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Journal articles on the topic 'Nitroso groups'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Wu, Yinuo, Ling-Jun Feng, Xiao Lu, Fuk Yee Kwong, and Hai-Bin Luo. "Palladium-catalyzed oxidative C–H bond acylation of N-nitrosoanilines with toluene derivatives: a traceless approach to synthesize N-alkyl-2-aminobenzophenones." Chem. Commun. 50, no. 97 (2014): 15352–54. http://dx.doi.org/10.1039/c4cc07440h.

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A palladium-catalyzed cross-coupling of N-nitroso-anilines and toluene derivatives for the direct synthesis of N-alkyl-2-aminobenzophenones is described. N-nitroso could act as the traceless directing groups.

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2

Cikotiene, Inga, Mantas Jonusis, and Virginija Jakubkiene. "The first example of the Fischer–Hepp type rearrangement in pyrimidines." Beilstein Journal of Organic Chemistry 9 (September 6, 2013): 1819–25. http://dx.doi.org/10.3762/bjoc.9.212.

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A N-nitroso moiety can be used for the activation of chloropyrimidines toward a nucleophilic substitution reaction with amines. The subsequent treatment of the obtained products with aq H2SO4 can lead to either N-denitrosation to obtain 4,6-pyrimidinediamines or to a Fischer–Hepp type rearrangement to obtain 5-nitroso-4,6-pyrimidinediamines. It was found that the outcome of the reaction strongly depends on the structure of the pyrimidines. Activation of the pyrimidine ring by three groups with a positive mesomeric effect is crucial for the intramolecular nitroso group migration.

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3

Wang, Zean, Hao Liu, Kang Zhou, Peifang Fu, Hancai Zeng, and Jianrong Qiu. "Effect of surface oxygen/nitrogen groups on hydrogen chloride removal using modified viscose-based activated carbon fibers." RSC Advances 5, no. 105 (2015): 86006–12. http://dx.doi.org/10.1039/c5ra11705d.

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4

Evans, Anthony S., Andrew D. Cohen, Zachary A. Gurard-Levin, et al. "Photogeneration and reactivity of acyl nitroso compounds." Canadian Journal of Chemistry 89, no. 2 (2011): 130–38. http://dx.doi.org/10.1139/v10-101.

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Acyl nitroso compounds have been generated by photolysis of several different classes of precursors including 9,10-dimethylanthracene adducts, nitrodiazo compounds, and 1,2,4-oxadiazole-4-oxides. Consideration of the nitronate-like resonance structure of nitrodiazo compounds led to an examination of the photochemistry of nitronates with α-leaving groups. Photolysis of such nitronates has been shown to generate an acyl nitroso species along with a carbene intermediate. Nanosecond time-resolved infrared (TRIR) spectroscopy has been used to detect photogenerated acyl nitroso compounds directly an

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5

Cameron, Mailer, Brian G. Gowenlock, Giuseppe Vasapollo, et al. "Solid State Spectroscopic Studies of Molybdenum Oxo Species with Coordinated ONR Groups." Journal of Chemical Research 23, no. 6 (1999): 354–55. http://dx.doi.org/10.1177/174751989902300605.

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A re-investigation of some complexes of molybdenum claimed to contain coordinated C-nitroso compounds has demonstrated that these solids are complex and that π-coordination of RNO cannot be the sole structural component.

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6

Didukh, S. L., V. N. Losev, A. N. Mukhina, N. G. Maksimov, and A. K. Trofimchuk. "Adsorption-photometric determination of iron using silica with nitroso-R salt and nitroso-N salt functional groups." Journal of Analytical Chemistry 72, no. 1 (2017): 47–53. http://dx.doi.org/10.1134/s1061934817010051.

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7

Trofimchuk, A. K., S. L. Didukh, A. N. Mukhina, and V. N. Losev. "Preconcentration And Determination Of Nickel Ions Using Silica With Functional Groups Of Sulfonic Derivatives Of Nitroso Naphthols." Methods and Objects of Chemical Analysis Vol. 14, No.1 (2019): 30–36. http://dx.doi.org/10.17721/moca.2019.30-36.

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Silica based adsorbents modified with polyhexamethylene guanidine and sulfonic derivatives of nitroso naphthols - nitroso-N salt (NNS) and nitroso-R salt (NRS), have been proposed for preconcentration and solid-phase photometric determination of Ni(II) in industrial solutions. Adsorbents with the surface concentration of the reagents of 1.5 and 3 μmol/g have been studied. Adsorbents with NNS functional groups quantitatively extract Ni(II) at pH 5.5-7.5, while with NRS functional groups – at pH 5.5-7.0, giving complex compounds with the composition Ni(II) : Reagent = 1 : 3. After Ni(II) adsorpt

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8

Shim, Jae Ho, Ji Yeon Lee, Hyeon Soo Kim, and Deok-Chan Ha. "Protonated Chiral 1,2-Diamine Organocatalysts for N-Selective Nitroso Aldol Reaction." Catalysts 12, no. 4 (2022): 435. http://dx.doi.org/10.3390/catal12040435.

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The introduction of nitrogen to carbonyl groups is considered both challenging and highly desirable by those who work in the field of organic synthesis. In this study, a diphenylethylenediamine-derived catalyst demonstrating N-selectivity was designed using a quantum calculation for the nitroso aldol reaction. The reductive monoalkylation of (R,R)-(+)-1,2-diphenylethylenediamine afforded an organic chiral diamine catalyst in high yield. The expected reaction mechanism for the nitroso aldol reaction was determined, and the product and solvent conditions were optimized through quantum calculatio

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9

Buca, Beatrice Rozalina, Liliana Mititelu-Tartau, Cristiana Filip, et al. "The Influence of Nitric Oxid Donors Nebivolol and S-Nitrosoglutathion of the Oxidatives Stress and Liver Function in Rats." Revista de Chimie 70, no. 4 (2019): 1360–63. http://dx.doi.org/10.37358/rc.19.4.7127.

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We aimed to investigate the influence of two nitric oxide donors on the oxidative stress and the liver function in rats with experimental-induced acute paw inflammation.The experiment was carried out on white male Wistar rats (200-250 g), randomly assigned into 4 groups of 5 animals each, which received the substances intraperitoneal, as follows: group 1 (Control) saline solution 0.1 ml/100 g body weight; group 2 (IND) indomethacin 150 mg/kg body weight (kbw); groups 3 (NEB) and 4 (GSNO) nebivolol 1 mg/kbw, respectively S-nitroso-glutathione 1 mg/kbw. Carrageenan-induced rat�s paw edema test w

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10

Rai, Kartik, Vincent Wu, Priya Gupta, David A. Laviska, and Benny C. Chan. "N-Methyl-N-nitroso-p-toluenesulfonamide." Acta Crystallographica Section E Structure Reports Online 70, no. 7 (2014): o782. http://dx.doi.org/10.1107/s1600536814013518.

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The crystal structure of the title compound, C8H10N2O3S, displays predominant C—H...O hydrogen-bonding and π–π stacking interactions. The hydrogen bonds are between the O atoms of the sulfonyl group and H atoms on methyl groups. The π–π stacking interactions occur between adjacent aromatic rings, with a centroid–centroid distance of 3.868 (11) Å. These interactions lead to the formation of chains parallel to (101).

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11

Salas-Peregrin, J. M., M. N. Moreno-Carretero, and E. Colacio-Rodriguez. "Zn(II), Cd(II), and Hg(II) complexes of 6-amino-3-methyl-5-nitrosouracil." Canadian Journal of Chemistry 63, no. 12 (1985): 3573–76. http://dx.doi.org/10.1139/v85-586.

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The preparation and spectral properties of the complexes of 6-amino-3-methyl-5-nitroso-uracil (HAMNU) with Zn(II), Cd(II), and Hg(II) ions are reported. The results suggest that the exocyclic oxygen and nitrogen atoms have a much greater tendency to bind to these ions than the ring nitrogen atoms. In Zn(II) and Cd(II) complexes, the ligand is N,O-coordinated through the 5-nitroso and 6-oxide groups of (AMNU) in nitrosophenolic anionic form. In the Hg(II) complexes, the ligand seems to be bound in neutral form. Tetrahedral structures are proposed in all cases.

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12

B., K. SARANGI, and K. BEHERA RAJANI. "Influence of Phenacyl Moiety as a Quaternising Group in the Absorption of Dyes derived from Nitrosoazapyrrocoline and Quaternary Heterocyclic Compounds." Journal of Indian Chemical Society Vol. 62, Oct 1985 (1985): 759–62. https://doi.org/10.5281/zenodo.6324523.

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Department of Chemistry, G. M. College, Sambalpur-768 004 <em>Manuscript received 28 May 1984, accepted 11 September 1985</em> The synthesis of 1-aza-3-nitroso-2-phenylpyrrocoline (1) has been described, The unusual absorption data of the dyes derived from the condensation of 1-aza-3-nitroso-2-phenylpyrrocoline and <em>N</em>-phenacyl-2-methyl- and <em>N</em>-phenacyl-2-amino-pyridine have been explained as arising out of cyclisation of product during the reaction. The influence of quaternising groups on the absorption of the dyes synthesised from the nitrosoazapyrrocoline (1) has been discuss

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13

Low, J. N., M. D. López, P. Arranz Mascarós, et al. "N-(6-Amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl) derivatives of glycine, valine, serine, threonine and methionine: interplay of molecular, molecular–electronic and supramolecular structures." Acta Crystallographica Section B Structural Science 56, no. 5 (2000): 882–92. http://dx.doi.org/10.1107/s0108768100005437.

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In each of N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl)valine, C10H15N5O4 (3) (orthorhombic, P212121), N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl)serine monohydrate, C8H11N5O5·H2O (4) (orthorhombic, P212121), and N-(6-amino-3,4-dihydro-3-methyl-5-nitroso-4-oxopyrimidin-2-yl)threonine, C9H13N5O5(5) (monoclinic, P21), the C-nitroso fragments exhibit almost equal C—N and N—O bond lengths: the C—N range is 1.315 (3)–1.329 (3) Å and the N—O range is 1.293 (3)–1.326 (3) Å. In each compound there are also very short intermolecular O—H...O hydrogen bonds, in which

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14

Melguizo, Group M., A. Marchal, M. Nogueras, A. Sánchez, and J. N. Low. "Aminolysis of methoxy groups in pyrimidine derivatives. Activation by 5-nitroso." Journal of Heterocyclic Chemistry 39, no. 1 (2002): 97–103. http://dx.doi.org/10.1002/jhet.5570390114.

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15

Inbal, Aida, Osnat Gurevitz, Ilia Tamarin, et al. "Unique Antiplatelet Effects of a Novel S-Nitrosoderivative of a Recombinant Fragment of von Willebrand Factor, AR545C: In Vitro and Ex Vivo Inhibition of Platelet Function." Blood 94, no. 5 (1999): 1693–700. http://dx.doi.org/10.1182/blood.v94.5.1693.

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Abstract The recombinant fragment of von Willebrand factor (vWF) spanning Ala444 to Asp730 and containing an Arg545Cys mutation (denoted AR545C) has antithrombotic properties that are principally a consequence of its ability to inhibit platelet adhesion to subendothelial matrix. Endothelial-derived nitric oxide (NO) can also inhibit platelet function, both as a consequence of inhibiting adhesion as well as activation and aggregation. Nitric oxide can react with thiol functional groups in the presence of oxygen to form S-nitrosothiols, which are naturally occurring NO derivatives that prolong t

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16

Inbal, Aida, Osnat Gurevitz, Ilia Tamarin, et al. "Unique Antiplatelet Effects of a Novel S-Nitrosoderivative of a Recombinant Fragment of von Willebrand Factor, AR545C: In Vitro and Ex Vivo Inhibition of Platelet Function." Blood 94, no. 5 (1999): 1693–700. http://dx.doi.org/10.1182/blood.v94.5.1693.417k32_1693_1700.

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The recombinant fragment of von Willebrand factor (vWF) spanning Ala444 to Asp730 and containing an Arg545Cys mutation (denoted AR545C) has antithrombotic properties that are principally a consequence of its ability to inhibit platelet adhesion to subendothelial matrix. Endothelial-derived nitric oxide (NO) can also inhibit platelet function, both as a consequence of inhibiting adhesion as well as activation and aggregation. Nitric oxide can react with thiol functional groups in the presence of oxygen to form S-nitrosothiols, which are naturally occurring NO derivatives that prolong the biolog

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17

Buca, Beatrice Rozalina, Liliana Mititelu Tartau, Ciprian Rezus, et al. "The Effects of Two Nitric Oxide Donors in Acute Inflammation in Rats Experimental data." Revista de Chimie 69, no. 10 (2018): 2899–903. http://dx.doi.org/10.37358/rc.18.10.6649.

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We aimed to investigate the effects of two nitric oxide donors in acute inflammation in rats. The experiment was carried out on white Wistar rats, randomly distributed in 4 groups of 5 animals each; the substances were administered intraperitoneally as follows: Group 1 (SS): saline solution 0.1mL/100 g body weight (control); Group 2 (IND): indometacin 150 mg/kg body weight; Group 3 (NEB): nebivolol 1 mg/kg body weight; Group 4 (GSNO): S-nitroso-glutathione 1 mg/kg body weight. An experimental model of acute hind paw inflammation with carrageenan was used for the researches. The influence of th

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18

Kafka, Stanislav, Antonín Klásek, and Petr Sedmera. "N-(2-Methyl-2-nitropropyl) and N-Nitroso Derivatives of Some Diamines." Collection of Czechoslovak Chemical Communications 60, no. 9 (1995): 1541–50. http://dx.doi.org/10.1135/cccc19951541.

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Preparation of ten new derivatives of 1,6-hexanediamine and 1,4-bis(4-aminophenoxy)butane with different combination of N-nitroso and/or N-(2-methyl-2-nitropropyl) groups is presented. The title compounds are potential improvers of vulcanized rubber dynamic properties.

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19

Song, Ting, Wenlei Tang, Chuer Bao, et al. "An fcu Th-MOF Constructed from In Situ Coupling of Monovalent Ligands." Symmetry 13, no. 8 (2021): 1332. http://dx.doi.org/10.3390/sym13081332.

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Synthetic efforts targeting highly symmetrical metal–organic frameworks (MOFs) have always been relentless, for the symmetry of a MOF’s pore environment and overall crystal structure are relevant to the MOF’s properties and behavior. Herein, we report a novel Th-based MOF constructed from assembling highly symmetrical Th-oxo clusters via in situ reductive coupling of nitroso groups on the cluster surface. Nitroso groups have long been known to dimerize in a reversible fashion. Putting them on the monovalent ligands that decorate the Th-oxo clusters can facilitate a downstream assembly process

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20

Gowenlock, Brian G., Mailer Cameron, Alan S. F. Boyd, Baheeja M. Al-Tahou, and Paul McKenna. "13C NMR spectroscopic studies of C-nitroso compounds. The orientation of the nitroso group in substituted nitrosobenzenes." Canadian Journal of Chemistry 72, no. 3 (1994): 514–18. http://dx.doi.org/10.1139/v94-074.

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The carbon-13 chemical shifts of several substituted nitrosobenzenes are reported. It is shown that the NO group can be orientated to lie in the plane of the ring when constrained either by a bulky ortho substituent or in the solid state. In the presence of 2,6-di-tert-butyl substituents the NO group is twisted into orthogonality with the ring. The changes in the 13C chemical shifts are larger for the NO group than for other functional groups. It is suggested that these effects are a consequence of the electronic character of the NO group and that the nitrogen lone pair of electrons is of fund

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21

Domasevitch, Kostiantyn V., Ganna A. Senchyk, Andrey B. Lysenko, and Eduard B. Rusanov. "Hydrogen-bonding landscape of the carbamoylcyanonitrosomethanide anion in the crystal structure of its ammonium salt." Acta Crystallographica Section E Crystallographic Communications 77, no. 11 (2021): 1103–8. http://dx.doi.org/10.1107/s2056989021010239.

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The structure of the title salt, ammonium carbamoylcyanonitrosomethanide, NH4 +·C3H2N3O2 −, features the co-existence of different hydrogen-bonding patterns, which are specific to each of the three functional groups (nitroso, carbamoyl and cyano) of the methanide anion. The nitroso O-atoms accept as many as three N—H...O bonds from the ammonium cations [N...O = 2.688 (3)–3.000 (3) Å] to form chains of fused rhombs [(NH4)(O)2]. The most prominent bonds of the carbamoyl groups are mutual and they yield 21 helices [N...O = 2.903 (2) Å], whereas the cyano N-atoms accept hydrogen bonds from sterica

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22

Ponomareva, Vera V., Victor V. Skopenko, Konstantin V. Domasevitch, Joachim Sieler, and Thomas Gelbrich. "Synthesis and Crystal Structure of a Caesium Hydrogen Benzoylcyanoximate Complex with 18-Crown-6: Cs(18-Crown-6){H(L)2}." Zeitschrift für Naturforschung B 52, no. 8 (1997): 901–5. http://dx.doi.org/10.1515/znb-1997-0803.

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Abstract The caesium hydrogen benzoylcyanoximate (L-) complex with 18-crown-6 of composition Cs(18-crown-6){H(L)2} has been prepared and studied by means of X-ray diffraction [monoclinic, space group P21/n, with a = 9.906(1), b = 18.387(3), c = 18.855(3)Å, β = 90.13(1)°, V = 3434.3(9) Å, Z = 4; final R1 = 0.043 for the 6431 independent reflections used. The lattice consists of Cs(18-crown-6)+ cations and complex hydrogen oximate anions {H(L)2}-, formed via strong hydrogen bonding between the oxygen atoms of nitroso-groups [O - - - O ca. 2.456(5)Å]. The caesium atom deviates by 1.492(3) Å from

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23

Kovalchukova, Olga, Amangdam A.T., Strashnova S.B., Strashnov P.V., Romashkina E.P., and Volyansky O.V. "Experimental and Theoretical Investigations of Complex Formation of Substituted Phenylazo-Derivatives of Methylphloroglucinol." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 5 (2013): 295–300. http://dx.doi.org/10.24297/jac.v12i5.5530.

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Using spectrophotometric titration technique, the processes of complex formation of some phenylazo-derivatives of methylphloroglucinol (MPG) containing hydroxo-, nitro- and nitroso-substituents were studied. The spectral criteria of neutral and ionized forms of the organic ligands in their different tautomeric forms were determined.It was detected that the complex formation is accompanied by formation of one or two chelate cycles which involve azo- or nitroso-fragments and neighboring OH-groups of the organic ligands. Different types of coordination lead to different changes in the electronic

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24

Kovalchukova, Olga, Amangdam A.T., Strashnova S.B., Strashnov P.V., Romashkina E.P., and Volyansky O.V. "Experimental and Theoretical Investigations of Complex Formation of Substituted Phenylazo-Derivatives of Methylphloroglucinol." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 8 (2016): 295–300. http://dx.doi.org/10.24297/jac.v12i8.2837.

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Using spectrophotometric titration technique, the processes of complex formation of some phenylazo-derivatives of methylphloroglucinol (MPG) containing hydroxo-, nitro- and nitroso-substituents were studied. The spectral criteria of neutral and ionized forms of the organic ligands in their different tautomeric forms were determined.It was detected that the complex formation is accompanied by formation of one or two chelate cycles which involve azo- or nitroso-fragments and neighboring OH-groups of the organic ligands. Different types of coordination lead to different changes in the electronic

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25

Kovalchukova, Olga, Amangdam A.T., Strashnova S.B., Strashnov P.V., Romashkina E.P., and Volyansky O.V. "Experimental and Theoretical Investigations of Complex Formation of Substituted Phenylazo-Derivatives of Methylphloroglucinol." JOURNAL OF ADVANCES IN CHEMISTRY 4, no. 1 (2008): 295–300. http://dx.doi.org/10.24297/jac.v4i1.957.

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Using spectrophotometric titration technique, the processes of complex formation of some phenylazo-derivatives of methylphloroglucinol (MPG) containing hydroxo-, nitro- and nitroso-substituents were studied. The spectral criteria of neutral and ionized forms of the organic ligands in their different tautomeric forms were determined.It was detected that the complex formation is accompanied by formation of one or two chelate cycles which involve azo- or nitroso-fragments and neighboring OH-groups of the organic ligands. Different types of coordination lead to different changes in the electronic

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26

Hanusek, Jiří, and Vladimír Macháček. "Intramolecular base-catalyzed reactions involving interaction between benzene nitro groups and ortho carbon chains." Collection of Czechoslovak Chemical Communications 74, no. 5 (2009): 811–33. http://dx.doi.org/10.1135/cccc2008216.

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The review is focused on the understanding of processes involving chemical interaction between benzene nitro group and ortho carbon chain containing heteroatom (N, O, S) adjacent to the ring. In most cases these compounds undergo base-catalyzed cyclization to give heteroaromatic N-oxides that can be subsequently transformed to related heterocycles under the same conditions. However, in some cases, depending on substitution of the benzene ring, side chain or the base used, the formation of other compounds – both heterocyclic and non-heterocyclic such as nitroso and azoxy compounds, spiro Meisen

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27

Bugaeva, Aleksandra I., and Yuriy G. Slizhov. "SILICA GEL MODIFICATION BY NICKEL(II) COMPLEXES WITH NITROGEN- AND OXYGEN-CONTAINING ORGANIC LIGANDS FOR GAS CHROMATOGRAPHY." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 64, no. 1 (2020): 59–66. http://dx.doi.org/10.6060/ivkkt.20216401.6299.

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Gas chromatographic sorbents based on Siloсhrome S-80 adsorptively modified with 8-hydroxyquinolinate, 1-phenylazo-2-naphtholate and 2-nitroso-1-naphtholate of nickel(II) have been obtained. It has been established that the thermal stability (up to 170–350 °C) of chelate-containing sorbents is sufficient for carrying out gas chromatographic separations. The IR and Raman spectra of the obtained materials confirmed the success of the complexation processes in the synthesis of complex nickel(II) compounds and the retention of coordination bonds after the deposition of chelates on silica gel. The

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Bugaeva, Aleksandra I., and Yuriy G. Slizhov. "SILICA GEL MODIFICATION BY NICKEL(II) COMPLEXES WITH NITROGEN- AND OXYGEN-CONTAINING ORGANIC LIGANDS FOR GAS CHROMATOGRAPHY." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 64, no. 1 (2020): 59–66. http://dx.doi.org/10.6060/ivkkt.20216401.6299.

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Gas chromatographic sorbents based on Siloсhrome S-80 adsorptively modified with 8-hydroxyquinolinate, 1-phenylazo-2-naphtholate and 2-nitroso-1-naphtholate of nickel(II) have been obtained. It has been established that the thermal stability (up to 170–350 °C) of chelate-containing sorbents is sufficient for carrying out gas chromatographic separations. The IR and Raman spectra of the obtained materials confirmed the success of the complexation processes in the synthesis of complex nickel(II) compounds and the retention of coordination bonds after the deposition of chelates on silica gel. The

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29

Barek, Jiří, Viktor Mejstřík, Ivana Švagrová, and Jiří Zima. "The determination of 4-substituted derivatives of N-nitroso-N-methyl aniline by fast scan differential pulse voltammetry at a hanging mercury drop electrode." Collection of Czechoslovak Chemical Communications 56, no. 12 (1991): 2815–26. http://dx.doi.org/10.1135/cccc19912815.

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Optimum conditions were found for the determination of N-nitroso-N-methyl aniline and its derivatives substituted in the 4 position by -CH3, -OCH3, -Cl, -CN, -OH or -NO2 groups by fast scan differential pulse voltammetry at a hanging mercury drop electrode in the concentration range 1 10-5-2 10-7 mol l-1. It was demonstrated that these techniques are useful for the analysis of a mixture of the test substances either directly or after separation by thin-layer chromatography and that false positive results can be eliminated by UV irradiation of the test sample. An attempt to further increase the

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30

H., Abdellatif, and Abd El Rady E. "Facile route for the synthesis and characterization of new naphtho[2,3-f]quinoxaline-dione, trione and anthra-dione derivatives." Chemistry International 6, no. 3 (2020): 122–30. https://doi.org/10.5281/zenodo.3552253.

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In the present study, addition of nitroso group at position 1 of 2-aminoanthraquinone (1) to yield 2-amino-1-nitroanthraquinone (2) was carried out by the reaction of compound (1) with sodium nitrite in water. Compound (2) was used as starting material to produce many new naphtho[2,3-<em>f</em>] quinoxaline-dione, trione, naphtho-pyrazole quinoxaline-dione, anthra-triazine-dione, naphtho-thiazole quinoxaline-dione and anthrabenzo-triazepine-dione derivatives by elimination of one molecule of water as an initial reaction step. The reacting moieties were nitroso and amino function groups to yiel

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31

Sheikh Bostanabad, Ali, Olga Kovalchukova, Svetlana Strashnova, Adam Stash та Igor Zyuzin. "Bis(N-nitroso-N-pentylhydroxylaminato-κ2O,O′)copper(II)". Acta Crystallographica Section E Structure Reports Online 70, № 4 (2014): m137—m138. http://dx.doi.org/10.1107/s1600536814004978.

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In the centrosymmetric title compound, [Cu(C5H11N2O2)2], the Cu2+ion, located on an inversion centre (Wyckoff position 2b), is in a square-planar environment, surounded by four O atoms of the N—O groups of twoN-nitroso-N-pentylhydroxylaminate ligands [Cu—O = 1.9042 (17) and 1.9095 (16) Å]. The hydroxylaminate monoanions are bidentate chelating ligands. The Cu2+cations form stacks along [010], with intermolecular Cu...N contacts of 3.146 (2) and 3.653 (2) Å.

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A., A. FADDA, M. KHALIL A., and M. EL-HABBAL M. "Synthesis of certain Sulphonamides and Aminopyranoquinoline Derivatives from 4-Hydroxyquinoline with Biological Interest." Journal of Indian Chemical Society Vol. 68, Jul 1991 (1991): 393–95. https://doi.org/10.5281/zenodo.5991965.

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Department of Chemistry, Faculty of Science, Mansoura University. Mansoura, Egypt <em>Manuscript received 2 April 1990, revised 21 November 1990, accepted 17 July 1991</em> Various sulpbonamides derivatives (3a-d) have been synthesised by the pyridine ring opening of 4-bydroxyqulnollne monoxime (la-d), and screened for their anti-bacterial activity. Furthermore. the reactivity of 4-hydroxyquinoline (1) towards different activated nitriles has been studied.

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Yeung, Chi-Tung, Wesley Chan, Wai-Sum Lo, Ga-Lai Law, and Wing-Tak Wong. "Synthesis of a Conformationally Stable Atropisomeric Pair of Biphenyl Scaffold Containing Additional Stereogenic Centers." Molecules 24, no. 3 (2019): 643. http://dx.doi.org/10.3390/molecules24030643.

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The synthesis of a new CF3-containing stereogenic atropisomeric pair of ortho-disubstituted biphenyl scaffold is presented. The atropisomers are surprisingly conformationally stable for isolation. X-ray structures show that their stability comes from an intramolecular hydrogen bond formation from their two hydroxyl groups and renders the spatial arrangement of their peripheral CF3 and CH3 groups very different. The synthesized stereogenic scaffold proved to be effective in catalyzing the asymmetric N-nitroso aldol reaction of enamine and nitrosobenzene. Compared to similar scaffolds without CF

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Resta, Thomas C., Nancy L. Kanagy, and Benjimen R. Walker. "Estradiol-induced attenuation of pulmonary hypertension is not associated with altered eNOS expression." American Journal of Physiology-Lung Cellular and Molecular Physiology 280, no. 1 (2001): L88—L97. http://dx.doi.org/10.1152/ajplung.2001.280.1.l88.

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Female rats develop less severe pulmonary hypertension (PH) in response to chronic hypoxia compared with males, thus implicating a potential role for ovarian hormones in mediating this gender difference. Considering that estrogen upregulates endothelial nitric oxide (NO) synthase (eNOS) in systemic vascular tissue, we hypothesized that estrogen inhibits hypoxic PH by increasing eNOS expression and activity. To test this hypothesis, we examined responses to the endothelium-derived NO-dependent dilator ionomycin and the NO donors S-nitroso- N-acetylpenicillamine and spermine NONOate in U-46619-c

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35

Witanowski, Michal, Zenobia Biedrzycka, Leszek Konopski, and Karol Grela. "Nitrogen NMR assessment of interactions between nitroso, cyano and acetyl groups across aliphatic systems." Magnetic Resonance in Chemistry 33, no. 8 (1995): 674–78. http://dx.doi.org/10.1002/mrc.1260330810.

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Melguizo, M., A. Marchal, M. Nogueras, A. Sanchez, and J. N. Low. "ChemInform Abstract: Aminolysis of Methoxy Groups in Pyrimidine Derivatives. Activation by 5-Nitroso Group." ChemInform 33, no. 28 (2010): no. http://dx.doi.org/10.1002/chin.200228190.

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Deb, Barun Kanti, та Amiya Kanti Ghosh. "Chelated compounds and derivative of β-alkoxycarbonylalkyltin chlorides — 5-arylazo-8-quinolinolates, alizarinates, and thiocyanate: preparation and spectroscopic studies". Canadian Journal of Chemistry 65, № 6 (1987): 1241–46. http://dx.doi.org/10.1139/v87-210.

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Complex formation with chelating ligands like 5-phenylazo-8-quinolinol, 5-(2I-carboxyphenylazo)-8-quinolinol, 1,2-dihydroxyanthraquinone (i.e., alizarin), and 1-nitroso-2-naphthol is due to nucleophilic attack on tin of the β-alkoxycarbonylalkyltin chlorides (a unique class of PVC stabilizer intermediates) with the subsequent elimination of hydrogen chloride. A number of complexes of the types R2SnL2, RSnL2Cl, R2SnLCl, R2Sn(LIHI)2, R2SnLII, and RSnLIICl (where R = CH3OCOCH2CH2—, C4H9OCOCH2CH2—, and CH3OCOCH(CH3)CH2—; LH = 5-phenylazo-8-quinolinol, 1-nitroso-2-naphthol; LIHHI = 5-(21-carboxyphe

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POTMISCHIL, Francisc, and Mihaela HILLEBRAND. "A computational study of the steric strain of –N=O groups in saturated nitrosamines." Revue Roumaine de Chimie 68, no. 1-2 (2023): 91–100. http://dx.doi.org/10.33224/rrch.2023.68.1-2.09.

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One of the most intensely studied features in the chemistry of nitrosamines is the restricted rotation around the N-N bond and, consequently, the estimation of the energy strain (Estr) determined by the NO group. This is rationalized in terms of the interaction between the electron lone-pairs of the amine nitrogen and the 𝜋 electrons of the –N=O group (nN-πNO* conjugation). Combining the results of DFT calculations on 43 nitrosamines (11 acyclic, 20 mono- and bicyclic and 12 tricyclic) with a multiple linear regression analysis, the paper affords a number of additive increments, which, by appr

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Kiriazis, L., E. Kalatzis, and N. E. Alexandrou. "Reactions of 2-, 3-, and 4-(N-nitroso)methylaminopyridine with esters containing active methylene groups." Journal of Heterocyclic Chemistry 26, no. 1 (1989): 155–60. http://dx.doi.org/10.1002/jhet.5570260128.

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Chen, Long-En, Anthony V. Seaber, Rima M. Nasser, Jonathan S. Stamler, and James R. Urbaniak. "Effects ofS-nitroso-N-acetylcysteine on contractile function of reperfused skeletal muscle." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 274, no. 3 (1998): R822—R829. http://dx.doi.org/10.1152/ajpregu.1998.274.3.r822.

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The ultimate goal of replantation and microsurgical reconstructive operations is to regain or improve impaired function of the tissue. However, the data related to the influence of NO on tissue function are limited. This study evaluated the effects of the NO donor S-nitroso- N-acetylcysteine (SNAC) on contractile function of skeletal muscle during reperfusion. Forty-nine rats were divided into six groups. The extensor digitorum longus (EDL) muscles in groups I and II were not subjected to ischemia-reperfusion but were treated with a low (100 nmol/min) or high (1 μmol/min) dose of SNAC. In grou

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Khabarov, Yuriy G., Viacheslav A. Veshnyakov, Vadim A. Plakhin, Evgeniy A. Skripnikov, and Denis V. Ovchinnikov. "Nitrosation of Lignosulfonates under Solid-Phase Catalysis Conditions." Lesnoy Zhurnal (Forestry Journal), no. 3 (June 10, 2024): 175–87. http://dx.doi.org/10.37482/0536-1036-2024-3-175-187.

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Lignosulfonates are the most common commercial lignin-based product due to their unique properties. Various methods are known for modifying lignosulfonates and lignosulfonic acids. This article presents the results of the development of a new approach to the production of nitrosated lignosulfonic acids. The method is based on a reaction catalyzed by cation exchange resins in the H-form: KU-2-8 cation exchanger and wofatite. The influence of reagent consumption and reaction duration on the course of nitrosation has been studied. The dynamics of the proposed nitrosation practically coincides wit

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Straube, E., W. Völkel, G. Bringmann, and W. Dekant. "Reaction of nitroso derivatives of dinitropyrenes with sulfhydryl groups of peptides and hemoglobinin vitroand in rats." Xenobiotica 35, no. 12 (2005): 1147–64. http://dx.doi.org/10.1080/00498250500342605.

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DI STILO, ANTONELLA, CLAUDIO MEDANA, BRUNO FERRAROTTI, et al. "IN VITRO AND IN VIVO VASODILATING ACTIVITY OF NITROSO DERIVATIVES GEM -SUBSTITUTED WITH ELECTRON-WITHDRAWING GROUPS." Pharmacological Research 41, no. 4 (2000): 469–74. http://dx.doi.org/10.1006/phrs.1999.0606.

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Matmin, Juan, Leny Yuliati, Mustaffa Shamsuddin, and Hendrik Oktendy Lintang. "Supramolecular Hydrogen Bonding Interactions of Novel 1,3,5-Benzenetricarbonyl Trisubstituted Alkyl for Anion Sensor Applications." Advanced Materials Research 925 (April 2014): 228–32. http://dx.doi.org/10.4028/www.scientific.net/amr.925.228.

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Herein we report the first example of benzene-1,3,5-tricarboxamide bearing hydrophobic aminododecane side chains (1) which spontaneously forms supramolecular network by a hydrogen bonding interaction. The compound 1 was synthesized by Schotten-Baumann reaction of 1,3,5-benzenetricarbonyl trichloride and 1-aminododecane in the presence of N,N-diisopropylethylamine. Nuclear Magnetic Resonance (NMR), Mass Spectrometry (MS), and Fourier Transform Infrared (FTIR) spectroscopies have proved the successful synthesis of 1 in 93% as white powder solid. The supramolecular organization was successfully u

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Moscoso, R., J. Carbajo, M. Lopez, L. J. Núñez-Vergara, and J. A. Squella. "A simple derivatization of multiwalled carbon nanotubes with nitroaromatics in aqueous media: Modification with nitroso/hydroxylamine groups." Electrochemistry Communications 13, no. 2 (2011): 217–20. http://dx.doi.org/10.1016/j.elecom.2010.12.027.

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46

Yoshioka, T., and T. Uematsu. "Formation of N-hydroxy-N-arylacetamides from nitroso aromatic compounds by the mammalian pyruvate dehydrogenase complex." Biochemical Journal 290, no. 3 (1993): 783–90. http://dx.doi.org/10.1042/bj2900783.

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Bovine, human and porcine heart mitochondria and isolated porcine heart pyruvate dehydrogenase complex (PDHC) pyruvate-dependently form N-hydroxy-N-arylacetamides from nitroso aromatic compounds, including carcinogenic 4-biphenyl and 2-fluorenyl derivatives. The PDHC-catalysed formation of N-hydroxyacetanilide (N-OH-AA) from nitrosobenzene (NOB), through a Ping Pong mechanism, is optimum at pH 6.8 and is accelerated by thiamin pyrophosphate, but is inhibited by thiamin thiazolone pyrophosphate and ATP. Km pyruvate in the reaction is independent of pH over the range tested, whereas KmNOB increa

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Yang, Ming, and Hu Lin Li. "Determination of Trace Nitrite by Differential Pulse Voltammetry Using Magnetic Microspheres." Collection of Czechoslovak Chemical Communications 67, no. 8 (2002): 1173–80. http://dx.doi.org/10.1135/cccc20021173.

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A new type of magnetic polymer microspheres containing methylamino groups on the surface was synthesized. It can be reacted with nitrite to produce electroactive N-nitroso compound. On reduction of this derivative collected on the magnetic electrode, nitrite can be determined. Under optimum conditions, the peak potential (Ep) of the derivative is -0.72 V (vs Ag/AgCl). Nitrite in the range 1-800 μg l-1 can be determined, the detection limit being 0.5 μg l-1. The relative standard deviation for determination of 100 μg l-1 nitrite was 1.96%. The method was used in the determination of nitrite in

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RICHTER-ADDO, GEORGE B. "Interactions of nitric oxide and organic nitroso compounds with metalloporphyrins and heme." Journal of Porphyrins and Phthalocyanines 04, no. 04 (2000): 354–57. http://dx.doi.org/10.1002/(sici)1099-1409(200006/07)4:4<354::aid-jpp240>3.0.co;2-v.

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The chemistry of nitric oxide (NO) has taken on new dimensions since the discovery, about a decade ago, of a myriad of biological events that NO participates in. Many of the foundations of metal-NO chemistry were laid out earlier by inorganic chemists and biochemists investigating the structures and electronic properties of the heme-NO moiety or its model compounds. Certainly, the persistent work over the last three decades by chemists working with metal nitrosyls has paid off. Current areas of research in heme-NO chemistry include (i) how the NO group approaches and binds to the metal center

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Steensrud, Tor, Jing Li, Xiaojing Dai, et al. "Pretreatment with the nitric oxide donor SNAP or nerve transection blocks humoral preconditioning by remote limb ischemia or intra-arterial adenosine." American Journal of Physiology-Heart and Circulatory Physiology 299, no. 5 (2010): H1598—H1603. http://dx.doi.org/10.1152/ajpheart.00396.2010.

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We have previously shown that remote ischemic preconditioning (rIPC) by transient limb ischemia leads to the release of a circulating factor(s) that induces potent myocardial protection. Intra-arterial injection of adenosine into a limb also leads to cardioprotection, but the mechanism of its signal transduction is poorly understood. Eleven groups of rabbits received saline control or rIPC or adenosine administration with additional pretreatment with the nitric oxide (NO) synthase blocker NG-nitro-l-arginine methyl ester, the NO donor S-nitroso- N-acetylpenicillamine, its non-NO-donating deriv

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Reynoso-Silva, Mónica, Carlos Álvarez-Moya, Rafael Ramírez-Velasco, et al. "Migration Groups: A Poorly Explored Point of View for Genetic Damage Assessment Using Comet Assay in Human Lymphocytes." Applied Sciences 11, no. 9 (2021): 4094. http://dx.doi.org/10.3390/app11094094.

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A new point of view for genetic damage assessment using the comet assay is proposed based on the number of migration groups, the number of comets in each group, and the groups with the highest number of comets. Human lymphocytes were exposed to different concentrations of Methyl Methane Sulfonate (MMS), Maleic Hydrazide (MH), 2,4-Dichlorophenoxyacetic (2,4-D), and N-nitroso diethylamine (NDEA). Using comet assay, the migration means of the comets were determined and later grouped arbitrarily in migration groups with no higher differences than 1 µc. The number of migration groups, the number of

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