocarbons is reported for the first time using a tandem reaction.
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Ai, Youhong, Yangyang Zhan, Dongbo Cai та Shouwen Chen. "A Convenient and Highly Efficient Strategy for Esterification of Poly (γ-Glutamic Acid) with Alkyl Halides at Room Temperature". Polymers 17, № 1 (2024): 10. https://doi.org/10.3390/polym17010010.

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The presented work discusses the highly efficient esterification of poly (γ-glutamic acid) (γ-PGA) with alkyl halides at room temperature. The esterification reaction was completed within 3 h, and the prepared γ-PGA esters were obtained with excellent yields (98.6%) when 1,1,3,3-tetramethylguanidine (TMG) was used as a promoter. The influence of the amount of TMG, solvent, reaction conditions, and alkyl halides on the esterification reaction was examined. It was found that polar aprotic solvents, such as N-Methylpyrrolidone (NMP) and 1,3-Dimethyl-2-imidazolidinone (DMI), were favorable for the
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Dong, Zhi-Bing, Jin-Quan Chen, and Jia Guo. "Three-Component Synthesis of 2-Alkylthiobenzoazoles in Aqueous Media." Synthesis 52, no. 13 (2020): 1927–33. http://dx.doi.org/10.1055/s-0039-1690854.

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A highly efficient three-component protocol for the synthesis of the 2-alkylthiobenzoazoles is described. Tetramethylthiuram disulfide (TMTD) cyclized with o-aminothiophenols, generating the intermediate 2-mercaptobenzothiazoles, and the successive C–S coupling with halogenated alkanes afforded a series of 2-alkyl-substituted thiobenzothiazoles smoothly in a one-pot process. This procedure could also be utilized for the preparation of 2-alkyl-substituted thiobenzoxazoles and 2-alkyl-substituted thiobenzimidazoles. Inexpensive and easily available starting materials, metal catalyst-free, broad
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Matyugina, Elena S., Evgeniya B. Logashenko, Marina A. Zenkova, Sergey N. Kochetkov, and Anastasia L. Khandazhinskaya. "5′-Norcarbocyclic analogues of furano[2,3-d]pyrimidine nucleosides." Heterocyclic Communications 21, no. 5 (2015): 259–62. http://dx.doi.org/10.1515/hc-2015-0160.

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Abstract5′-Norcarbocyclic analogues of furano[2,3-d]pyrimidine nucleosides as well as 5-bromo and 5-iodouracil derivatives were synthesized to evaluate their potential antitumor activity. The halogenated derivatives display no cytotoxicity with respect to all tested cells: KB-3-1 (human epidermoid carcinoma), HeLa (human cervical epithelioid carcinoma), HuTu-80 (human duodenal cancer), B16 (mouse melanoma), and MDCK (normal epithelial). The cytotoxicity of the non-halogenated furano[2,3-d]pyrimidine derivatives increases with the lengthening of the alkyl chain of the substituent from 45 to 60
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Lee, Hing-Biu, M. Lewina Svoboda, Thomas E. Peart, and Shirley Anne Smyth. "Optimization of a microwave-assisted extraction procedure for the determination of selected alkyl, aryl, and halogenated phenols in sewage sludge and biosolids." Water Quality Research Journal 51, no. 4 (2016): 344–56. http://dx.doi.org/10.2166/wqrjc.2016.002.

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A microwave-assisted extraction method for the determination of 15 alkyl, aryl, and halogenated phenols in sewage sludge and biosolids samples was developed and optimized. The effects of solvent, temperature, time, moisture content, acid, and number of extractions on the recovery of phenols were evaluated. Results indicated that extraction solvent had the greatest impact on the recovery of all phenols while pH had the largest effect on recovery of hexachlorophene and pentachlorophenol. Wet sludge samples were extracted with acetone-hexane mixture in the presence of glacial acetic acid. The ext
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Ding, Xu, Geng Zhu, Jian-Ning Guan та Guo-Zhi Han. "Selective Reduction of Nitro Group in Aryl Halides Catalyzed by Silver Nanoparticles Modified with β-CD". Journal of Nanoscience and Nanotechnology 18, № 12 (2018): 8201–6. http://dx.doi.org/10.1166/jnn.2018.16406.

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In this paper, we first report the selective reduction of nitro group in aryl halides catalyzed by silver nanoparticles modified with β-CD. Taking advantage of hydrophobic lumen and donor–acceptor behavior of β-CD, the halogenated alkyl groups on the aromatic ring can be enveloped in the inner cavity that thereby inhibits the reduction of the halogen. For validating the mechanism proposed by us, different silver nanoparticles were applied in parallel experiments. In our experiments, UV-vis spectra and NMR spectra were used to characterize the selectivity. This strategy represents an outstandin
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Cao, Guo Min, Fang Hong, Mei Sheng, Xiao Dan Shuai, and Lin Hu. "Research on the Reutilization Technology of the Brine from Vinylidene Chloride Synthesis." Advanced Materials Research 610-613 (December 2012): 2242–45. http://dx.doi.org/10.4028/www.scientific.net/amr.610-613.2242.

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The brine from vinylidene chloride (VDC) synthesis contains high concentration of sodium chloride and halogenated hydrocarbons which are all volatile organic chemicals (VOCs). Based on the contaminations’ characteristics in the brine, an air-stripping process was firstly applied for removing most of the halogenated hydrocarbons in the brine, and then the H2O2/UV oxidation process was used for polishing treatment so that the treated brine could be reused as a raw material for a chloro-alkali process. The results showed the residual TOC after air-stripping could be effectively removed by H2O2/UV
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Dissertations / Theses on the topic "Halogenated alkyls"

1

Newland, M. J. "Long term trends of halogenated trace gases, hydrocarbons, alkyl nitrates and of the oxidative capacity of the atmosphere." Thesis, University of East Anglia, 2013. https://ueaeprints.uea.ac.uk/49485/.

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Atmospheric trends of a series of ozone depleting substances (halons) and greenhouse gases (PFCs, SF5CF3, HFC-227ea) are reported using measurements from Cape Grim, Tasmania. A two-dimensional global atmospheric chemistry transport model is used to derive global annual emission histories of these long lived gases. Emissions of the halons are found to have decreased since peaking in the 1990s. There is still some considerable uncertainty in the remaining banks of the halons caused by uncertainties in their atmospheric lifetimes and possibly in the reported production data. The contribution of t
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Senapati, Dulal. "Photodissociation Dynamics Of Mixed Halogenated Alkyl And Aryl Halides." Thesis, 2004. https://etd.iisc.ac.in/handle/2005/1221.

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Senapati, Dulal. "Photodissociation Dynamics Of Mixed Halogenated Alkyl And Aryl Halides." Thesis, 2004. http://etd.iisc.ernet.in/handle/2005/1221.

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Book chapters on the topic "Halogenated alkyls"

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"Halogenated Alkyl Complexes." In Vibrational Spectra of Organometallics. John Wiley & Sons Ltd, 2018. http://dx.doi.org/10.1002/9781119404675.ch15.

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Hirsch, A., and O. Vostrowsky. "Dehydrohalogenation of Halogenated Polyynic Precursors." In Polyynes, Arynes, Enynes, and Alkynes. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-043-00054.

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Taber, Douglass. "Advances in Alkene and Alkyne Metathesis." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0026.

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As alkene metathesis is extended to more and more challenging substrates, improved catalysts and solvents are required. Robert H. Grubbs of Caltech developed (Organic Lett. 2008, 10, 441) the diisopropyl complex 1, that efficiently formed the trisubstituted alkene 6 by cross metathesis of 4 with 5. Hervé Clavier and Stephen P. Nolan of ICIQ, Tarragona, and Marc Mauduit of ENSC Rennes found (J. Org. Chem. 2008, 73, 4225) that after cyclization of 7 with the complex 2b, simple filtration of the reaction mixture through silica gel delivered the product 8 containing only 5.5 ppm Ru. The merit of CH2
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Journal articles
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