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Journal articles on the topic 'Azidi'

Author: Grafiati

Published: 9 March 2023

Last updated: 31 July 2025

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1

Alaa Abdulzahra, Mohammed, Ruaa Wassim Adam, and Hanaa Kadtem Egzar. "New polytetrazole synthesis and adsorption surface investigation based on sulfadiazine grafted polyimine." Himia, Fizika ta Tehnologia Poverhni 15, no. 3 (2024): 420–28. http://dx.doi.org/10.15407/hftp15.03.420.

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The present work concentrates on synthesizing and adsorption surface investigation of polytetrazole polymer (P-T) created from polyimine (P-S) grafted with sulfadiazine drug. The prepared polymer is synthesized by mechanochemical polycondensation reaction between dialdehyde aromatic compound and diamine aromatic compound by applying appropriate polar solvent and glacial acetic acid at (78 °C) as dependent on the polymerization reaction. The synthetic route to prepare tetrazole polymer (P-T) consists off multi chemical reaction process, firstly the synthesis of polyimine backbone (P-S) (4-(((4'

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2

Dong, Z., KA Hellmund та SG Pyne. "Chiral Sulfur Compounds. XXI. Addition of Azide Ion to β-Aryl-α-phenylsulfinylacrylates". Australian Journal of Chemistry 46, № 9 (1993): 1431. http://dx.doi.org/10.1071/ch9931431.

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The reaction of methyl β-aryl-α- phenylsulfinylacrylates (1) with sodium azide /acetic acid gives triazoles (6) while the reaction of (1) with sodium azide /hydrochloric acid gives β-azido esters (7a,b). Reaction of (7a) with 1,8-diazabicyclo[5.4.0]undec-7-ene, and (7b) with triethylamine gave the corresponding triazoles (6a) and (6b), respectively. Thus the formation of triazoles from the reaction of acrylates with azide ion most likely involves Michael addition of azide ion followed by cyclization of an incipient β-azido α-anion.

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3

Zhao, Jiong-Peng, Cui Zhao, Wei-Chao Song, et al. "4-Substituent pyridine directed cobalt(ii) azides: solvothermal synthesis, structure, and magnetic properties." Dalton Transactions 44, no. 22 (2015): 10289–96. http://dx.doi.org/10.1039/c5dt00568j.

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Azido-bridged magnetic complexes: Different 4-substituent groups of pyridine co-ligands directed the linkages between azide and Co(ii) ions, to give three azide–Co(ii) complexes with different structures and magnetic properties.

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4

Forman, Grant S., Adrian Scaffidi та Robert V. Stick. "An Alternative Synthesis of Some Carbohydrate α-Amino Acids". Australian Journal of Chemistry 57, № 1 (2004): 25. http://dx.doi.org/10.1071/ch03214.

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Several carbohydrate ketones have been converted into their trichloromethyl-branched tertiary alcohols. A subsequent treatment of these alcohols under Corey–Link conditions (base, sodium azide, methanol) has given rise to α-azido esters, transformable into azido acids, amino esters, and amino acids. An amino ester and an azido acid have been coupled to form a dipeptide.

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5

Sari, Novita Indah Kartika, and Wahyu Indra Duwi Fanata. "RESPON KERAGAAN DAN PRODUKTIVITAS TANAMAN CABAI BESAR (Capsicum annuum L.) TERHADAP KONSENTRASI LARUTAN SODIUM AZIDA." Berkala Ilmiah Pertanian 5, no. 2 (2022): 88. http://dx.doi.org/10.19184/bip.v5i2.29199.

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ABSTRAK Cabai besar merupakan salah satu tanaman hortikultura yang memiliki nilai ekonomi yang cukup tinggi di Indonesia. Harga cabai besar, sering kali mengalami kenaikan terutama pada saat hari hari besar. Salah satu yang dapat dilakukan untuk meningkatkan produktivitas cabai besar yaitu dengan menghasilkan kultivar baru yang unggul. Hal yang dapat dilakukan untuk menghasilkan kultivar baru yaitu dapat menggunakan perlakuan mutasi. Perlakuan mutasi yang digunakan dalam penelitian ini yaitu mutasi kimia dengan menggunakan larutan Sodium Azida (NaN3). Perlakuan mutasi Sodium Azida (NaN3)

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6

Stamatatos, Theocharis C., and Eva Rentschler. "Organic chelate-free and azido-rich metal clusters and coordination polymers from the use of Me3SiN3: a new synthetic route to complexes with beautiful structures and diverse magnetic properties." Chemical Communications 55, no. 1 (2019): 11–26. http://dx.doi.org/10.1039/c8cc08854c.

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A new synthetic route to structurally novel and magnetically interesting 3d-metal azido clusters and coordination polymers is presented; the key reagent for the preparation of solely azido-bridged molecule-based species is the organic azide precursor Me<sub>3</sub>SiN<sub>3</sub>.

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7

Goher, Mohamed A. S., and Franz A. Mautner. "Preparation, Spectral and Structural Characterization of Two Polymeric 1:1 Mixed Ligand Complexes of Copper(II) Azide with 4-Methylquinoline and 2-Methylpyridine." Zeitschrift für Naturforschung B 46, no. 5 (1991): 687–92. http://dx.doi.org/10.1515/znb-1991-0522.

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Two 1:1 mixed ligand complexes of copper(II) azide with substituted quinoline and pyridine, namely catena di-μ(1,1)-azido-(4-methylquinoline)copper(II) (1) and catena di-μ(1,3)-azido-[di-μ(1,1)-azido-bis(2-methylpyridine)dicopper(II)] (2) have been prepared and characterized by X-ray crystallography.Crystal data: 1, C10H9N7Cu, space group P21/c, a = 577.8(2), b = 2202.3(5), c = 919.9(2) pm, β = 93.92(2)°, Ζ = 4, and R = 0.035 for 1293 observed MoKa data; 2, C6H7N7Cu, space group P21/a, a = 823.7(2), b = 1303.8(4), c = 895.3(3) pm, β = 112.23(2)°, Ζ = 4, and R = 0.022 for 2133 observed ΜοΚα dif

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8

Kapuściński, Szymon, Bindushree Anand, Paulina Bartos, Jose M. Garcia Fernandez, and Piotr Kaszyński. "Tethered Blatter Radical for Molecular Grafting: Synthesis of 6-Hydroxyhexyloxy, Hydroxymethyl, and Bis(hydroxymethyl) Derivatives and Their Functionalization." Molecules 27, no. 4 (2022): 1176. http://dx.doi.org/10.3390/molecules27041176.

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Synthetic access to 7-CF3-1,4-dihydrobenzo[e][1,2,4]triazin-4-yl radicals containing 4-(6-hydroxyhexyloxy)phenyl, 4-hydroxymethylphenyl or 3,5-bis(hydroxymethyl)phenyl groups at the C(3) position and their conversion to tosylates and phosphates are described. The tosylates were used to obtain disulfides and an azide with good yields. The Blatter radical containing the azido group underwent a copper(I)-catalyzed azide–alkyne cycloaddition with phenylacetylene under mild conditions, giving the [1,2,3]triazole product in 84% yield. This indicates the suitability of the azido derivative for grafti

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9

Resende, Diana I. S. P., Amalia M. Estévez, Andre M. Alker, Rainer E. Martin, and Hans Peter Wessel. "A carbohydrate-derived trifunctional scaffold for medicinal chemistry library synthesis." Mediterranean Journal of Chemistry 7, no. 2 (2018): 135–44. http://dx.doi.org/10.13171/mjc72/01809051415-wessel.

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For the generation of compound libraries for drug discovery a central scaffold containing three exit vectors with defined chirality was devised starting from commercially available tri-O-acetyl-glucal. Surprisingly, the reaction of a 4-O-mesylate with sodium azide did not lead to the expected 4-azido-4-deoxy derivative but to a 3-azido-3-deoxy regioisomer via intermediate epoxide formation. The absolute stereochemical configuration of the final tetrahydropyran building block was proven by X-ray crystallography. This scaffold endowed with a carboxylic acid, a secondary alcohol, and an azide fun

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10

Kumar, Rakesh, Leonard I. Wiebe, and Edward E. Knaus. "A mild and efficient methodology for the synthesis of 5-halogeno uracil nucleosides that occurs via a 5-halogeno-6-azido-5,6-dihydro intermediate." Canadian Journal of Chemistry 72, no. 9 (1994): 2005–10. http://dx.doi.org/10.1139/v94-256.

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A mild and efficient methodology for the synthesis of 5-halogeno (iodo, bromo, or chloro) uracil nucleosides has been developed. 5-Halo-2′-deoxyuridines 4a–c (84–95%), 5-halouridines 7a–c (45–95%), and 5-haloarabinouridines 8a–c (65–95%) were synthesized in good to excellent yields by the reaction of 2′-deoxyuridine (2), uridine (5), and arabinouridine (6), respectively, with iodine monochloride, or N-bromo (or chloro)succinimide, and sodium azide at 25–45 °C. These C-5 halogenation reactions proceed via a 5-halo-6-azido-5,6-dihydro intermediate (3), from which HN3 is eliminated, to yield the

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11

Al-Azemi, Talal F., and Mickey Vinodh. "External-stimulus-triggered conformational inversion of mechanically self-locked pseudo[1]catenane and gemini-catenanes based on A1/A2-alkyne–azide-difunctionalized pillar[5]arenes." RSC Advances 12, no. 3 (2022): 1797–806. http://dx.doi.org/10.1039/d1ra09043g.

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Mechanically self-locked molecules (MSMs) through the efficient intramolecular copper(i)-catalyzed alkyne–azide cycloaddition (CuAAC) of self-threaded A1/A2-azido-propargyl-difunctionalized pillar[5]arenes.

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12

Ge, Junying, Qiuping Ding, Man Yang, Tian He, and Yiyuan Peng. "Copper and manganese co-mediated cascade aza-Michael addition/cyclization and azidation of 1,3-enynes: regioselective synthesis of fully substituted azido pyrroles." Organic & Biomolecular Chemistry 18, no. 43 (2020): 8908–15. http://dx.doi.org/10.1039/d0ob01927e.

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13

Hema, Kuntrapakam, and Kana M. Sureshan. "Three-way competition in a topochemical reaction: permutative azide–alkyne cycloaddition reactions leading to a vast library of products in the crystal." CrystEngComm 20, no. 11 (2018): 1478–82. http://dx.doi.org/10.1039/c8ce00131f.

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14

Laus, Gerhard, Mirco E. Kostner, Volker Kahlenberg, and Herwig Schottenberger. "Synthesis and reactions of 2-azido-1,3-di(benzyloxy)imidazolium hexafluoridophosphate." Zeitschrift für Naturforschung B 71, no. 9 (2016): 997–1003. http://dx.doi.org/10.1515/znb-2016-0104.

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Abstract2-Azido-1,3-di(benzyloxy)imidazolium hexafluoridophosphate was obtained from the corresponding 2-bromo compound by reaction with sodium azide. Cycloaddition of the 2-azido compound with norbornene and norbornadiene gave the respective tricyclic aziridine and bicyclic azaoctadiene. Addition of triphenylphosphane yielded the phosphazide which upon heating eliminated dinitrogen to afford the phosphazene. The crystal structures of five compounds were determined by X-ray diffraction.

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15

Pathigoolla, Atchutarao, and Kana M. Sureshan. "The topochemical synthesis of triazole-linked homobasic DNA." Chemical Communications 52, no. 5 (2016): 886–88. http://dx.doi.org/10.1039/c5cc08834h.

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Triazolyl-DNA (<sup>TL</sup>DNA), DNA wherein phosphodiester units are replaced by triazole units, is of great interest. By adopting Topochemical Azide–Alkyne Cycloaddition (TAAC) reaction, we have synthesized homobasic <sup>TL</sup>DNA oligomers. 5′-ethynyl-3′-azido-2′,3′,5′-tri-deoxycytosine, which crystallized with proximal placement of azide and alkyne units of adjacent molecules, underwent TAAC reaction to <sup>TL</sup>DNA oligomers.

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16

Līpiņš, Dāgs Dāvis, Andris Jeminejs, Una Ušacka, Anatoly Mishnev, Māris Turks, and Irina Novosjolova. "Regioselective quinazoline C2 modifications through the azide–tetrazole tautomeric equilibrium." Beilstein Journal of Organic Chemistry 20 (March 28, 2024): 675–83. http://dx.doi.org/10.3762/bjoc.20.61.

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2-Chloro-4-sulfonylquinazolines undergo functional group swap when treated with an azide nucleophile: 1) the azide replaces the sulfonyl group at the C4 position; 2) the intrinsic azide–tetrazole tautomeric equilibrium directs the nucleofugal sulfinate from the first step to replace chloride at the C2 position. This transformation is effective with quinazolines bearing electron-rich substituents. Therefore, the title transformations are demonstrated on the 6,7-dimethoxyquinazoline core, which is present in pharmaceutically active substances. The methodology application is showcased by transfor

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17

Krist, Pavel, Marek Kuzma, István F. Pelyvás, Pavla Simerská та Vladimír Křen. "Synthesis of 4-Nitrophenyl 2-Acetamido-2-deoxy-β-D-mannopyranoside and 4-Nitrophenyl 2-Acetamido-2-deoxy-α-D-mannopyranoside". Collection of Czechoslovak Chemical Communications 68, № 4 (2003): 801–11. http://dx.doi.org/10.1135/cccc20030801.

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The title compounds were synthesized by the selective reduction of the azido group in 4-nitrophenyl 3,4,6-tri-O-acetyl-2-azido-2-deoxy-α-D-mannopyranoside (8) and 4-nitrophenyl 3,4,6-tri-O-acetyl-2-azido-2-deoxy-β-D-mannopyranoside (11), and by subsequent acetylation. Compound 8 was prepared by opening of the epoxide ring in methyl 2,3-anhydro-4,6-O-benzylidene-α-D-glucopyranoside (1) with sodium azide, followed by inversion of the configuration at C-3 in the resulting altropyranoside and glycosidation with 4-nitrophenol.

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18

Cherton, Jean-Claude, Paul-Louis Desbene, Marc Bazinet, Marc Lanson, Odile Convert, and Jean-Jacques Basselier. "Réactivité du nucléophile azoture vis à vis de cations hétérocycliques aromatiques. VI. Cas des triaryl-2,4,6 oxaziniums-1,3." Canadian Journal of Chemistry 63, no. 1 (1985): 86–94. http://dx.doi.org/10.1139/v85-015.

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Nucleophilic attack of sodium azide on 2,4,6-triaryl-1,3-oxazinium species gives high yields of β-tetrazolo-trans-benzalacetophenones from the corresponding 2-azido-1,3-oxazines. The rearrangement of the azido oxazines likely proceeds via tautomerism of the intermediate iminoazides. If the formation of the 2-azido-1,3-oxazines is under kinetic control, these results are a rare example of high regioselectivity in nucleophilic attack at the C2 carbon of 1,3-oxazinium species.The reaction behaviour of the 1,3-oxazinium/N3− system is discussed, together with results obtained from the 2,4,6-triphen

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19

Pan, Xiuwei, Hao Gao, Guodong Fu, Yun Gao, and Weian Zhang. "Synthesis, characterization and chondrocyte culture of polyhedral oligomeric silsesquioxane (POSS)-containing hybrid hydrogels." RSC Advances 6, no. 28 (2016): 23471–78. http://dx.doi.org/10.1039/c5ra27989e.

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Polyhedral oligomeric silsesquioxanes (POSS)-based hybrid hydrogels were successfully prepared via a fast azide-alkyne click reaction between octa-azido-functionalized POSS (OAPOSS) and alkyne-functionalized poly(ethylene glycol) (PEG).

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20

Su, Yaning, Li Li, Haibin Wang, Xiaochen Wang, and Zhiyuan Zhang. "All-in-One azides: empowered click reaction for in vivo labeling and imaging of biomolecules." Chemical Communications 52, no. 10 (2016): 2185–88. http://dx.doi.org/10.1039/c5cc08466k.

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We designed and synthesized All-in-One (AIO) reactive azide reagents for bioorthogonal reactions with highly efficient Cu(i) ligand moieties, an azido group, and functional tags for imaging or purification.

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21

Czernecki, Stanislas, and Ebtissam Ayadi. "Preparation of diversely protected 2-azido-2-deoxyglycopyranoses from glycals." Canadian Journal of Chemistry 73, no. 3 (1995): 343–50. http://dx.doi.org/10.1139/v95-046.

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A new and efficient preparation of diversely protected 2-azido-2-deoxyglycopyranosides from the corresponding glycals is described. The glycals are first transformed into protected phenyl 2-azido-2-deoxy-selenoglycopyranosides by azido-phenylselenylation. Two procedures were employed according to the protecting groups present: sodium azide and diphenyldiselenide in the presence of (diacetoxyiodo)benzene for peracetylated glycals (Procedure A) or trimethylsilyl azide and tetra-n-butylammonium fluoride in the presence of N-phenylselenophthalimide for perbenzylated glycals (Procedure B). A gluco–

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22

Hu, Qiong, Xianbao Deng, Jinming Kong, Yuanyuan Dong, Qianrui Liu, and Xueji Zhang. "Simple and fast electrochemical detection of sequence-specific DNA via click chemistry-mediated labeling of hairpin DNA probes with ethynylferrocene." Analyst 140, no. 12 (2015): 4154–61. http://dx.doi.org/10.1039/c5an00566c.

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In this work, the azido-containing hairpins were exploited as the capture probes; after hybridization, labeling of electroactive probes, ethynylferrocene, was conveniently and efficiently achieved via the Cu(i)-catalyzed azide–alkyne cycloaddition.

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23

Nasseri, Mohammad Ali, Seyyedeh Ameneh Alavi, Boshra Mahmoudi, and Milad Kazemnejadi. "A Facile Approach to Catalyst-Free Cyanation and Azidation of Organic Compounds and a One-Pot Preparation of 5-Substituted 1H-Tetrazoles by Using a Dimethyl Sulfoxide–Nitric Acid Combination." Synlett 30, no. 20 (2019): 2290–94. http://dx.doi.org/10.1055/s-0039-1690742.

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In this study, cyanations or azidations of imines were performed by using hydroxy(dimethyl)-λ4-sulfanecarbonitrile or azido(dimethyl)-λ4-sulfanol, respectively, prepared in situ by treatment of potassium cyanide or sodium azide with a dimethyl sulfoxide–nitric acid combination. Furthermore, a one-pot preparation of 5-substituted 1H-tetrazole derivatives was carried out by using this reagent combination in the presence of an aldehyde, hydroxylamine hydrochloride, and sodium azide under mild conditions.

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24

Yao, Kezi, Arnau Bertran, Jacques Morgan, et al. "A novel Pt(iv) mono azido mono triazolato complex evolves azidyl radicals following irradiation with visible light." Dalton Transactions 48, no. 19 (2019): 6416–20. http://dx.doi.org/10.1039/c9dt01156k.

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A novel Pt<sup>IV</sup> azido triazolato complex exists as an equilibrium between two species in d<sub>3</sub>-MeCN and evolves azide radicals (but not hydroxide radicals) when irradiated with visible light.

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25

Ooi, Jocelyn M. F., Jessica M. Fairhall, Benjamin Spangler, et al. "Development of a bioorthogonal fluorescence-based assay for assessing drug uptake and delivery in bacteria." RSC Advances 12, no. 25 (2022): 15631–42. http://dx.doi.org/10.1039/d2ra02272a.

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Bioorthogonal alkyne–azide and alkyne–tetrazine chemistries were used to assess drug uptake in bacteria. Azido-drug reacts with streptavidin bound alkyne-biotin within bacteria, the remaining unreacted alkyne is then quantified with a tetrazine-dye.

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26

Han, Hang, Bingbin Zhu, Xiaofan Du, Yu Zhu, Chuanming Yu, and Xinpeng Jiang. "Synthesis of 1-azido-3-heteroaryl bicyclo[1.1.1]pentanes via azidoheteroarylation of [1.1.1]propellane." Green Chemistry 23, no. 24 (2021): 10132–36. http://dx.doi.org/10.1039/d1gc03126k.

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A novel synthesis of 1-azido-3-heteroaryl bicyclo[1.1.1]pentanes has been achieved via azidoheteroarylation of [1.1.1]propellane under mild and metal-free conditions. It provides a highly efficient route to construct azide-containing BCPs.

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27

Chapyshev, S. V., and E. N. Ushakov. "Tandem deprotonation/azide–tetrazole tautomerization of 4,6-diazido-N-nitro-1,3,5-triazin-2-amine in dimethylsulfoxide solutions: a theoretical study." Physical Chemistry Chemical Physics 17, no. 26 (2015): 17296–300. http://dx.doi.org/10.1039/c5cp02096d.

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4,6-Diazido-N-nitro-1,3,5-triazin-2-amine in DMSO-d<sub>6</sub> undergoes tandem deprotonation/azide–tetrazole tautomerization to yield the anionic form of 5-azido-N-nitrotetrazolo[1,5-a][1,3,5]triazin-7-amine.

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28

Yang, Xiaoming, Xinyu Lin, Li Yang та Tonglai Zhang. "A novel method to synthesize stable nitrogen-rich polynitrobenzenes with π-stacking for high-energy-density energetic materials". Chemical Communications 54, № 73 (2018): 10296–99. http://dx.doi.org/10.1039/c8cc05413d.

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A larger multi-nitro, multi-azide and multi-oxidized furazan ring compound with π–π stacking is herein reported. The coupling reaction of a NN bond and an azido was an efficient method to synthesize benzotriazole.

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29

Abu-Youssef, Morsy A. M., Vratislav Langer, Assem Barakat, Matti Haukka, and Saied M. Soliman. "Molecular, Supramolecular Structures Combined with Hirshfeld and DFT Studies of Centrosymmetric M(II)-azido {M=Ni(II), Fe(II) or Zn(II)} Complexes of 4-Benzoylpyridine." Symmetry 13, no. 11 (2021): 2026. http://dx.doi.org/10.3390/sym13112026.

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The supramolecular structures of the three metal (II) azido complexes [Fe(4bzpy)4(N3)2]; 1, [Ni(4bzpy)4(N3)2]; 2 and [Zn(4bzpy)2(N3)2]n; 3 with 4-benzoylpyridine (4bzpy) were presented. All complexes contain hexa-coordinated divalent metal ions with a slightly distorted octahedral MN6 coordination sphere. Complexes 1 and 2 are monomeric with terminal azido groups while 3 is one-dimensional coordination polymer containing azido groups with μ(1,1) and μ(1,3) bridging modes of bonding. Hirshfeld analysis was used to quantitatively determine the different contacts affecting the molecular packing i

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30

Biewend, Michel, Philipp Michael, and Wolfgang H. Binder. "Detection of stress in polymers: mechanochemical activation of CuAAC click reactions in poly(urethane) networks." Soft Matter 16, no. 5 (2020): 1137–41. http://dx.doi.org/10.1039/c9sm02185j.

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We report on copper(i)-bis(N-heterocyclic carbene)s (NHC) for quantitative stress-sensing. This mechanophore is embedded within a polyurethane network, triggering a fluorogenic copper(i) azide alkyne cycloaddition (CuAAC) of 8-azido-2-naphtol and 3-hydroxy phenylacetylene.

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31

Velasco-Torrijos, Trinidad, та Róisín O’Flaherty. "Glycosylated α-Azido Amino Acids: Versatile Intermediates in the Synthesis of Neoglycoconjugates". Synlett 29, № 07 (2018): 904–7. http://dx.doi.org/10.1055/s-0036-1591902.

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A series of glycosylated α-azido amino acids was synthesized as precursors for neoglycoconjugates, a class of important biomolecules for drug discovery, and sensor development. The synthetically challenging 1,2-cis α-galactosylated species described herein were designed as building blocks in the synthesis of analogues of α-galactosyl ceramide, a potent immunomodulator. A benzyl-protected 1,2,3-triazolyl α-galactosyl-l-serine derivative was prepared using copper azide alkyne cycloaddition to showcase the potential of glycosylated α-azido amino acids in neoglycoconjugate design.

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32

Leclair, Alexandre, Rubén O. Torres-Ochoa, Qian Wang, and Jieping Zhu. "Iron-Catalysed Remote C(sp3)-H Azidation of O-Acyl Oximes and N -Acyloxy Imidates." CHIMIA International Journal for Chemistry 75, no. 4 (2021): 329–32. http://dx.doi.org/10.2533/chimia.2021.329.

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The azido group occupies an important position in modern organic chemistry, broadly used as amine surrogates and as anchors in bioconjugation. Despite their importance, examples of selective direct azidation of inert C(sp3)–H bonds remain limited and often require strong oxidative conditions. Herein, we highlight the use of O-acyl oximes and N-acyloxy imidates as directing groups for the selective iron-catalysed azidation of C(sp3)–H bond with trimethylsilyl azide, giving access to various γ-azido ketones and β-azido alcohols in moderate to excellent yields. The iron catalyst is assumed to pla

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33

Zullo, Valerio, Anna Iuliano, and Antonella Petri. "An Efficient and Practical Chemoenzymatic Route to (3R,3aR,6R,6aR)-Hexahydrofuro[3,2-b]furan-6-amino-3-ol (6-Aminoisomannide) from Renewable Sources." SynOpen 05, no. 03 (2021): 161–66. http://dx.doi.org/10.1055/a-1532-5825.

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AbstractThe synthesis of 6-aminoisomannide is easily achieved starting from the renewable, inexpensive, and commercially available isosorbide in 66% overall yield. A biocatalyzed highly regioselective acetylation of the 3-endo hydroxyl group of isosorbide was followed by the stereospecific interconversion of the 6-exo hydroxyl group into an azido group, through reaction with trifluoromethanesulfonic anhydride, followed by nucleophilic displacement of the triflate group by sodium azide. Finally, reduction of the azido group and deacetylation of the 3-hydroxy group were performed in one pot usin

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34

Buys, IE, LD Field, AV George, TW Hambley, and GR Purches. "Synthesis and Reactions of Azido Complexes of Ruthenium." Australian Journal of Chemistry 48, no. 1 (1995): 27. http://dx.doi.org/10.1071/ch9950027.

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Sodium azide reacts with RuH2 ( dmpe )2 (1a) ( dmpe = 1,2-bis( dimethylphosphino )ethane) in methanol solution to form RuH (N3)( dmpe )2 (2a), and reacts with RuCl2( depe )2 (3b) ( depe = 1,2-bis( diethylphosphino )ethane) to form the bis ( azide ) complex Ru (N3)2( depe )2 (4b). The crystal structures of Ru ( Cl )2( depe )2 (3b) and Ru (N3)2( depe )2 (4b) have been determined and indicate that the chloro groups in (3b) and the azido groups in (4b) are trans across the metal centre.

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35

Xu, Wan, Bing Hong Luo, Cai Rong Li, Jing Yang, and Chang Ren Zhou. "Synthesis and Characterization of Cholesterol-(1,2,3-triazole)-PEG via Click Chemistry." Advanced Materials Research 647 (January 2013): 499–503. http://dx.doi.org/10.4028/www.scientific.net/amr.647.499.

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Firstly, toluenesulfonyl cholesterol was synthesized by the reaction of cholesterol and p-toluenesulfonyl chloride, and then reacted with sodium azide to obtain azido-cholesterol. Secondly, propargyl was introduced into the terminal groups of polyethylene glycol (PEG) by the reaction of PEG and bromine propargyl. Lastly, cholesterol-(1,2,3-triazole)-PEG oligomer was prepared by the reaction of the azido-cholesterol and propargyl-PEG via click chemistry using CuSO4.5H2O as a catalyst. The structures of the products were characterized by the FTIR and 1H NMR analysis.

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Bock, Hans, та Ralph Dammel. "Gasphasen-Reaktionen, 58 [1, 2] β-Chlorethylazid: HCl-Eliminierung und Pyrolyse / Gas Phase Reactions, 58 [1, 2] β-Chloroethyl Azide: HCl Elimination and Pyrolysis". Zeitschrift für Naturforschung B 42, № 3 (1987): 301–7. http://dx.doi.org/10.1515/znb-1987-0309.

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The HCl elimination from β-chloroethyl azide (1-azido-2-chloroethane) over potassium tert. butanolate at 350 K in a low pressure flow system is optimized using PE spectroscopic real-time gas analysis. The highly explosive vinyl azide formed can be purified by cool-trapping the by-products. Its subsequent and virtually hazard-free pyrolysis yields 2H-azirine, which can be isolated at temperatures below 240 K.In contrast, the direct pyrolysis of β-chloroethyl azide requires temperatures above 710 K and results in a simultaneous split-off of both HCl and N2, yielding acetonitrile as the main ther

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37

Fajriyah, Nurul, Karno Karno, and Florentina Kusmiyati. "Induksi mutasi kedelai (Glycine max (L.) Merrill) dengan sodium azida pada tanah salin." Journal of Agro Complex 3, no. 1 (2019): 1. http://dx.doi.org/10.14710/joac.3.1.1-8.

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ABSTRACT Mutation is one of plant breeding ways to expand genetic diversity. The purpose of the research was to evaluate the effect of sodium azide mutagen on soybean variety Dering 1 at saline and non-saline soil. The research was arranged in Factorial Design based on Completely Randomized Design with 2 factors. The first factor was doses of Sodium Azide consisted of 0 mM, 0.05 mM, 0.1 mM, 0.2 mM, dan 0.4 mM, 0.8 mM, 1.6 mM, 3.2 mM, 6.4 mM, 12.8 mM, and 25.6 mM. The second factor was salinity levels consisted of 0 dS/m, 2 dS/m and 5 dS/m. Parameters measured were plant height, number of leave

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38

Kasza, Patryk, Przemysław W. Szafrański, Joanna Fedorowicz, et al. "Safirinium Fluorescent “Click” Molecular Probes: Synthesis, CuAAC Reactions, and Microscopic Imaging." Molecules 30, no. 3 (2025): 731. https://doi.org/10.3390/molecules30030731.

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Fluorescent labeling utilizing Cu(I)-catalyzed azide–alkyne cycloaddition reactions (CuAAC) is among the leading applications of the “click” chemistry strategy. Fluorescent probes for this approach can be constructed by linking an azide or alkyne group to a fluorophore, such as the recently developed Safirinium derivatives. These compounds are water-soluble, highly fluorescent heterocycles based on 1,2,4-triazolium, with significant potential for various labeling applications, although they have not yet been converted to azide or alkyne probes. Herein, we report the synthesis of Safirinium-bas

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39

Tsyganova, Anna V., Artem O. Petrov, Alexey V. Shastin, et al. "Synthesis, Antibacterial Activity, and Cytotoxicity of Azido-Propargyloxy 1,3,5-Triazine Derivatives and Hyperbranched Polymers." Chemistry 6, no. 1 (2023): 1–12. http://dx.doi.org/10.3390/chemistry6010001.

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A new method for the synthesis of azido-propargyloxy derivatives of 1,3,5-triazine has been developed utilizing the nitrosation of hydrazyno-1,3,5-triazines. New hydrazines (2-hydrazino-4,6-bis(propargyloxy)-1,3,5-triazine and 2,4-dihydrazino-6-propargyloxy-1,3,5-triazine) were synthesized and characterized via FTIR, NMR spectroscopy and elemental analysis. The hyperbranched polymers with azide (diazide monomer) and propargyloxy terminal groups were obtained via the azide-alkyne polycycloaddition reaction of diazide and monoazide AB2-type monomers. The antibacterial activity against Escherichi

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40

Ihmood Kh. Juber. "Synthesis and Characterization of 1,2,3- Triazole Derivatives from D-Mannitol." Tikrit Journal of Pure Science 22, no. 9 (2023): 58–68. http://dx.doi.org/10.25130/tjps.v22i9.876.

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This research included the use of azido D-Mannitol (3) to synthesize 1,2,3 triazole derivatives. Azido D – Mannitol (3) itself used as an intermediate which was prepared from reaction of 1, 2:5, 6-Di-o-isopropylidene-3,4-di-p-tosyl-D-Mannitol (2) with sodium azide. The prepared compound (3) was allowed to react with alkenes for the formation of corresponding 1,2,3 triazole (4a-e ). The structures of some prepared compounds were confirmed by physical properties and spectroscopic methods FT-IR , 1H-NMR , 13C-NMR and Mass spectra in addition to use TLC.

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41

Taher, Thuraya A., Waleed K. Mahdi, and Falih H. Musa. "Synthesis and Characterization of some Metal Complexes with (3Z ,5Z, 8Z)-2-azido-8-[azido(3Z,5Z)-2-azido-2,6bis(azidocarbonyl)-8,9-dihydro-2H-1,7-dioxa-3,4,5triazonine-9-yl]methyl]-9-[(1-azido-1-hydroxy)methyl]-2H1,7-dioxa-3,4,5-triazonine – 2,6 – dica." Ibn AL- Haitham Journal For Pure and Applied Science 30, no. 3 (2017): 77. http://dx.doi.org/10.30526/30.3.1604.

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The reaction of LAs-Cl8 : [ (2,2- (1-(3,4-bis(carboxylicdichloromethoxy)-5-oxo-2,5dihydrofuran-2-yl)ethane – 1,2-diyl)bis(2,2-dichloroacetic acid)]with sodium azide in ethanol with drops of distilled water has been investigated . The new product L-AZ :(3Z ,5Z,8Z)-2azido-8-[azido(3Z,5Z)-2-azido-2,6-bis(azidocarbonyl)-8,9-dihydro-2H-1,7-dioxa-3,4,5triazonine-9-yl]methyl]-9-[(1-azido-1-hydroxy)methyl]-2H-1,7-dioxa-3,4,5-triazonine – 2,6 – dicarbonylazide was isolated and characterized by elemental analysis (C.H.N) , 1H-NMR , Mass spectrum and Fourier transform infrared spectrophotometer (FT-IR) .

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42

Abdullayeva, A. A., N. E. Ahmadova, B. M. Babazade, et al. "Synthesis of new 2,5-diaryl 4-azido-derivatives of 2H-1,2,3-triazoles." UNEC journal of engineering and applied sciences 4, no. 1 (2024): 76–82. http://dx.doi.org/10.61640/ujeas.2024.0509.

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4-azido-2 H- 1,2,3-triazoles were synthesized by reaction of dichlorodiazadienes (which were synthesized from nitrobenzaldehyde ) with NaN3. It was established that during the reaction, unstable bis-azides are formed as a result of the replacement of geminal chlorine atoms at the double bond with azide anion. Then, the corresponding 1,2,3-triazoles were obtained as a result of elimination of nitrogen and intramolecular cyclization reaction. This method can be considered a highly effective method of synthesis for obtaining biologically active 4-azido-2H-1,2,3-triazoles. The structure of the syn

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43

Uroosa Aslam, Uroosa Aslam, Imran Ali Hashmi Imran Ali Hashmi, Muhammad Naveed Javed Muhammad Naveed Javed, Shoaib Muhammad Shoaib Muhammad, Muhammad Nabeel Muhammad Nabeel, and Ahmed Bari and Firdous Imran Al Ahmed Bari and Firdous Imran Al. "Chromatography Free Synthesis of Reversed N-Triazole Nucleosides Starting from D-Galactopyranose using 1,3-Dipolar Cycloaddition Reactions." Journal of the chemical society of pakistan 46, no. 2 (2024): 185. http://dx.doi.org/10.52568/001436/jcsp/46.02.2024.

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A chromatography free, four-step strategy has been developed to synthesize reversed N- nucleosides (4A-D) starting from -D-galactopyranose. The triaozle moiety served as heterocyclic part of nucleoside was created via 1,3 dipolar cycloaddition reaction between sugar azide (1,2:3,4-di-O-isopropylidene-6-deoxy-6-azido- -Dgalactopyranoside, 3) and terminal alkyne. Sugar azide 3 was obtained from 1,2:3,4-di-O-isopropylidene-6-tosyl- -Dgalactopyranoside (2). Purification of products was carried out through solvent-solvent extraction and/or crystallization techniques. This is an example of click

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44

Bhatt, Suchitra, and Sandip K. Nayak. "Anhydrous Titanium(III) chloride as a New Lewis-Acid Catalyst for Ring Opening of Epoxides with Aromatic Amines." Natural Product Communications 2, no. 2 (2007): 1934578X0700200. http://dx.doi.org/10.1177/1934578x0700200217.

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Anhydrous titanium(III) chloride was found to be a simple and efficient Lewis acid catalyst for ring opening of epoxides at ambient temperature. The reaction proceeded smoothly with anilines as well as azide ion as nucleophiles to give the corresponding β-amino alcohols and β-azido alcohols in moderate to good yields.

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45

Dyall, LK, and JA Ferguson. "Pyrolysis of Aryl Azides. XI. Enhanced Neighboring Group Effects of Carbonyl in a Locked Conformation." Australian Journal of Chemistry 45, no. 12 (1992): 1991. http://dx.doi.org/10.1071/ch9921991.

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Rates of pyrolysis in nitrobenzene solution have been measured for 1-azido-9H-fluoren-9- one, 1-azido-9H-xanthen-9-one, 1-azidoacridin-9(10H)-one and 1-azidoanthracene-9,1O-dione; relative to azidobenzene at 120� these were respectively 5.68, 1750, 5090 and 18400. The lack of neighbouring group participation for the first azide is related to the large distance between carbonyl oxygen and the inner azido nitrogen atom, and the data argue against a published proposal that the transition state is stabilized by electrostatic attraction. In the remaining azides, the 'locked conformation' leads to m

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46

Kore, Nitin, and Pavel Pazdera. "New Stable Cu(I) Catalyst Supported on Weakly Acidic Polyacrylate Resin for “Click” Chemistry: Synthesis of 1,2,3-Triazole and Novel Synthesis of 1,2,3-Triazol-5-amine." Current Organic Synthesis 15, no. 4 (2018): 552–65. http://dx.doi.org/10.2174/1570179415666180110152642.

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Aim and Objective: The aim of our work is to demonstrate catalytic application of our previously reported simple Cu(I) ion supported on weakly acidic polyacrylate resin for Azide-Alkyne cycloaddition (CuAAC), Azide-Nitrile cycloaddition and in synthesis of 1-azido-4-methoxybenzene. Material and Method: To investigate the catalytic ability of title Cu(I) catalyst we performed the reaction of different aryl azide with a broader spectrum of different terminal alkyne and nitrile compounds. Results: The title supported Cu(I) catalyzes cycloaddition reactions of aryl azide with aliphatic, aromatic,

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47

Veinot, Alex J., Amber D. Blair, and Jason D. Masuda. "Crystal structure of 2-azido-1,3-bis(2,6-diisopropylphenyl)-1,3,2-diazaphospholidine." Acta Crystallographica Section E Crystallographic Communications 73, no. 6 (2017): 905–7. http://dx.doi.org/10.1107/s2056989017007642.

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The title compound, C26H38N5P, was synthesized by reacting 2-chloro-1,3-bis(2,6-diisopropylphenyl)-1,3,2-diazaphospholidine with sodium azide and a catalytic amount of lithium chloride in tetrahydrofuran. The title compound is the first structurally characterized 2-azido-1,3,2-diazaphospholidine and exhibits a P atom in a trigonal pyramidal geometry. The azide P—N bond length of 1.8547 (16) Å is significantly longer than the P—N separations for the chelating diamine [P—N = 1.6680 (15) and 1.6684 (14) Å]. The sterically hindered 2,6-diisopropylphenyl groups twist away from the central heterocyc

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48

Liang, Xiao-Qin, Jin-Jun Zhou, Yan Zheng, and Feng Ma. "Theoretical Studies on the Mechanism of the Azido-Tetrazole of Azido-s-triazine." Natural Product Communications 10, no. 2 (2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000213.

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The B3LYP/aug-cc-pvDZ level of theory has been applied to the study of the molecular structures, electronic structures and the azido-tetrazole isomerization of 1-azido-s-triazine, 1,3-diazido-s-triazine and 1,3,5-triazido-s-triazine. NBO analysis was applied to investigate the atomic natural charge and stabilization interaction energies among molecules. The results showed that the reaction initially proceeds through the loss of the linearity of the azido group and the approaching of the terminal nitrogen atom of the azide group to the nitrogen atom of the ring. This is followed by an attack of

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49

Nakano, Shun, Akihito Hashidzume, and Takahiro Sato. "Quarternization of 3-azido-1-propyne oligomers obtained by copper(I)-catalyzed azide–alkyne cycloaddition polymerization." Beilstein Journal of Organic Chemistry 11 (June 18, 2015): 1037–42. http://dx.doi.org/10.3762/bjoc.11.116.

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3-Azido-1-propyne oligomer (oligoAP) samples, prepared by copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) polymerization, were quarternized quantitatively with methyl iodide in sulfolane at 60 °C to obtain soluble oligomers. The conformation of the quarternized oligoAP in dilute DMSO-d 6 solution was examined by pulse-field-gradient spin-echo NMR based on the touched bead model.

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50

Protiva, Jiří, Thi Thu Huong Nguyen, Jiří Urban та Eva Klinotová. "Reactions of 21-Acetoxy-16α,17α-epoxypregn-4-ene-3,20-dione with Nitrogen-Containing Nucleophilic Agents". Collection of Czechoslovak Chemical Communications 62, № 7 (1997): 1095–104. http://dx.doi.org/10.1135/cccc19971095.

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21-Acetoxy-16α,17α-epoxypregn-4-ene-3,20-dione (1) enters a reaction with acetonitrile catalyzed by perchloric acid, giving unusual products with the furostane skeleton. In contrast to analogous reactions, the reaction with sodium azide results in the azido derivative possessing the non-rearranged ring D. The 1H NMR, 13C NMR, and mass spectra are discussed.

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