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Journal articles on the topic 'Quaternary Azides'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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1

Vikulina, E. L., E. E. Romashin, D. I. Fedorov, I. K. Kukushkin, A. M. Pyzhov, and P. P. Purygin. "METHOD OF REGENERATION OF AZIDE ION." Vestnik of Samara University. Natural Science Series 20, no. 7 (2017): 163–67. http://dx.doi.org/10.18287/2541-7525-2014-20-7-163-167.

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In this article the results of research devoted to the development of methods of disposal and regeneration of azide ion contained in the liquid wastes are stated. As a rule, all existing methods of disposal of azide ion in the liquid wastes based on its destruction, which is not only economically impractical because it is irretrievably lost, but also dangerous, as this forms an extremely explosive and toxic hydrazoic acid, which signiﬁcantly increases the risk of the process of disposal of liquid wastes. Researches carried out by the authors allowed for the ﬁrst time to suggest an eﬀective met

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2

Ye, Xueqian, Yongkai Pan та Xiaoyu Yang. "Direct enantioselective Mannich reactions of α-azido cyclic ketones: asymmetric construction of chiral azides possessing an α-quaternary stereocenter". Chemical Communications 56, № 1 (2020): 98–101. http://dx.doi.org/10.1039/c9cc08000g.

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Herein, we report the asymmetric synthesis of chiral azides possessing an α-quaternary stereocenter via chiral phosphoric acid catalysed direct enantioselective Mannich reactions of α-azido cyclic ketones with aldimines.

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3

Dhineshkumar, Jayaraman, Prasanjit Samaddar та Kandikere Ramaiah Prabhu. "A copper catalyzed azidation and peroxidation of β-naphthols via an oxidative dearomatization strategy". Chemical Communications 52, № 74 (2016): 11084–87. http://dx.doi.org/10.1039/c6cc04894c.

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4

Du, Jianguo, Gang Xu, Huikun Lin, Guangwei Wang, Minli Tao, and Wenqin Zhang. "Highly efficient reduction of carbonyls, azides, and benzyl halides by NaBH4 in water catalyzed by PANF-immobilized quaternary ammonium salts." Green Chemistry 18, no. 9 (2016): 2726–35. http://dx.doi.org/10.1039/c5gc02621k.

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Highly efficient, easily recyclable and reusable polyacrylonitrile fiber-supported quaternary ammonium salts for the reduction of aldehydes, ketones, azides, and benzyl halides in water using NaBH<sub>4</sub> as the reducing reagent.

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5

Destro, Dario, Sandra Sanchez, Mauro Cortigiani, and Mauro F. A. Adamo. "Reaction of azides and enolisable aldehydes under the catalysis of organic bases and Cinchona based quaternary ammonium salts." Organic & Biomolecular Chemistry 15, no. 24 (2017): 5227–35. http://dx.doi.org/10.1039/c7ob00799j.

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6

Wu, Shu-Wei, Jia-Li Liu та Feng Liu. "cis-Specific cyanofluorination of vinyl azides enabled by electron-donor–acceptor complexes: synthesis of α-azido-β-fluoronitriles". Chemical Communications 53, № 91 (2017): 12321–24. http://dx.doi.org/10.1039/c7cc07165e.

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The reaction protocol is operationally simple and conducted under an aerobic atmosphere, allowing highly functionalized α-azido-β-fluoronitriles bearing a quaternary carbon to be furnished, that are difficult to access by existing methods.

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7

Brittain, William D. G., Benjamin R. Buckley, and John S. Fossey. "Kinetic resolution of alkyne-substituted quaternary oxindoles via copper catalysed azide–alkyne cycloadditions." Chemical Communications 51, no. 97 (2015): 17217–20. http://dx.doi.org/10.1039/c5cc04886a.

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8

Couture, Guillaume, Vincent Ladmiral, and Bruno Améduri. "Methods to prepare quaternary ammonium groups-containing alternating poly(chlorotrifluoroethylene-alt-vinyl ether) copolymers." RSC Advances 5, no. 14 (2015): 10243–53. http://dx.doi.org/10.1039/c4ra09238d.

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Quaternary ammonium groups-containing alternating poly(chlorotrifluoroethylene-alt-vinyl ether) copolymers were synthesized using post-polymerization functionalization methods such as azide–alkyne cycloaddition and cyclocarbonate–amine reaction.

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9

Zhou, Feng, Chen Tan, Jing Tang, et al. "Asymmetric Copper(I)-Catalyzed Azide–Alkyne Cycloaddition to Quaternary Oxindoles." Journal of the American Chemical Society 135, no. 30 (2013): 10994–97. http://dx.doi.org/10.1021/ja4066656.

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10

Schneider, Christoph. "ChemInform Abstract: Quaternary Ammonium Salts Catalyzed Azidolysis of Epoxides with Trimethylsilyl Azide." ChemInform 32, no. 12 (2001): no. http://dx.doi.org/10.1002/chin.200112063.

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11

Zhou, Feng, Chen Tan, Jing Tang, et al. "ChemInform Abstract: Asymmetric Copper(I)-Catalyzed Azide-Alkyne Cycloaddition to Quaternary Oxindoles." ChemInform 45, no. 3 (2014): no. http://dx.doi.org/10.1002/chin.201403147.

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12

Godard, Jérémy, Dáire Gibbons, Stéphanie Leroy-Lhez, et al. "Development of Phenalenone-Triazolium Salt Derivatives for aPDT: Synthesis and Antibacterial Screening." Antibiotics 10, no. 6 (2021): 626. http://dx.doi.org/10.3390/antibiotics10060626.

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The increasing number of hospital-acquired infections demand the development of innovative antimicrobial treatments. Antimicrobial photodynamic therapy (aPDT) is a versatile technique which relies on the production of reactive oxygen species (ROS) generated by light-irradiated photosensitizers (PS) in the presence of oxygen (O2). 1H-Phenalen-1-one is a very efficient photosensitizer known for its high singlet oxygen quantum yield and its antimicrobial potential in aPDT when covalently bound to quaternary ammonium groups. Triazolium salts are stable aromatic quaternary ammonium salts that recen

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13

Endoma-Arias, Mary, Helen Dela Paz, and Tomas Hudlicky. "Chemoenzymatic Total Synthesis of (+)-10-Keto-Oxycodone from Phenethyl Acetate." Molecules 24, no. 19 (2019): 3477. http://dx.doi.org/10.3390/molecules24193477.

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The total synthesis of (+)-10-keto-oxycodone was attained from phenethyl acetate in a stereoselective manner. Absolute stereochemistry was established via enzymatic dihydroxylation of phenethyl acetate with the recombinant strain JM109 (pDTG601A) that furnished the corresponding cis-cyclohexadienediol whose configuration corresponds to the absolute stereochemistry of the ring C of (+)-10-keto-oxycodone. Intramolecular Heck reaction was utilized to establish the quaternary carbon at C-13, along with the dibenzodihydrofuran functionality. The C-14 hydroxyl and C-10 ketone were installed via SmI2

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14

Brittain, William D. G., Benjamin R. Buckley, and John S. Fossey. "ChemInform Abstract: Kinetic Resolution of Alkyne-Substituted Quaternary Oxindoles via Copper Catalyzed Azide-Alkyne Cycloadditions." ChemInform 47, no. 13 (2016): no. http://dx.doi.org/10.1002/chin.201613026.

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15

Li, Lingdong, Fengxiang Zhang, Fangyuan Gai, et al. "Novel N-chloramine precursors for antimicrobial application: synthesis and facile covalent immobilization on polyurethane surface based on perfluorophenyl azide (PFPA) chemistry." Canadian Journal of Chemistry 96, no. 10 (2018): 939–48. http://dx.doi.org/10.1139/cjc-2018-0156.

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To control the pathogen cross contaminations on medical material surface, there is a pressing need to develop antimicrobial materials with highly efficacious surface biocidal activity. In this work, N-chloramine precursors containing a quaternary ammonium unit and perfluorophenyl azide unit were synthesized and covalently immobilized on inert polyurethane (PU) film upon UV light irradiation. The surface modification was confirmed by contact angle, Fourier transform infrared (ATR FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and atomic force microscopy (AFM) analyses. After bleach

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16

Kalelkar, Pranav P., Zhishuai Geng, M. G. Finn, and David M. Collard. "Azide-Substituted Polylactide: A Biodegradable Substrate for Antimicrobial Materials via Click Chemistry Attachment of Quaternary Ammonium Groups." Biomacromolecules 20, no. 9 (2019): 3366–74. http://dx.doi.org/10.1021/acs.biomac.9b00504.

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17

Patel, Alpesh Ramanlal, Mohan M. Bhadbhade, and Fei Liu. "Crystal structure of (4R,5S,6R)-6-azido-5-benzyloxy-3,3,4-trifluoroazepan-1-ium 2,2,2-trifluoroacetate from synchrotron data." Acta Crystallographica Section E Crystallographic Communications 71, no. 11 (2015): 1361–65. http://dx.doi.org/10.1107/s2056989015019416.

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The structure of the title compound, C15H16F6N4O3, was determined using synchrotron radiation on an extremely small crystal (0.015 × 0.01 × 0.01 mm). Although the diffraction was weak, leading to high residuals and a poor data-to-parameter ratio, the data allowed ready solution and refinement to reveal the entire structure. The solid-state structure is in accordance with the absolute configuration assigned based on that of the known starting material. The compound comprises a highly substituted seven-membered N-heterocyclic cation and a trifluoromethanesulfonate counter-anion. The title compou

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18

Grover, Ashok K., Sue E. Samson, Sarah Robinson, and Chiu Yin Kwan. "Effects of peroxynitrite on sarcoplasmic reticulum Ca2+ pump in pig coronary artery smooth muscle." American Journal of Physiology-Cell Physiology 284, no. 2 (2003): C294—C301. http://dx.doi.org/10.1152/ajpcell.00297.2002.

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Peroxynitrite generated in arteries from superoxide and NO may damage Ca2+ pumps. Here, we report the effects of peroxynitrite on ATP-dependent azide-insensitive uptake of Ca2+ into pig coronary artery vesicular membrane fractions F2 [enriched in plasma membrane (PM)] and F3 [enriched in sarcoplasmic reticulum (SR)]. Membranes were pretreated with peroxynitrite and then with DTT to quench this agent. This pretreatment inhibited Ca2+ uptake in a peroxynitrite concentration-dependent manner, but the effect was more severe in F3 than in F2. The inhibition was thus not overcome by excess DTT used

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19

Satoh, Tsuyoshi, Mizue Hirano, Akio Kuroiwa та Youhei Kaneko. "A synthesis of optically active α-quaternary α-amino acids and esters by assembling three components, ketones, (R)-chloromethyl p-tolyl sulfoxide, and sodium azide, via sulfinyloxiranes". Tetrahedron 62, № 39 (2006): 9268–79. http://dx.doi.org/10.1016/j.tet.2006.06.112.

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20

ALRUBAIE, IHSAN, AHMED THAMER SALIM, MOHAUMAN MOHAMMAD MAJEED, and ALI JABBAR RADHI. "Synthesis of novel polymer quaternary ammonium salt derived from glucose as a phase transfer catalyst." Nusantara Bioscience 14, no. 1 (2022). http://dx.doi.org/10.13057/nusbiosci/n140103.

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Abstract. Alrubaie I, Salim AT, Majeed MM, Radhi AJ. 2022. Synthesis of novel polymer quaternary ammonium salt derived from glucose as a phase transfer catalyst. Nusantara Bioscience 14: 25-33. Some new polymer containing quaternary ammonium salts based-carbohydrate starting from methyl-4,6-O-benzylidene-glucopyranoside have been prepared. The ammonium groups are connected to the glucose structure in various positions (2 and 3). Our synthesis used methyl-4,6-O-benzylidene-a-D-glucopyranoside through nucleophilic reagents to produce the main intermediates. The monomer glucose- quaternary ammoni

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21

"Quaternary Ammonium Salt Catalyzed Azidolysis of Epoxides with Trimethylsilyl Azide." Synlett 2000, no. 12 (2000): 1840–42. http://dx.doi.org/10.1055/s-2000-8687.

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22

Rapp, Magdalena, Klaudia Margas-Musielak, Patrycja Kaczmarek та ін. "Highly Diastereoselective Construction of Carbon– Heteroatom Quaternary Stereogenic Centers in the Synthesis of Analogs of Bioactive Compounds: From Monofluorinated Epoxyalkylphosphonates to α-Fluoro-, β-, or γ-Amino Alcohol Derivatives of Alkylphosphonates". Frontiers in Chemistry 9 (2 червня 2021). http://dx.doi.org/10.3389/fchem.2021.613633.

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The synthesis of the stable surrogates of an important amino acid (R)-4-amino-3-hydroxybutyric acid (GABOB) such as substituted hydroxy aminophosphonic acids bearing a quaternary stereogenic center is presented. Highly diastereoselective formations of fluorinated spiroepoxy alkylphosphonate or related tertiary carbon-containing oxiranes from β-keto phosphonates possessing methyl, phenyl, or cyclohexenyl substituents, are reported. Stereoselective acid-promoted epoxide opening by bromide or azide followed by reduction/protection afforded tertiary bromides or N-Boc derivatives of β-amino-γ-hydro

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23

Chu, Yen-Ho, Mou-Fu Cheng, and Yung-Hsin Chiang. "Combinatorial discovery of small-molecule 1,2,3-triazolium ionic liquids exhibiting lower critical solution temperature phase transition." Scientific Reports 10, no. 1 (2020). http://dx.doi.org/10.1038/s41598-020-75392-z.

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Abstract Both lower and upper critical solution temperature (LCST and UCST) systems are two typical phase behaviors of thermoresponsive materials with solvents, in which LCST is far less common than UCST. Recent studies on ionic liquids carrying LCST phase transitions have predominantly focused on quaternary ammonium- and phosphonium-based ionic salts. Based on the 1,2,3-triazole core structure assemblable by azide-alkyne cycloaddition click reaction, this work reports the combinatorial synthesis of 1,3,4-trialkylated 1,2,3-triazolium ionic liquids in three libraries with a total of 160 ionic

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24

Satoh, Tsuyoshi, Mizue Hirano, Akio Kuroiwa та Youhei Kaneko. "A Synthesis of Optically Active α-Quaternary α-Amino Acids and Esters by Assembling Three Components, Ketones, (R)-Chloromethyl p-Tolyl Sulfoxide, and Sodium Azide, via Sulfinyloxiranes." ChemInform 38, № 1 (2007). http://dx.doi.org/10.1002/chin.200701186.

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