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Kulikov, Alexander S.; Овчинников, И. В.; Molotov, S. I.; Махова, Нина Н.

doi:10.1023/a:1026073108494

Cited by 40 publications

(29 citation statements)

References 3 publications

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“…However, a combination of the furoxan ring with a tetrazole backbone may serve as an anionic component. Both synthetic routes to target energetic tetrazolylfuroxan salts involve the use of 4‐aminofuroxan‐3‐carboxamide ( 1 ) easily synthesized through a scalable procedure according to literature . Azidofuroxan 2 a and azofuroxan 2 b were synthesized on the basis of amino group transformations.…”

Section: Resultsmentioning

confidence: 99%

“…Both synthetic routes to target energetic tetrazolylfuroxan salts involvet he use of 4-aminofuroxan-3-carboxamide (1)e asily synthesized through as calable procedure according to literature. [19] Azidofuroxan 2a and azofuroxan 2b were synthesized on the basis of amino group transformations. A tandemd ehydration/[3+ +2] cycloaddition sequence afforded tetrazolylfuroxan ammonium salts 3a,b according to our recently developed procedure.…”

Section: Resultsmentioning

confidence: 99%

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Assembly of Tetrazolylfuroxan Organic Salts: Multipurpose Green Energetic Materials with High Enthalpies of Formation and Excellent Detonation Performance

Larin

Muravyev

Пивкина

et al. 2019

Chemistry A European J

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A series of highly energetic organic salts comprising a tetrazolylfuroxan anion, explosophoric azido or azo functionalities, and nitrogen‐rich cations were synthesized by simple, efficient, and scalable chemical routes. These energetic materials were fully characterized by IR and multinuclear NMR (1H, 13C, 14N, 15N) spectroscopy, elemental analysis, and differential scanning calorimetry (DSC). Additionally, the structure of an energetic salt consisting of an azidotetrazolylfuroxan anion and a 3,6,7‐triamino‐7H‐[1,2,4]triazolo[4,3‐b][1,2,4]triazolium cation was confirmed by single‐crystal X‐ray diffraction. The synthesized compounds exhibit good experimental densities (1.57–1.71 g cm−3), very high enthalpies of formation (818–1363 kJ mol−1), and, as a result, excellent detonation performance (detonation velocities 7.54–8.26 kms−1 and detonation pressures 23.4–29.3 GPa). Most of the synthesized energetic salts have moderate sensitivity toward impact and friction, which makes them promising candidates for a variety of energetic applications. At the same time, three compounds have impact sensitivity on the primary explosives level (1.5–2.7 J). These results along with high detonation parameters and high nitrogen contents (66.0–70.2 %) indicate that these three compounds may serve as potential environmentally friendly alternatives to lead‐based primary explosives.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Assembly of Tetrazolylfuroxan Organic Salts: Multipurpose Green Energetic Materials with High Enthalpies of Formation and Excellent Detonation Performance

Larin

Muravyev

Пивкина

et al. 2019

Chemistry A European J

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“…The compounds containing oxygen‐rich and nitrogen‐rich heterocycles have recently generated considerable interest and been used widely due to their high energy, good oxygen balances and low sensitivity 14–17. 4,4′‐dinitro‐3,3′‐diazenofuroxan (DDF)18 and 5‐[4‐nitro‐(1,2,5) oxadiazolyl]‐5 H ‐1,2,3‐triazolo‐[4,5‐ c ]1,2,5‐oxadiazole (NOTO)19 are good examples reported in the literatures on the explosive properties of high detonation velocity. Uric acid is a general raw material to synthesize heterocycles and first reported in the year 1961 20.…”

Section: Introductionmentioning

confidence: 99%

RNA Aptamers That Reversibly Bind Photoresponsive Azobenzene‐Containing Peptides

Hayashi

Hagihara

Nakatani

2008

Chemistry A European J

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Modulation of biological networks assembled by diverse interactions among biologically active molecules has provided a platform for innovative biotechnologies. Here, we report RNA aptamers that bind to a photoresponsive peptide (KRAzR; Lys-Arg-azobenzene-Arg) containing azobenzene chromophore, which can change its structure by photoirradiation. Aptamers were identified after 10 cycles of an in vitro selection procedure starting with a DNA library containing a 70 nt random region. Surface plasmon resonance (SPR) analysis demonstrated that interactions between aptamers and KRAzR were fully controlled by appropriate photoirradiation to the SPR sensor chip. Upon irradiation of 360 nm on the KRAzR-immobilized surface, the binding of each aptamer to the surface was significantly decreased. Subsequent photoirradiation of the same surface with 430 nm restored the aptamer binding to the surface. We also observed that direct photoirradiation of the aptamer-peptide complex on a gold surface actively promoted dissociation of the complex. Furthermore, a doped reselection method was applied to acquire structural and sequence information of aptamer 66. From a data analysis of the conserved region and the mutation frequency, we were able to select a plausible secondary structure among three candidates predicted by computational folding simulation.

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“…All solvents were purified and dried using standard methods prior to use. 4-Amino-3-phenylfuroxan 2a, 45 4-amino-3-methylfuroxan 2b, 46 4-amino-3-(methoxycarbonyl)furoxan 2c, 47 3-acetyl-4-aminofuroxan 2d 48 and diazo compounds 3a,b 41 were synthesized according literature. All other reagents were purchased from Acros Organics and used without further purification.…”

Section: Methodsmentioning

confidence: 99%

Lewis acid-catalyzed Wolff cyclocondensation in the synthesis of (1H-1,2,3-triazolyl)furoxans

Ферштат¹,

Radzhabov²,

Romanova³

et al. 2017

Arkivoc

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Untitled

Cited by 40 publications

References 3 publications

Assembly of Tetrazolylfuroxan Organic Salts: Multipurpose Green Energetic Materials with High Enthalpies of Formation and Excellent Detonation Performance

Assembly of Tetrazolylfuroxan Organic Salts: Multipurpose Green Energetic Materials with High Enthalpies of Formation and Excellent Detonation Performance

RNA Aptamers That Reversibly Bind Photoresponsive Azobenzene‐Containing Peptides

Lewis acid-catalyzed Wolff cyclocondensation in the synthesis of (1H-1,2,3-triazolyl)furoxans

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