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Relevant bibliographies by topics / Ω-bis(organic acids)

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Journal articles

Academic literature on the topic 'Ω-bis(organic acids)'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Ω-bis(organic acids)"

1

Chande, Madhukar S., Pravin A. Barve, Rahul R. Khanwelkar, Shailesh S. Athalye, and Deepak S. Venkataraman. "Regioselective synthesis of novel N-aminotriazolophanes." Canadian Journal of Chemistry 85, no. 1 (2007): 21–28. http://dx.doi.org/10.1139/v06-181.

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Bis-[4-amino-1,2,4-triazoles] were prepared by fusion of dibasic acids and thiosemicarbazide by condensation of aromatic acid hydrazides with hydrazine hydrate and carbon disulphide. Regioselective alkylation of these bis-[4-amino-1,2,4-triazoles] with 1,ω-dihaloalkanes in the presence of potassium hydroxide in aqueous methanol afforded novel N-aminotriazolophanes. The stereochemistry and antibacterial activity of these N-aminotriazolophanes were studied. In the case of the triazolophanes 5h, 8d, and 8f, both N-NH2 groups were observed trans to each other, whereas for case of other triazolopha

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2

Nasser, S. A. M. Khalil, та M. Mohamed Noha. "Antimicrobial Evaluation and Structure-Activity Relationship (SAR) of Some 1,ω-bis[4-Carboxy/Methoxycarbonyl/(Hydrazinecarbonyl) /Phenoxy]Alkanes". Annual Research & Review in Biology 13, № 4 (2017): 1–10. https://doi.org/10.9734/ARRB/2017/33990.

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A series of some 1,ω-bis[4-carboxy/methoxycarbonyl/(hydrazinecarbonyl)/phenoxy]alkanes were synthesized and evaluated for their antimicrobial activity against different strains of Gram-positive bacteria (<em>Bacillus subtilis </em>RCMB 101-001 and<em> Staphylococcus aureus </em>RCMB 106-001 (1)), Gram-negative bacteria (<em>Pseudomonas aeruginosa </em>RCMB 102-002 and <em>Escherichia coli</em> RCMB 103-001), yeast (<em>Candida albicans </em>RCMB 005003) and fungi (<em>Aspergillus fumigates </em>RCMB 002008 (1), <em>Penicillium italicum</em> RCMB 001018 (1) and <em>Syncephalastrum racemosum</em

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3

Han, Ying, Li-Ming Xu, Cui-Yun Nie, Shuo Jiang, Jing Sun, and Chao-Guo Yan. "Synthesis of diamido-bridged bis-pillar[5]arenes and tris-pillar[5]arenes for construction of unique [1]rotaxanes and bis-[1]rotaxanes." Beilstein Journal of Organic Chemistry 14 (July 4, 2018): 1660–67. http://dx.doi.org/10.3762/bjoc.14.142.

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The pillar[5]arene mono- and di(oxyalkoxy)benzoic acids were successfully prepared in high yields by sequential alkylation of ω-bromoalkoxy-substituted pillar[5]arenes with methyl or ethyl p-hydroxybenzoate followed by a hydrolytic reaction under basic conditions. Under catalysis of HOBt/EDCl, the amidation reaction of pillar[5]arene mono(oxybutoxy)benzoic acid with monoamido-functionalized pillar[5]arenes afforded diamido-bridged bis-pillar[5]arenes. 1H NMR and 2D NOESY spectra clearly indicated that [1]rotaxanes were formed by insertion of longer diaminoalkylene unit into the cavity of one p

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4

Osman, Uwaisulqarni M., Sharmili Silvarajoo, Muhamad Fairus Noor Hassim, Suhana Arshad, Ainizatul Husna Anizaim, and Fazira Ilyana Abdul Razak. "Synthesis, X-Ray Structure, Hirshfeld Surface Analysis, DFT Calculations, and Molecular Docking Studies of Nickel(II) Complex with Thiosemicarbazone Derivative." Bioinorganic Chemistry and Applications 2021 (May 26, 2021): 1–11. http://dx.doi.org/10.1155/2021/5536902.

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This article presents both experimental and computational study of a new Ni(II) complex, namely, bis{2-(2-trifluoromethylbenzylidene)hydrazine-1-carbothioamido-κ2N2, S}nickel(II) (abbreviate as NiL2). The complex was synthesized and well characterized using various spectroscopic methods. The single X-ray crystallographic study revealed a distorted square planar geometry around Ni(II) metal ion centre in which the angles deviated from ideal 90° with a maximum value of 6.57° occupied by nitrogen and sulphur donor atoms. The theoretical bond lengths and angles for the NiL2 complex were obtained b

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5

Mourtas, Spyridon, Georgios Kourmoulakis, Stavros Kremezis, Pavlos Klepetsanis та Sophia G. Antimisiaris. "Synthesis of α,ω-bis-Mercaptoacyl Poly(alkyl oxide)s and Development of Thioether Cross-Linked Liposome Scaffolds for Sustained Release of Drugs". Molecules 29, № 6 (2024): 1312. http://dx.doi.org/10.3390/molecules29061312.

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With the aim to develop novel scaffolds for the sustained release of drugs, we initially developed an easy approach for the synthesis of α,ω-homobifunctional mercaptoacyl poly(alkyl oxide)s. This was based on the esterification of the terminal hydroxyl groups of poly(alkyl oxide)s with suitably S-4-methoxytrityl (Mmt)-protected mercapto acids, followed by the removal of the acid labile S-Mmt group. This method allowed for the efficient synthesis of the title compounds in high yield and purity, which were further used in the development of a thioether cross-linked liposome scaffold, by thia–Mic

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6

Andrzejewska, Weronika, Michalina Wilkowska, Andrzej Skrzypczak, and Maciej Kozak. "Ammonium Gemini Surfactants Form Complexes with Model Oligomers of siRNA and dsDNA." International Journal of Molecular Sciences 20, no. 22 (2019): 5546. http://dx.doi.org/10.3390/ijms20225546.

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Dimeric cationic surfactants (gemini-type) are a group of amphiphilic compounds with potential use in gene therapy as effective carriers for nucleic acid transfection (i.e., siRNA, DNA, and plasmid DNA). Our studies have shown the formation of lipoplexes composed of alkanediyl-α,ω-bis[(oxymethyl)dimethyldodecylammonium] chlorides and selected 21-base-pair nucleic acid (dsDNA and siRNA) oligomers. To examine the structure and physicochemical properties of these systems, optical microscopy, circular dichroism spectroscopy (CD), small-angle X-ray scattering of synchrotron radiation (SR-SAXS), and

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7

Arabuli, Natia, George Tsitlanadze, Lamara Edilashvili та ін. "Heterochain polymers based on natural amino acids. Synthesis and enzymatic hydrolysis of regular poly(ester amide)s based on bis(L-phenylalanine) α,ω-alkylene diesters and adipic acid". Macromolecular Chemistry and Physics 195, № 6 (1994): 2279–89. http://dx.doi.org/10.1002/macp.1994.021950633.

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8

D’yakonov, Vladimir A., Ilgiz I. Islamov, Lilya U. Dzhemileva, Elina Kh Makarova, and Usein M. Dzhemilev. "Direct Synthesis of Polyaromatic Cyclophanes Containing Bis-Methylene-Interrupted Z-Double Bonds and Study of Their Antitumor Activity In Vitro." International Journal of Molecular Sciences 22, no. 16 (2021): 8787. http://dx.doi.org/10.3390/ijms22168787.

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An original synthetic route was developed for the preparation of previously unknown unsaturated polyaromatic macrolactones containing a 1Z,5Z-diene moiety in 48–71% yields and with >98% stereoselectivity. The method is based on intermolecular cyclocondensation of aromatic dicarboxylic acids with α,ω-alka-nZ,(n+4)Z-dienediols (1,12-dodeca-4Z,8Z-dienediol, 1,14-tetradeca-5Z,9Z-dienediol, 1,18-octadeca-7Z,11Z-dienediol) mediated by N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDC)/4-dimethylaminopyridine (DMAP). The unsaturated diols were prepared by successive homo-cyclomagne

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