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Journal articles on the topic '5-dimethylaniline'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Salim, Muhammad, Muhammad Nawaz Tahir, Muhammad Shahid, and Munawar Ali Munawar. "Crystal structure of 3-(3,4-dimethylanilino)-2-benzofuran-1(3H)-one." Acta Crystallographica Section E Crystallographic Communications 71, no. 6 (2015): o413. http://dx.doi.org/10.1107/s2056989015009299.

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In the title compound, C16H15NO2, the 2-benzofuran-1(3H)-one and 3,4-dimethylaniline fragments are oriented with a dihedral angle of 89.12 (5)°. N—H...O hydrogen-bond interactions join molecules intoC(6) chains propagating along theaaxis. In addition, there are π–π stacking interactions between the 2-benzofuranone benzene rings [centroid–centroid distance = 3.7870 (13) Å] and C—H...π interactions between one of the methyl groups and the 3,4-dimethylaniline benzene ring.

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2

Sweidan, Kamal, Norbert Kuhn, Cäcilia Maichle-Mößmer, and Manfred Steimann. "Reaction of a Zwitterionic Pyridinium Ylide with N,N-Dimethylaniline." Zeitschrift für Naturforschung B 65, no. 1 (2010): 99–100. http://dx.doi.org/10.1515/znb-2010-0118.

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1,3-Dimethyl-2,4,6-trioxo-5-pyridinomethyl-1,3-perhydrodiazin- 5-ylpyridinium ylide (3) reacts with N,N-dimethylaniline to give 5-((1,3-dimethyl-2,4,6-trioxo-hexahydropyrimidin- 5-yl)methyl)-5-(4-(dimethylamino)benzyl)-1,3- dimethylpyrimidine- 2,4,6(1H3H5H)-trione (6) in good yield. The crystal structure of 6 is reported

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3

Headley, John V., Donald B. Maxwell, Christopher Swyngedouw, and John R. Purdy. "Determination of Combined Residues of Metalaxyl and 2,6-Dimethylaniline Metabolites in Urine byGas Chromatography/Mass Spectrometry." Journal of AOAC INTERNATIONAL 79, no. 1 (1996): 117–23. http://dx.doi.org/10.1093/jaoac/79.1.117.

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Abstract A gas chromatographic/mass spectrometric (GC/MS) method for determination of combined residues of the fungicide metalaxyl and its metabolites in urine containing the 2,6-dimethylaniline moiety is described. The method is a modification of a method of Balasubramanian and Perez for analysis of metalaxyl invegetables. Noted modifications include replacement of steam extraction with extraction by methylene chloride and use of electron impact ionization GC/MS in the selected-ion mode. The method is linear over the range of 0.1-5 μg 2,6- dimethylaniline/g urine and has a detection limit of

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4

G., N. PATEL, and N. TRIVEDI K. "Abnormal Claisen Rearrangement of 3-Prenyloxyxanthone and 3-Prenyloxy-4-methylxanthone." Journal of Indian Chemical Society Vol. 65, Mar 1988 (1988): 192–93. https://doi.org/10.5281/zenodo.6035255.

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Department of Chemistry, Faculty of Science, M. B. University of Baroda, Baroda-390 002 <em>Manuscript received 29 July 1986, revised 9 September 1987, accepted 7 January 1988</em> Claisen rearrangement of 3-prenyloxyxanthone (1), when refluxed with dimethylaniline gave 4-(1,2-dimethylpropenyl)-3-hydroxyxanthone (2) and 1,1,2-trimethyl-1,2-dihydro-6<em>H</em>-furo[3,4-<em>b</em>]xanthen-9-one (3). 3-Prenyloxy-4- methylxanthone (4) on Claisen migration in dimethylaniline gave 2-(1,2- dimethylpropenyl)-3-hydroxy-4-methylxanthone (5). Also, Claisen rearrangement of 1 has been studied in

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5

Luceri, Francesca, Giuseppe Pieraccini, Gloriano Moneti, and Piero Dolara. "Primary Aromatic Amines from Side-Stream Cigarette Smoke are Common Contaminants of Indoor Air." Toxicology and Industrial Health 9, no. 3 (1993): 405–13. http://dx.doi.org/10.1177/074823379300900302.

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A very sensitive mass-spectrometry method has been developed for the analysis of aromatic amines in tobacco smoke and in indoor air. Cigarettes were smoked with a smoking machine; the anwies from the smoke were trapped in a 5% HCl water solution containing internal standards and detected by gas chromatography/mass spectrometry in the selected-ion-monitoring (SIM) mode. The amines measured were the following: aniline. 2-toluidine, 3-toluidine, 4-toluidine, 2-ethylaniline, 3-ethylaniline, 4-ethylaniline, 2,3-dimethylaniline, 2,4-dimethylaniline, 2,5-dimethylaniline, 2,6-dimethylaniline, 1-naphth

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6

Kshtriya, Vivekshinh, Bharti Koshti, Tahir Mehmood, et al. "A new aggregation induced emission enhancement (AIEE) dye which self-assembles to panchromatic fluorescent flowers and has application in sensing dichromate ions." Soft Matter 18, no. 15 (2022): 3019–30. http://dx.doi.org/10.1039/d2sm00154c.

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We report for the very first time the crystal structure and self-assembly of a new aggregation-induced emission enhancement (AIEE) dye 4-(5-methoxythiazolo[4,5-b]pyridin-2-yl)-N,N-dimethylaniline (TPA) to well defined panchromatic fluorescent flower-like morphologies and its application in sensing dichromate ions.

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7

Tasnim, M. M., K. Chakrabarty, M. K. Biswas, E. Hoque, S. M. Sharafuddin, and Y. Haque. "Measurement of the nonlinear refractive index of 2, 5-dimethylaniline by a new technique using Mach–Zehnder interferometer." Journal of Nonlinear Optical Physics & Materials 24, no. 01 (2015): 1550004. http://dx.doi.org/10.1142/s0218863515500046.

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Mach–Zehnder interferometric technique has been used to calculate the nonlinear refractive index (n2) of 2, 5-dimethylaniline (DMA) dissolved in methanol. The technique uses the ratio of the measured input powers to the corresponding output powers to estimate the nonlinear phase shift of DMA. Calculated value of the nonlinear refractive index of DMA was fund to be of the order of 10-6 cm2/W.

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8

Nadkarni, N. G., and K. V. Mangaonkar. "Stability Studies of Transition Metal Chelates of 5-Bromosalicylidene-4-methoxyaniline andSalicylidene-2,3-dimethylaniline as Ligands." E-Journal of Chemistry 8, no. 4 (2011): 1911–15. http://dx.doi.org/10.1155/2011/924167.

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Binary and ternary complexes of the type M-Y and M-X-Y [M = Mn(II), Ni(II), Cu(II) and Zn(II); X = 5-bromosalicylidene-4-methoxyaniline and Y = salicylidene-2,3-dimethylaniline] have been examined pH-metrically at 27±0.5°C and at constant ionic strength, μ = 0.1 M (KCl) in 75 : 25(v/v) 1,4-dioxne-water medium. The stability constants for binary (M-Y) and ternary (M-X-Y) systems were calculated.

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9

M., KALYANASUNDARI, and PANCHANATHESWARAN K. "Ligand Association of N,N-Dimethylaniline with Uranium(IV) Chloride." Journal of Indian Chemical Society Vol. 65, Jan 1988 (1988): 60–61. https://doi.org/10.5281/zenodo.6119059.

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Department of Chemistry, Bharathidasan University, Tiruchirapalli -620 024 <em>Manuscript received 15 May 1987, revised 23 November 1987, accepted 2 December 1987</em> LIGAND association plays a prominent role in the synthesis of organoactinide compounds. The stability of ( \(\eta\)<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)UCI<sub>3</sub>.DME<sup>1</sup> and (\(\eta\)<sup>5 </sup>C<sub>5</sub>H<sub>5</sub>)UCI<sub>3</sub>. 2THF<sup>2</sup> are attributed to the coordination of THF or DME to uranium (THF=tetrahydrofuran, DME= 1,2-dimethoxyethane). During our attempts to make t

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10

Das, Ponkog K., Manash K. Biswas, Enamul Hoque, et al. "Nonlinear refractive index of 2, 5-Dimethylaniline in methanol by Z-scan technique." Journal of Optics 44, no. 2 (2014): 146–50. http://dx.doi.org/10.1007/s12596-014-0208-7.

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11

Kindo, Shashibala, Manish K. Rai, Ramsingh Kurrey, and Joyce Rai. "Kinetic Study of Solvent Effect on the Hydrolysis of Mono-3, 5-Dimethylaniline Phosphate." Journal of Ravishankar University (PART-B) 35, no. 2 (2023): 76–81. http://dx.doi.org/10.52228/jrub.2023-35-2-7.

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The hydrolysis of phosphate esters is one of the most fundamental chemical and biochemical reaction. The kinetic solvent effect on the hydrolysis of mono-3, 5-dimethylaniline phosphate has been studied in aqueous mixtures of varying compositions (0-40% v/v) of some protic and aprotic solvents at four different temperatures. The rate of reactions increases with increasing proportion of solvents. Activation parameters (Ea, ΔH≠, ΔG≠, -ΔS≠) have been evaluated. The significance of these parameters have been explained on the basis of solvent-solute interaction, solvent of the transition state of th

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12

Kudelko, Agnieszka, Monika Olesiejuk, Marcin Luczynski, Marcin Swiatkowski, Tomasz Sieranski, and Rafal Kruszynski. "1,3,4-Thiadiazole-Containing Azo Dyes: Synthesis, Spectroscopic Properties and Molecular Structure." Molecules 25, no. 12 (2020): 2822. http://dx.doi.org/10.3390/molecules25122822.

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Three series of azo dyes derived from 2-amino-5-aryl-1,3,4-thiadiazoles and aniline, N,N-dimethylaniline and phenol were synthesized in high yields by a conventional diazotization-coupling sequence. The chemical structures of the prepared compounds were confirmed by 1H-NMR, 13C-NMR, IR, UV-Vis spectroscopy, mass spectrometry and elemental analysis. In addition, the X-ray single crystal structure of a representative azo dye was presented. For explicit determination of the influence of a substituent on radiation absorption in UV-Vis range, time-dependent density functional theory calculations we

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13

Buttery, J. E., and P. R. Pannall. "Sensitivity of the direct oxalate oxidase assay of urinary oxalate improved." Clinical Chemistry 33, no. 10 (1987): 1931–33. http://dx.doi.org/10.1093/clinchem/33.10.1931.

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Abstract The direct colorimetric method for urinary oxalate has been modified to improve its sensitivity. Oxalate is precipitated overnight with calcium chloride and ethanol, the precipitate is redissolved, and the oxalate is measured by use of oxalate oxidase (EC 1.2.3.4), methylbenzothiazolinone hydrazone, and dimethylaniline. The color developed is more intense, analytical recovery averages 102%, and the overall imprecision is less than 5%. To assess the accuracy of the method, we used a gas-chromatography comparison method and control sera. Interference from ascorbate is negligible. The mo

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14

Yitong, Lu, Xue Yuzhong, Xu Jin, and Yan Wei. "Gas Chromatographic Determination of Acaricide Danjiami in Citrus and Soil." Journal of AOAC INTERNATIONAL 75, no. 6 (1992): 1100–1102. http://dx.doi.org/10.1093/jaoac/75.6.1100.

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Abstract A method is described for determining total danjiami residues in citrus and soil. Danjiami and its metabolites are hydrolyzed to 2,4-dimethylaniline by ref luxing with acid/base, re-extracted with petroleum ether, and cleaned up with acid/base partition. Sample is then derivatized to the heptafluorobutyranilide and quantitated by electron capture gas chromatography. Theoretical detectable limits are 5 ppb for citrus pulp and soil and 1 ppb for citrus peel. Recoveries for control samples fortified with danjiami at 0.25-2.0 ppm averaged 82.4% for citrus and 82.8% for soil

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15

Górecki, Sebastian, and Agnieszka Kudelko. "Synthesis and Characterization of Novel 2-Alkyl-1,3,4-Oxadiazoles Containing a Phenylazo Group." Molecules 29, no. 18 (2024): 4316. http://dx.doi.org/10.3390/molecules29184316.

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An efficient method for the synthesis of novel phenylazo-containing moieties is described. The derivatives of 5-(4-(phenyldiazenyl)phenyl)-1,3,4-oxadiazole, substituted at position 2 of the heterocyclic scaffold with alkyl groups of different chain lengths, were prepared. The titled compounds were obtained using the appropriate 4-(5-alkyl-1,3,4-oxadiazol-2-yl)anilines, which were directed to diazotization and subsequently coupled to phenol, resorcinol, and N,N-dimethylaniline. Additionally, we report a mild and effective procedure for the preparation of 4-(5-alkyl-1,3,4-oxadiazol-2-yl)anilines

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16

Zalov, A. Z., K. O. Iskenderova, Z. G. Askerova, and A. B. Hajiyeva. "SPECTROPHOTOMETRIC STUDY OF NICKEL (II) COMPLEXES WITH 2- HYDROXYTHIOLPHENOL AND ITS DERIVATIVES IN THE PRESENCE OF HYDROPHOBIC AMINES." Chemical Problems 19, no. 4 (2021): 224–31. http://dx.doi.org/10.32737/2221-8688-2021-4-224-231.

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The complexation reactions of nickel (II) with 2-hydroxythiophenol and its derivatives (2,5- dihydroxythiophenol, 2-hydroxy-5-chlorothiophenol, 2-hydroxy-5-bromothiophenol, and 2-hydroxy-5- iodothiophenol) in the presence of hydrophobic amines were studied by spectrophotometric methods. Aniline and N, N-dimethylaniline were used as hydrophobic amines. It found that mixed-ligand complexes (MLC) are formed in a weakly acidic medium (pH 2.3-8.0). The maximum in the light absorption spectrum of the complexes is observed at λ = 620-650 nm. The molar coefficients of light absorption are (4.1-4.3)×10

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17

Ajibade, Peter A., and Fartisincha P. Andrew. "4-(((4-Methoxyphenyl)amino)methyl)-N,N-dimethylaniline and 2-Methoxy-5-((phenylamino)methyl)phenol." Molbank 2021, no. 3 (2021): M1274. http://dx.doi.org/10.3390/m1274.

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Molecular structures of 4-(((4-methoxyphenyl)amino)methyl)-N,N-dimethylaniline and 2-methoxy-5-((phenylamino)methyl)phenol synthesized via Schiff bases reduction route are reported. The compounds consist of asymmetric units of C16H20N2O (1) and C14H15NO2 (2) in orthorhombic and monoclinic crystal systems, respectively. Compound 1 consist of intermolecular C11—H11···N2 hydrogen bonding with C11···N21 = 3.463(4) Å. The hydroxyl group in 2 is also involved in intermolecular O2—H2···O2 and O2—H2···O21 hydrogen bonding with O2···O11 = 2.8885(15) Å and O1···O21 = 2.9277(5) Å. The molecular structure

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18

ลาภวิบูลย์สุข, จุฑาทิพย์, พัฒน์นิภา วงศ์พิชัย та สมภพ ลาภวิบูลย์สุข. "การตรวจหาปริมาณสารไพมารีอะโรมาติกเอมีนใน วัสดุสัมผัสอาหารด้วยเทคนิคอัลตราไฮเพอร์ฟอร์แมนซ์ลิควิด โครมาโทกราฟี-แทนเดมแมสสเปกโทรเมตรี". วารสารวิทยาศาสตร์ประยุกต์ กรมวิทยาศาสตร์บริการ 13, № 1 (2024): 37–51. http://dx.doi.org/10.60136/bas.v13.2024.1129.

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การตรวจวัดสาร Primary aromatic amines (PAAs) ในวัสดุสัมผัสอาหาร จํานวน 10 ชนิด ได้แก่ Aniline (ANL), o-Anisidine (o-ASD), 4-chloro-aniline (4-CA), 4-chloro-o-toluidine (4-COT), 2,6-dimethylaniline (2,6-DMA), 4,4’-methylenedianiline (4,4’-MDA), 4,4-methylenedi-o-toluidine (4,4’-MDOT), 2-methoxy-5-methylaniline (2-M-5- MA), m-phenylenediamine (m-PDA) และ o-toluidine (o-T) ได้ดําเนินการโดยสกัดสาร PAAs ด้วยสารละลายตัวแทน อาหารเป็นกรดอะซิติก ความเข้มข้นร้อยละ 3 (น้ำหนักต่อปริมาตร) ที่อุณหภูมิ 100 องศาเซลเซียส แล้วทําการตรวจวัด โดยใช้เทคนิคอัลตราไฮเพอร์ฟอร์แมนซ์ลิควิด โครมาโทกราฟี-แทนเดมแมสสเปกโทรเม

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19

Camargo, H. A., N. M. Habran, J. A. Henao, D. F. Amado, and V. V. Kouznetsov. "Synthesis and X-ray diffraction data of 1-[N-(methyl)-(3,5-dimethylphenylamino)]methylnaphthalene." Powder Diffraction 26, no. 1 (2011): 74–77. http://dx.doi.org/10.1154/1.3540774.

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The 1-[N-(methyl)-(3,5-dimethylphenylamino)]methylnaphthalene (chemical formula C20H21N) was prepared by means of a condensation between alpha-naphthylaldehyde and 3,5-dimethylaniline in anhydrous ethanol to obtain the aldimine (1) which was reduced with NaBH4 to afford the 1-[N-(3,5-dimethylphenylamino)]methylnaphtalene (2), and finally, the compound (3) was obtained by N-alkylation reaction of (2) with methyl iodine (CH3I) and potassium carbonate (K2CO3) in acetone. Final compound (3) was purified by chromatographic column. The XRPD pattern for the new compound, 1-[N-(methyl)-(3,5-dimethylph

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20

Boev, A. M., A. I. Moskalenko, and V. I. Boev. "Mercuration with Mercury(II) Trifluoroacetate of ( 6-Aniline)- or (N,N-dimethylaniline)( 5-cyclopentadienyl)iron(II)." Russian Journal of General Chemistry 73, no. 10 (2003): 1511–15. http://dx.doi.org/10.1023/b:rugc.0000016012.56251.ef.

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21

Joshi, K. R., A. J. Rojivadiya, and J. H. Pandya. "Synthesis and Spectroscopic and Antimicrobial Studies of Schiff Base Metal Complexes Derived from 2-Hydroxy-3-methoxy-5-nitrobenzaldehyde." International Journal of Inorganic Chemistry 2014 (November 17, 2014): 1–8. http://dx.doi.org/10.1155/2014/817412.

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Two new series of copper(II) and nickel(II) complexes with two new Schiff base ligands 2-((2,4-dimethylphenylimino)methyl)-6-methoxy-4-nitrophenol and 2-((3,4-difluorophenylimino)methyl)-6-methoxy-4-nitrophenol have been prepared. The Schiff base ligands were synthesized by the condensation of 2-hydroxy-3-methoxy-5-nitrobenzaldehyde with 2,4-dimethylaniline or 3,4-difluoroaniline. The ligands and their metal complexes have been characterized by IR, 1H NMR, mass and electronic spectra and TG analysis. The Schiff base ligands and their metal complexes were tested for antimicrobial activity again

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22

Weber, Lothar, Eckhard Dobbert, Andreas Rausch, Hans-Georg Stammler, and Beate Neumann. "Synthese, Struktur und Reaktivität von 2-Amino- und 2-Imino-2,3-dihydro-1H-1,3,2-diazaborolen / Synthesis, Structure and Reactivity of 2-Amino- and 2-Imino-2,3-dihydro-1H-1,3,2-diazaboroles." Zeitschrift für Naturforschung B 54, no. 3 (1999): 363–71. http://dx.doi.org/10.1515/znb-1999-0312.

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The 2-halo-2,3-dihydro-1H-1,3,2-diazaboroles (1a′: R = tBu, X = Br; 1b: R = 2,6-Me2C6H3; X = I) were converted into the 2-amino-2,3-dihydro-1H-1,3,2- diazaboroles (2a: R = tBu; 2b: 2,6-Me2C6H3) by treatment with dry gaseous ammonia. Similarly reaction of 1a′ with 2,6-dimethylaniline or tBuNH2 afforded the corresponding derivates (3; R1 = 2,6-Me2C6H3; 4; R1 = tBu). The treatment of 1a′ with the ethylene diamine adduct of lithium acetylide led to the formation of (5). Lithiation of 2 a and subsequent silylation gave 6 (R1 = SiMe3), which was transformed to the diborolylamine (7) upon exposure to

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23

Navarrete Guitérrez, Angélica, Gerardo Aguirre Hernández, and Sylvain Bernès. "Crystal structures ofp-substituted derivatives of 2,6-dimethylbromobenzene with ½ ≤Z′ ≤ 4." Acta Crystallographica Section E Crystallographic Communications 72, no. 12 (2016): 1762–67. http://dx.doi.org/10.1107/s2056989016017485.

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The crystal structures of four bromoarenes based on 2,6-dimethylbromobenzene are reported, which are differentiated according the functional groupXplacedparato the Br atom:X= CN (4-bromo-3,5-dimethylbenzonitrile, C9H8BrN), (1),X= NO2(2-bromo-1,3-dimethyl-5-nitrobenzene, C8H8BrNO2), (2),X= NH2(4-bromo-3,5-dimethylaniline, C8H10BrN), (3) andX= OH (4-bromo-3,5-dimethylphenol, C8H9BrO), (4). The content of the asymmetric unit is different in each crystal,Z′ = ½ (X= CN),Z′ = 1 (X= NO2),Z′ = 2 (X= NH2), andZ′ = 4 (X= OH), and is related to the molecular symmetry and the propensity ofXto be involved

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24

Barek, Jiří, Tibor J. Pastor, and Jiří Zima. "The determination of N,N-dimethyl-4-aminoazobenzene and its reduction products by anodic voltammetry at a glassy carbon electrode." Collection of Czechoslovak Chemical Communications 56, no. 6 (1991): 1210–20. http://dx.doi.org/10.1135/cccc19911210.

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The oxidation of N,N-dimethl-4-aminoazobenzene at a rotating and stationary glassy carbon disk electrode in a medium of 40% (v/v) acetic acid was studied in the framework of a systematic study of methods for determing the efficiency of the destruction of the genotoxic derivatives of this substance; conditions were found for the determination using direct current and differential pulse voltammetry. Analogous conditions were used to determine aniline, N,N-dimethylaniline and N,N-dimethyl-p-phenylendiamine as model substances representing possible products of the reductive splitting of genotoxic

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25

Dabbagh, Hossein A., Nader Noroozi-Pesyan, Brian O. Patrick, and Brian R. James. "A one-pot synthesis and X-ray crystallographic and computational analyses of methyl-2,4-dimethoxysalicylate a potential anti-tumour agent." Canadian Journal of Chemistry 82, no. 7 (2004): 1179–85. http://dx.doi.org/10.1139/v04-113.

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The thermal decarboxylation of 2-methoxycarbonyl-5-(4′-nitrophen-oxy)tetrazole (1a) with the electron-rich, aromatic compounds (anisole, N,N-dimethylaniline, 1,4-dimethoxybenzene, and 1,3,5-trimethoxybenzene), neat or in polar solvents (DMSO, DMF, and CH3CN), is investigated. The solid phase thermal decomposition of a mixture of 1a, 1,3,5-trimethoxybenzene, and a Lewis acid (AlCl3) produces methyl-2,4-dimethoxysalicylate (8) in good yield, instead of the expected 2,4,6-trimethoxybenzoic acid. The X-ray structure of 8 shows intramolecular hydrogen bonds between the carbonyl oxygen and hydrogens

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26

Zalov, Ali Z., and Kiril Blazhev Gavazov. "LIQUID-LIQUID EXTRACTION-SPECTROPHOTOMETRIC DETERMINATION OF MOLYBDENUM USING o-HYDROXYTHIOPHENOLS." JOURNAL OF ADVANCES IN CHEMISTRY 10, no. 8 (2017): 3003–11. http://dx.doi.org/10.24297/jac.v10i8.6687.

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27 liquid-liquid extraction-chromogenic systems containing Mo(VI), o-hydroxythiophenol derivative {HTPDs: 2-hydroxy-5-chlorothiophenol (HCTP), 2-hydroxy-5-bromothiophenol (HBTP) or 2-hydroxy-5-iodothiophenol (HITP)} and aromatic amine (AA) were studied. Aniline (An), N-methylaniline (mAn), N,N-dimethylaniline (dAn), o-toluidine (o-Tol), m-toluidine (m-Tol), p-toluidine (p-Tol), 3,4-xylidine (o-Xyl), 2,4-xylidine (m-Xyl), and 2,5-xylidine (p-Xyl) were the examined AAs. Optimization experiments for molybdenum extraction-spectrophotometric determination were performed and the following parameters

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27

Armstrong, David R., Liam Balloch, Eva Hevia, et al. "Meta-metallation of N,N-dimethylaniline: Contrasting direct sodium-mediated zincation with indirect sodiation-dialkylzinc co-complexation." Beilstein Journal of Organic Chemistry 7 (September 6, 2011): 1234–48. http://dx.doi.org/10.3762/bjoc.7.144.

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Previously we reported that direct zincation of N,N-dimethylaniline by the mixed-metal zincate reagent 1 ((TMEDA)Na(TMP)(t-Bu)Zn(t-Bu)) surprisingly led to meta-metallation (zincation) of the aniline, as manifested in the crystalline complex 2 ((TMEDA)Na(TMP)(m-C6H4-NMe2)Zn(t-Bu)), and that iodination of these isolated crystals produced the meta-isomer N,N-dimethyl-3-iodoaniline quantitatively. Completing the study here we find that treating the reaction solution with iodine produces a 72% conversion and results in a mixture of regioisomers of N,N-dimethyliodoaniline, with the meta-isomer stil

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Balakit, Asim A., Ahmed Ahmed, Gamal A. El-Hiti, Keith Smith, and Emad Yousif. "Synthesis of New Thiophene Derivatives and Their Use as Photostabilizers for Rigid Poly(vinyl chloride)." International Journal of Polymer Science 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/510390.

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Five new thiophenes, namely,N-[(3-bromo-2-methylthiophen-5-yl)methylene]-4-methoxyaniline (4a),N-[(3-bromo-2-methylthiophen-5-yl)methylene]-3,4-dimethoxyaniline (4b),N-[(3-bromo-2-methylthiophen-5-yl)methylene]-3,4-dimethylaniline (4c), 3-[(3-bromo-2-methylthiophen-5-yl)methyleneamino]-2-methylquinazolin-4(3H)-one (4d), and 3-[(3-bromo-2-methylthiophen-5-yl)methyleneamino]-2-isopropylquinazolin-4(3H)-one (4e), have been synthesized. All of these materials brought about a reduction in the level of photodegradation of poly(vinyl chloride) (PVC) films containing the synthesized thiophenes (0.5%;

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Moon, Seo Hyun, and Min Young Kim. "METABOLIC ACTIVATION OF 2,6-DIMETHYLANILINE: MUTATIONAL SPECIFICITY IN THE GPT GENE OF AS52 CELLS." Asian Journal of Pharmaceutical and Clinical Research 11, no. 9 (2018): 394. http://dx.doi.org/10.22159/ajpcr.2018.v11i9.27819.

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Objective: The purpose of the current work was to characterize the mechanisms of cytotoxicity and mutagenesis of a potential human bladder carcinogen 2,6-dimethylaniline (2,6-DMA).Methods: Chinese hamster ovary (CHO) AS52 cells were exposed to either human S9 activated 2,6-DMA for 6 h or its N-hydroxylamine and aminophenol metabolites for 1 h in serum-free medium. Cell survival was determined by trypan blue exclusion 24 h after treatment, and 6-thioguanine-resistant mutants at the xanthine-guanine phosphoribosyl transferase (gpt) gene locus were assessed with doses, of which relative survival

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30

Jochriem, Markus, Klaus Wurst, Holger Kopacka, and Benno Bildstein. "Crystal structures of 1′-aminocobaltocenium-1-carboxylic acid chloride monohydrate and of its azo dye 1′-[2-(1-amino-2,6-dimethylphenyl)diazen-1-yl]cobaltocenium-1-carboxylic acid hexafluoridophosphate monohydrate." Acta Crystallographica Section E Crystallographic Communications 75, no. 2 (2019): 208–13. http://dx.doi.org/10.1107/s2056989019000562.

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1′-Aminocobaltocenium-1-carboxylic acid chloride, [Co(C5H6N)(C6H5O2)]Cl·H2O, (3), and its azo derivative 1′-[2-(1-amino-2,6-dimethylphenyl)diazen-1-yl]cobaltocenium-1-carboxylic acid hexafluoridophosphate, [Co(C13H14N3)(C6H5O2)]PF6·H2O (5) were obtained from cobaltocenium-1,1′-dicarboxylic acid hexafluoridophosphate by converting one carboxyl group to its chlorocarboxyl derivative followed by chloride/azide exchange, Curtius rearrangement, diazotiation and azo coupling with 2,6-dimethylaniline. Both title compounds crystallize as their monohydrates. In the crystal structure of 3, both function

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Ullah, Saleem, Irshad Ahmad, Yatimah Alias, Ismail Yusoff, and Muhammad Aqeel Ashraf. "Characterization of Triphenylamino-Based Polymethine Dyes." Journal of Chemistry 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/136908.

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In this high-technology application, age functional dyes especially polymethine dyes have captured much attention of the researchers due to their immense potential for high-tech uses. Polymethine dyes show promising absorption spectra in the visible range, which can be easily exploited for the use of written text copying, photographic imaging, or photothermographic recording materials. Keeping this in mind, our research is composed of an investigation of two triphenylamino-based polymethine dyes, a known polymethine dye 3 and a new one polymethine dye 5, which have been synthesized by the reac

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R., D. Kaushik, Singh Jaspal, Agarwal Richa, and Kumari Ekata. "Stopped flow kinetics of MnII catalysed periodate oxidation of 3,5-dimethylaniline – Evaluation of stability constant of the ternary intermediate complex." Journal of Indian Chemical Society Vol. 94, Jun 2017 (2017): 605–12. https://doi.org/10.5281/zenodo.5612588.

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Department of Chemistry, Gurukul Kangri University, Haridwar-249 404, Uttarakhand, India E-mail : rduttkaushik@yahoo.co.in Uttaranchal College of Science and Technology, Dehradun-248 001, Uttarakhand, India Manuscript received online 21 February 2017, accepted 22 February 2017 The formation of ternary intermediate unstable complex during the oxidation of aromatic amines by periodate ion catalysed by Mn<sup>II</sup> has been proposed in case of some anilines. This paper is the first report on kinetic study and evaluation of stability constant of ternary complex forming in the Mn<sup>II</sup>-ca

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33

Shein, Anatoliy B., Mariya D. Plotnikova, and Alexander E. Rubtsov. "PROTECTIVE PROPERTIES OF SOME THIADIAZOLE DERIVATIVES IN SULFURIC ACID SOLUTIONS." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 62, no. 7 (2019): 123–29. http://dx.doi.org/10.6060/ivkkt.20196207.5968.

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The work presents the results of the study of some thiadiazole derivatives as corrosion inhibitors for mild steel in 5-20% H2SO4. Gravimetric tests and electrochemical studies were performed on low-carbon steel St3 at ambient temperature. The exposure time of the samples was 24 h. Polarization curves were obtained by potentiodynamic method (v = 1 mV/s) in a three-electrode cell, using the SOLARTRON 1280 C electrochemical measuring complex. The following thiadiazole derivatives were studied: (E)-N,N-dimethyl-4-{[(5-phenyl-1,3,4-thiadiazol-2-yl)imino]methyl}aniline, (E)-5-{[4-(dimethylamino)benz

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34

Sun, Jian Qi, Ming Tang, and Jun Dai. "Determination of Aromatic Amines in Wastewater by Dispersive Liquid-Liquid Microextraction Coupled to Capillary Gas Chromatography." Advanced Materials Research 881-883 (January 2014): 631–34. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.631.

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A simple and reliable method combining dispersive liquid-liquid microextracion (DLLME) with gas chromatography (GC) using flame ionization detection (FID) was developed for the simultaneous determination of aniline (AL),o-toluidine (o-TLD),N,N-dimethylaniline (N,N-DAL),p-chloroaniline (p-CAL), andp-nitroaniline (p-NAL) in wastewater. For this purpose, dispersive liquid-liquid microextraction (DLLME) was applied as a sample preparation technique. The DLLME conditions such as the types and volume of extraction solvent, the types and volume of the disperser solvent, pH value and salt addition wer

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35

Moon, Seo Hyun, and Min Young Kim. "MUTATIONAL SPECIFICITY OF 2, 6-DIMETHYLANILINE WITH IN VITRO HUMAN S9 METABOLIC ACTIVATION IN THE GPT GENE OF AS52 CELLS." International Journal of Pharmacy and Pharmaceutical Sciences 10, no. 1 (2018): 19. http://dx.doi.org/10.22159/ijpps.2018v10i1.23133.

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Objective: The purpose of the current work was to characterize mechanisms of cytotoxicity and mutagenesis of a potential human bladder carcinogen 2,6-dimethylaniline (2,6-DMA).Methods: Chinese hamster ovary (CHO) AS52 cells were exposed to either human S9 activated 2,6-DMA for 6 h or its N-hydroxylamine and aminophenol metabolites for 1 h in serum-free medium. Cell survival determined by trypan blue exclusion 24 h after treatment, and 6-thioguanine-resistant mutants at the xanthine-guanine phosphoribosyltransferase (gpt) gene locus were assessed with doses of which relative survival is 30% or

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36

Vaghasiya, Yogesh, Rathish Nair, Mayur Soni, Shipra Baluja, and Sumitra Shanda. "Synthesis, structural determination and antibacterial activity of compounds derived from vanillin and 4-aminoantipyrine." Journal of the Serbian Chemical Society 69, no. 12 (2004): 991–98. http://dx.doi.org/10.2298/jsc0412991v.

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Schiff bases derived from 4-aminoantipyrine and vanillin were evaluated for their potential as antibacterial agents against some Gram positive and Gram negative bacterial strains. The antibacterial activity was studied against P. pseudoalcaligenes ATCC 17440, P. vulgaris NCTC 8313, C. freundii ATCC 10787 E. aerogenes ATCC 13048, S. subfava NCIM 2178 and B. megaterium ATCC 9885. The determination of the antibacterial activity was done using the Agar Ditsh method. The Schiff bases produced were: (1) 4-(4-hydroxy 3-methoxybenzylideneamino) -1,5-dimethyl-2-phenyl-1,2-dihydro-pyrazol-3-one [VV1]; (

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37

Ashok, Vipin, Nitasha Agrawal, Abhilasha Durgbanshi, Josep Esteve-Romero, and Devasish Bose. "Determination of Adulteration of Malachite Green in Green Pea and Some Prepared Foodstuffs by Micellar Liquid Chromatography." Journal of AOAC INTERNATIONAL 97, no. 5 (2014): 1387–92. http://dx.doi.org/10.5740/jaoacint.13-285.

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Abstract A simple, fast, and robust micellar LC method was developed for the separation and identification of the nonpermitted color malachite green in green pea and some ready-to-eat foodstuffs. Malachite green (4-[(4-dimethylaminophenyl) phenyl-methyl]-N,N-dimethylaniline) is a hazardous dye that is used to treat fungal and protozoan infections in fish and is a common adulterant (coloring agent) in green pea and other green vegetables because of its green color. In the present work, malachite green was determined in various foodstuffs using a direct injection technique on an RP C18 column wi

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38

Zhang, Xiaojuan, Yuan Zhao, Yuyang Jing, et al. "Modification of Silicone Hydrogel Contact Lenses with Vitamin E for the Delivery of Ofloxacin." Journal of Nanomaterials 2023 (February 9, 2023): 1–10. http://dx.doi.org/10.1155/2023/1500048.

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This study synthesized silicone hydrogel (SHL) contact lenses modified by vitamin E (VE). First, the prepolymer GKF8010, methacryloxymethyltris (trimethylsiloxy) silane, and N,N-dimethylaniline were used to synthesize SHL contact lenses through ultraviolet irradiation by using ethylene glycol dimethacrylate as crosslinker. Then, VE was combined with SHL contact lenses (VE/SHL) in ethanol solution. The obtained SHL and VE/SHL contact lenses were characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, transmittance analysis, co

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39

Odiaka, Timothy I. "Synthetic and mechanistic studies of the addition of 2,6-dimethylaniline to tricarbonyl (1–5-η-dienyl) iron(II) complexes (dienyl=C6H7 or C7H9)". Inorganica Chimica Acta 145, № 2 (1988): 267–71. http://dx.doi.org/10.1016/s0020-1693(00)83968-7.

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40

Bangash, Fatima, Sabiha Alia, and Rabia Gul. "Mechanisms of PD-L1 Regulation in Tumor Immune Ecosystem." Journal of Biomedical Research & Environmental Sciences 3, no. 8 (2022): 867–79. http://dx.doi.org/10.37871/jbres1525.

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In this study, nano-cerium dioxide doped titanium-dioxide (CeO2-TiO2) Nanocomposites (NCs) was used for the photocatalytic degradation of pollutant parameters (color, polyphenols, polyaromatics) from a textile industry wastewater (TI ww) treatment plant located in Izmir, Turkey, at different operational conditions such as at increasing photocatalytic time (0, 10, 15, 20, 30, 60, 90 and 120 min), at different CeO2-TiO2 mass ratios (1%, 3%, 5%, 10%, 15%, 16%, 25%, 30%, 50%), at the different amounts of CeO2 (1, 3, 5, 8, 10, 15, 20 and 25 mg/L) under 130 W Ultraviolet (UV) and 35 W sun lights irr

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Rukiye, Öztekin, and Sponza Delia Teresa. "Photocatalytic Degradation of Polyphenols and Polyaromatic Amines in Textile Industry Wastewaters by Nano-Cerium Dioxide Doped Titanium Dioxide and the Evaluation of Acute Toxicity Assays with Microtox and Daphnia magna." Journal of Biomedical Research & Environmental Sciences 3, no. 8 (2022): 852–66. http://dx.doi.org/10.37871/jbres1524.

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In this study, nano-cerium dioxide doped titanium-dioxide (CeO2 -TiO2 ) Nanocomposites (NCs) was used for the photocatalytic degradation of pollutant parameters (color, polyphenols, polyaromatics) from a textile industry wastewater (TI ww) treatment plant located in Izmir, Turkey, at different operational conditions such as at increasing photocatalytic time (0, 10, 15, 20, 30, 60, 90 and 120 min), at different CeO2 -TiO2 mass ratios (1%, 3%, 5%, 10%, 15%, 16%, 25%, 30%, 50%), at the different amounts of CeO2 (1, 3, 5, 8, 10, 15, 20 and 25 mg/L) under 130 W Ultraviolet (UV) and 35 W sun lights

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42

Rukiye, Öztekin. "Photocatalytic Degradation of Polyphenols and Polyaromatic Amines in Textile Industry Wastewaters by Nano-Cerium Dioxide Doped Titanium Dioxide and the Evaluation of Acute Toxicity Assays with Microtox and Daphnia magna." J Biomed Res Environ Sci 3, no. 8 (2022): 852–66. https://doi.org/10.37871/jbres1524.

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In this study, nano-cerium dioxide doped titanium-dioxide (CeO2-TiO2) Nanocomposites (NCs) was used for the photocatalytic degradation of pollutant parameters (color, polyphenols, polyaromatics) from a textile industry wastewater (TI ww) treatment plant located in Izmir, Turkey, at different operational conditions such as at increasing photocatalytic time (0, 10, 15, 20, 30, 60, 90 and 120 min), at different CeO2-TiO2 mass ratios (1%, 3%, 5%, 10%, 15%, 16%, 25%, 30%, 50%), at the different amounts of CeO2 (1, 3, 5, 8, 10, 15, 20 and 25 mg/L) under 130 W Ultraviolet (UV) and 35 W sun lights irr

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43

Velihina, Y. S., S. G. Pilyo, I. V. Ivanova, and V. S. Brovarets. "Synthesis of pyrazolo[1,5-a][1,3,5]triazine and oxazolo[4,5-d]pyrimidine derivatives and study of their vasodilator activity." Voprosy Khimii i Khimicheskoi Tekhnologii, no. 2 (May 2023): 51–60. http://dx.doi.org/10.32434/0321-4095-2023-147-2-51-60.

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A number of pyrazolo[1,5-a][1,3,5]triazine and oxazolo[4,5-d]pyrimidine derivatives were synthesized and characterized. Pyrazolo[1,5-a][1,3,5]triazines with various substituents in the fourth position and a dichloromethyl group in the second position were obtained by the heterocyclization reaction of available N-(2,2-dichloro-1-cyanoethenyl)carboxamides and 5-aminopyrazoles. Oxazolo[4,5-d]pyrimidines were obtained by treating 2-phenyl-4-dichloromethylene-1,3-oxazol-5(4H)-one with the corresponding arylamidine hydrochloride in the presence of triethylamine. The resulting 4,5-dihydro-1H-imidazol

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44

Salama, Nahla N., and Shudong Wang. "Quantitative Mass Spectrometric Analysis of Ropivacaine and Bupivacaine in Authentic, Pharmaceutical and Spiked Human Plasma without Chromatographic Separation." Analytical Chemistry Insights 4 (January 2009): ACI.S2564. http://dx.doi.org/10.4137/aci.s2564.

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The present study employs time of flight mass spectrometry for quantitative analysis of the local anesthetic drugs ropivacaine and bupivacaine in authentic, pharmaceutical and spiked human plasma as well as in the presence of their impurities 2,6-dimethylaniline and alkaline degradation product. The method is based on time of flight electron spray ionization mass spectrometry technique without preliminary chromatographic separation and makes use of bupivacaine as internal standard for ropivacaine, which is used as internal standard for bupivacaine. A linear relationship between drug concentrat

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45

Belal, Tarek S., Rasha A. Shaalan, and Rim S. Haggag. "Gradient HPLC-Diode Array Detector Stability-Indicating Determination of Lidocaine Hydrochloride and Cetylpyridinium Chloride in Two Combined Oral Gel Dosage Forms." Journal of AOAC INTERNATIONAL 94, no. 2 (2011): 503–12. http://dx.doi.org/10.1093/jaoac/94.2.503.

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Abstract A simple, rapid, and selective HPLC-diode array detector method was developed for the simultaneous determination of lidocaine hydrochloride (LD) and cetylpyridinium chloride (CPC) in two combined pharmaceutical formulations. Effective chromatographic separation was achieved on a Zorbax SB-C8 (4.6 250 mm, 5 m particle size) column with gradient elution using a mobile phase composed of 0.05 M phosphoric acid and acetonitrile. The gradient elution started with 25 (v/v) acetonitrile, ramped up linearly to 85 in 5 min, and then was constant until the end of the run. The mobile phase was pu

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46

Giorgini, Marialuce, Mercedes Taroncher, Josefa Tolosa, María-José Ruiz, and Yelko Rodríguez-Carrasco. "Amitraz and Its Metabolites: Oxidative Stress-Mediated Cytotoxicity in HepG2 Cells and Study of Their Stability and Characterization in Honey." Antioxidants 12, no. 4 (2023): 885. http://dx.doi.org/10.3390/antiox12040885.

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The population decrease of bees that has been observed in recent years due to the Varroa destructor parasite may endanger the production of bee-products whose demand is on the rise. To minimize the negative effects caused by this parasite, the pesticide amitraz is commonly used by beekeepers. Based on these, the objectives of this work are to determine the toxic effects caused by amitraz and its metabolites in HepG2 cells, as well as its determination in honey samples and the study of its stability with different heat treatments commonly used in the honey industry and its relationship with the

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47

Haffar, Djahida, Saida Mouzali, Linda Toukal, Youcef Bellal, Khadidja Boukerche, and Abd El-Aziz S. Fouda. "Investigation of the Corrosion Inhibition of Carbon Steel in Acidic Solutions by One Schiff Base: Experimental and Theoretical Studies." Acta Chimica Slovenica 72, no. 2 (2025): 291–312. https://doi.org/10.17344/acsi.2025.9151.

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Schiff base was synthesized and characterized, namely: 4-(1-(4-(dimethylamino)benzyl)-5-methyl-1H-benzo[d]imidazol-2-yl)-N,N-dimethylaniline (L). The molecular chemical structure of L was determined using 1H NMR, FT-IR, UV-Vis spectroscopy, and elemental analysis. The performance and inhibition mechanism of compound L against the corrosion of carbon steel in 1 M HCl and 0.5 M H2SO4 were studied by the weight loss method and by electrochemical techniques (Tafel polarization and electrochemical impedance spectroscopy (EIS)). Outcome data obtained from these methods displayed that with increasing

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48

Sarantou, Antonia, and Athanassios Tsipis. "Photocatalytic Reduction of CO2 into CO with Cyclometalated Pt(II) Complexes of N^C^N Pincer Dipyridylbenzene Ligands: A DFT Study." Molecules 29, no. 2 (2024): 403. http://dx.doi.org/10.3390/molecules29020403.

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In this work, density functional theory (DFT) calculations were employed to study the photocatalytic reduction of CO2 into CO using a series of Pt(II) square planar complexes with the general formula [Pt(5-R-dpb)Cl] (dpb = 1,3-di(2-pyridyl)benzene anion, R = H, N,N-dimethylaniline,T thiophene, diazaborinine). The CO2-into-CO conversion process is thought to proceed via two main steps, namely the photocatalytic/reduction step and the main catalytic step. The simulated absorption spectra exhibit strong bands in the range 280–460 nm of the UV-Vis region. Reductive quenching of the T1 state of the

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49

Law, Kock-Yee, and F. Court Bailey. "Squaraine chemistry. A new approach to symmetrical and unsymmetrical photoconductive squaraines. Characterization and solid state properties of these materials." Canadian Journal of Chemistry 71, no. 4 (1993): 494–505. http://dx.doi.org/10.1139/v93-070.

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A new approach to 1-(p-dimethylaminophenyl)-2-hydroxycyclobutene-3,4-dione (4), a precursor for the synthesis of symmetrical and unsymmetrical photoconductive squaraines, is described. In situ generation of p-nitrophenyl ketene, by the reaction of p-nitrophenylacetyl chloride and triethylamine in the presence of tetraethoxyethylene in anhydrous ether, results in a (2 + 2) cycloaddition between the ketene and the electron-rich olefin. The cycloadduct generated, 6, was hydrolyzed to give 1-(p-nitrophenyl)-2-hydroxycyclobutene-3,4-dione (5) in 51% yield. Reductive alkylation of 5 by hydrogen in t

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Chadli, R., M. Elazouzi, I. Khelladi, A. M. Elhourri, and H. Elmsellem. "Electrochemical and Theoretical Study of Pyrazole 4-(4,5-dihydro-1H-pyrazol-5-yl)-N,N-dimethylaniline (D) as a Corrosion Inhibitor for Mild Steel in 1 M HCl." Portugaliae Electrochimica Acta 35, no. 2 (2017): 65–80. http://dx.doi.org/10.4152/pea.201702065.

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