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Journal articles on the topic 'Phenylene Compounds'

Author: Grafiati

Published: 4 June 2021

Last updated: 7 September 2023

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1

Vogel, Sabine, Gottfried Huttner, and Laszlo Zsolnai. "Fünffach koordinierte Co(III)-Komplexe [Tripod-Cobalt-(ortho(X)(Y)C6H4)]+ mit ortho-phenylenverbrückten Chelatliganden [(XH)(YH)C6H4] (XH, YH = NH2, OH, SH) / Five-Coordinate Co(III) Complexes [Tripod-Cobalt-(ortho-(X)(Y)C6H4)]+ Containing ortho-Phenylene-Bridged Chelate Ligands [(XH)(YH)C6H4] (XH, YH = NH2, OH, SH)." Zeitschrift für Naturforschung B 48, no. 5 (1993): 641–52. http://dx.doi.org/10.1515/znb-1993-0514.

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The ortho-phenylene compounds ortho-[(XH)(YH)C6H4] (XH, YH = NH2, SH, OH) react with Co(BF4)2•6H2O and Tripod (CH3C(CH2PPh2)3) to give the five-coordinate Co(III) complexes [Tripod-Cobalt-(ortho-(X)(Y)C6H4)]+ (X, Y = NH, O, S), 1-6.The structures of 1—6 have been characterized by X-ray analyses of appropriate salts. The compounds have further been characterized by IR, NMR, UV-VIS and cyclovoltammetric measurements.As a compound analogous to 1—6, but containing the saturated chelate ligand [(S)C2H4(S)]2- instead of the conjugated ortho-phenylene type ligands of 1-6, [Tripod-Cobalt-((S)C2H4(S))]

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2

Caldera Villalobos, Martín, Jesús García Serrano, and Ana María Herrera González. "Synthesis, Characterization and Mesomorphic Properties of N,N'-(1,4-Phenylene(methanylylidene))bis(4-(hexyloxy)aniline)." Advanced Materials Research 976 (June 2014): 75–79. http://dx.doi.org/10.4028/www.scientific.net/amr.976.75.

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Liquid crystals (LCs) are compounds that have properties between isotropic liquids and solid crystal materials. Although there is not a parameter to predict this behavior, the liquid crystals reported until now have common characteristics, for example rigid groups such as columns or rods within its structures, and long hydrocarbon chains that give flexibility. In this work we report the synthesis and characterization of LCN,N'-(1,4-phenylene bis (methanylylidene)) bis (4-(hexyloxy) aniline). The compound was characterized by infrared (IR), raman and1H-nuclear magnetic resonance (1H-NMR) spectr

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3

Sivakumar*, Kuttiyapillai, and Dr Venkatachalam Chandrasekaran. "Trinuclear Schiff Base Complexes Containing P-Phenylene Diamine, 2, 3-Pentanedione and 3-Aminocoumarin Ligand: Synthesis, Characterization, DNA Cleavage and Antimicrobial Activity." International Journal of Innovative Technology and Exploring Engineering 9, no. 5 (2020): 2283–92. http://dx.doi.org/10.35940/ijitee.e2498.039520.

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Trinuclear Schiff base complexes were synthesized by using p-phenylene diamine, 2,3-pentanedione and 3-aminocoumarin and Cu (II), Ni (II), Mn (II), Zn(II) and Cr(III) chloride salts. The category of compound was [M3LCl6]. All trinuclear compounds were analyzed by C, H&N analysis and spectral studies. Mechanism of thermal analysis of trinuclear Schiff base metal complexes was studied. The electrophoresis data confirmed that Schiff base compounds cleaved DNA with Hydrogen peroxide. Additionally, the antibacterial action was tested by disc diffusion method. The efficiency of compounds was ass

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4

Mehenni, Hakim, Hélène Guillou, Christian Tessier, and Josée Brisson. "Effect of chain ends on the structure of aramid oligomers." Canadian Journal of Chemistry 86, no. 1 (2008): 7–19. http://dx.doi.org/10.1139/v07-132.

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Synthesis, X-ray diffraction, and Fourier transform infrared spectroscopy of aliphatic–aromatic aramid oligomers are reported with the aim of shedding light on the effect of end-chain substituent on the morphology and structure of poly(para-phenylene terephthalamide) or PPTA. Three types of X-ray powder diffraction patterns were observed: one similar to that of PPTA form I, one similar to that of PPTA form II, and an additional form never reported. Some compounds, differing by their internal distribution of amide–aromatic rings, adopt two different crystal structures, whereas compounds having

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5

Chantrell, P. G., C. A. Pearce, C. R. Toyer, and R. Twaits. "Preparation of some novel diphosphorus compounds. I. 1,4-phenylene-diphosphorus compounds." Journal of Applied Chemistry 14, no. 12 (2007): 563–64. http://dx.doi.org/10.1002/jctb.5010141206.

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6

Matsuo, Takumi, Carina Rössiger, Jasmin Herr, et al. "Synthesis and characterization of methoxy- or cyano-substituted thiophene/phenylene co-oligomers for lasing application." RSC Advances 10, no. 40 (2020): 24057–62. http://dx.doi.org/10.1039/d0ra04742b.

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7

Jabar, Maha A., and Nisreen H. Karam. "Synthesis and characterization of azo liquid crystal compounds based on 5H-Thiazolo [3,4-b][1,3,4]thiadiazole unit." Bionatura 7, no. 2 (2022): 1–4. http://dx.doi.org/10.21931/rb/2022.07.02.17.

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A calamitic symmetric liquid crystalline consisting of an azo group containing 5H-Thiazolo[3,4-b][1,3,4]thiadiazole moiety compound[III] was synthesized via sequence reactions starting from reaction terephthaldehyde with mercaptoacetic acid and thiosemicarbazide in the presence of concentrated sulfuric acid to synthesized 5,5'-(1,4-phenylene)bis(5H-thiazolo[4,3-b][1,3,4]thiadiazol-2-amine)[I] then the azo compound [II] synthesized by coupling between diazonium salt of the compound [I] with phenol at(0-4) ̊C., after that the compound [III] was synthesized by the reaction of the compound [II] wi

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8

Shaker, Raafat M. "Synthesis of 1,4-phenylene bridged bis-heterocyclic compounds." Arkivoc 2012, no. 1 (2011): 1–44. http://dx.doi.org/10.3998/ark.5550190.0013.101.

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9

Betz, Richard, and Peter Klüfers. "1-(Ylomethyl)cyclopentyl 1′,2′-phenylene orthocarbonate." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (2007): o4300. http://dx.doi.org/10.1107/s1600536807049434.

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The dispiro title compound (systematic name: 1,4,6,13-tetraoxa-2,3-benzodispiro[4.1.4.2]tridecane), C13H14O4, is an asymmetric orthocarbonic acid ester of an aromatic and an aliphatic vicinal diol. C—O bond lengths at the orthoester centre show a typical difference of about 0.06 Å, as has been observed for related spiro esters with an aliphatic component that does not impose steric strain in the vicinity of the orthocarbonic acid centre. The C—O bond-length differences are also observed in density functional theory (DFT) calculations, thus ruling out a decisive influence of intermolecular forc

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10

Dong, Hui, Li Wang, Meng Guo, et al. "Antioxidant and Anticancer Activities of Synthesized Methylated and Acetylated Derivatives of Natural Bromophenols." Antioxidants 11, no. 4 (2022): 786. http://dx.doi.org/10.3390/antiox11040786.

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Natural bromophenols are important secondary metabolites in marine algae. Derivatives of these bromophenol are potential candidates for the drug development due to their biological activities, such as antioxidant, anticancer, anti-diabetic and anti-inflammatory activity. In our present study, we have designed and synthesized a series of new methylated and acetylated bromophenol derivatives from easily available materials using simple operation procedures and evaluated their antioxidant and anticancer activities on the cellular level. The results showed that 2.,3-dibromo-1-(((2-bromo-4,5-dimeth

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11

Dhaef, Hawraa Kareem, Rafid Humaidan Al-Asadi, Ashwaq Abood Shenta, and Mohammed Khalaf Mohammed. "Novel Bis Maleimide Derivatives Containing Azo Group: Synthesis, Corrosion Inhibition, and Theoretical Study." Indonesian Journal of Chemistry 21, no. 5 (2021): 1212. http://dx.doi.org/10.22146/ijc.64614.

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Novel derivatives of heterocyclic azo compounds have been synthesized through a free catalyst reaction. The structures of the synthesized compounds were confirmed by using different techniques such as 1H-NMR, 13C-NMR, and mass spectroscopy. The prepared derivatives were evaluated as corrosion inhibitors for mild steel after the inhibitory performance toward mild steel in 0.1 M HCl solution. The prepared derivatives, i.e. (1,1'-(((1E,1'E)-1,4-Phenylenebis(diazene-2,1-diyl))bis(4-methyl-3,1-phenylene))bis(1H-pyrrole-2, 5-dione)) 1 and (1,1'-(((1Z,1'Z)-(Oxybis(4,1-phenylene))bis(diazene-2,1-diyl)

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12

Amado-Briseño, Miguel, Luis Zárate-Hernández, Karina Alemán-Ayala, et al. "Mechanosynthesis of Photochromic Oligophenyleneimines: Optical, Electrochemical and Theoretical Studies." Molecules 24, no. 5 (2019): 849. http://dx.doi.org/10.3390/molecules24050849.

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In this work, two oligophenyleneimines type pentamers with terminal aldehydes, designated as DAFCHO (4,4′-((((((2,5-bis(octyloxy)-1,4-phenylene)bis(methanylylidene))bis(azanyl ylidene))bis(9H-fluorene-7,2-diyl))bis(azanylylidene))bis(methanylylidene))bis(2,5-bis(octyloxy) benzaldehyde)) and FDACHO (4,4′-((((((2,5-bis(octyloxy)-1,4-phenylene)bis(methanylylidene))bis (azanylylidene))bis(4,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(2,5-bis(octyloxy) benzaldehyde)) were synthesized by mechanochemistry method using 2,5-bis(octyloxy) terephtal aldehyde and 2,7-diaminofluorene or 1,4-ph

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13

Stricker-Lennartz, Rainer, and H. P. Latscha. "Darstellung von m- und p-Phenylen-bis(dichlorstiban)/ Synthesis of m- and p-Phenylene-bis(dichlorostibane)." Zeitschrift für Naturforschung B 40, no. 8 (1985): 1045–48. http://dx.doi.org/10.1515/znb-1985-0810.

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AbstractThe reaction of antimony(III)-chloride with lithiumdiisopropylamide in the molar ratio 1:2 in ether gives monochloro-bis(diisopropylamino)stibane (4). m -Bromophenyl-bis(diisopropylamino)stibane (2a) is prepared by reaction of m-bromophenyllithium with 4. p-Bromophenylbis(diisopropylamino)stibane (2b) can be obtained by reaction of p-brom ophenyl-dichlorostibane with lithium-diisopropylamide, or from p-brom ophenyllithium and 4. The metal-halogen-exchange of 2a, b by butyllithium in ether gives m- or p-Lithium phenyl-bis(diisopropylamino)- stibane (3a, b), respectively. Without isolati

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14

Al-Joubory, Ahmood Kh Jebur, Rabiha Hameed Saleh, and Omar Abdulrahman Mohammed. "Synthesis and Characterization of some 2-Azetidinones Derived from 3-Nitro Phthalic Anhydride and Evaluation their Biological against Bacteria and Fungi." Materials Science Forum 1002 (July 2020): 360–68. http://dx.doi.org/10.4028/www.scientific.net/msf.1002.360.

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Reaction of the moiety 3-nitro phthalic anhydride with p- Phenylene diamine in (40 ml) acetic acid to give compound (p-amino phenyl)-3-nitro phthalimide (A1).Which that react with different aromatic aldehyde in ethanol absolute to give compounds hydrazone (A2-A5), then react this compounds (A2-A5) with chloro acetyl chloride in presence of TEA by using DMF as solvent to obtain 2-azetidinones (A6-A9).The compounds of all the newly synthesized structures were confirmed by and ,IR, 1H NMR as well as melting point. Some of these new structures showed antimicrobial activity (A7-A8) and anti-bacteri

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15

Journal, Baghdad Science. "Synthesis and Characterization of Some New Monemer and Polymers Containing Hetero Cyclic Rings With Study of Their Physical Properties." Baghdad Science Journal 13, no. 2 (2016): 172–80. http://dx.doi.org/10.21123/bsj.13.2.172-180.

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Number of new polyester and polyamide are prepared as derivatives from 5,5`-(1,4-phenylene)-bis-(1,3,4-thiadiazole-2-amine) [C1], three series of heterocyclic compounds were synthesized.The first series includes the Schiff base [C2] prepared from the reaction between compound [C1] with p-hydroxy benzaldehyde in presence of acetic acid and absolute ethanol , then these derivatives have reaction with maleic anhydride , phthalic anhydride and sodium azide, respectively to obtain the compounds [C3-5] contaning (oxazepine and tetrazole) rings.The third series of compounds [C1-5] has transformed to

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16

Wang, Wei Hong, Hong Zhong, Dan Feng Guo, and Guang Yi Liu. "Synthesis and Bioactivity of poly N-phenylene-N'-aroylthiourea." Applied Mechanics and Materials 341-342 (July 2013): 351–54. http://dx.doi.org/10.4028/www.scientific.net/amm.341-342.351.

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Three novel poly N-phenylene-N-aroylthioureas (2a~c) were synthesized by the reaction of aryldiamines with terephthaloyl diisothiocyanate. Their structures were characterized by IR spectra and 1HNMR. The preliminary biological activity tests showed that some compounds display effect in growth regulation of plants and fungicidal activity to some extent. The compound 2b has obvious growth promoting effect on Oryza sativa L.(rice), the growth promoting rate to 59.05% and 71.81% in the concentration of 10 mg·L-1 and 100 mg·L-1 respectively, and it has obvious inhibition to Echinochloa crusgalli L.

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17

Klassen, Sheri A., Richard Boehme, Sean D. Derrick, et al. "Stable phenylene- and biphenylene-bis(isobenzofuran)s related to diphenylisobenzofuran." Canadian Journal of Chemistry 87, no. 6 (2009): 738–44. http://dx.doi.org/10.1139/v09-063.

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A series of phenyl-substituted bis(isobenzofuran)s in which the furan moieties are linked by 1,3-phenylene, 1,4-phenylene, or 4,4′-biphenylene linkers have been prepared in only two steps. They are comparable to diphenylisobenzofuran in their absorption and luminescent properties, their electrochemistry, and their reactivity. Their degree of similarity to diphenylisobenzofuran was found to depend significantly on the nature of the linking group. Diels–Alder reaction of the title compounds and subsequent aromatization gave very rapid access to penta- or hexa-aryl products.

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18

Lunagariya, V. D., R. M. Desai, and V. H. Shah. "Studies on bioactive bis-1,3,5-triazinyl dithiocarbamates." Journal of the Serbian Chemical Society 72, no. 7 (2007): 635–41. http://dx.doi.org/10.2298/jsc0707635l.

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The compounds bis(4,6-dichloro/bis[(p-methoxyphenyl)amino]-1,3,5- -triazin-2-yl)1,2-hydrazine-1,2-dicarbodithioate/1,4-phenylenebis(carbamodithioate)/( 1,1?-biphenyl)-4,4?-diylbis(carbamodithioate)/(sulphonyldi-4,1-phenylene)- bis(carbamodithioate/1,2-ethanediylbis(carbamothioate) 4a-j were synthesized by two different methods. In the first method (A) for the preparation of 4a-e, 2,4,6- trichloro-1,3,5-triazine 1 was condensed with diammonium 1,2-hydrazine-1,2-dicarbodithioate/ 1,4-phenylenebis(carbamodithioate)/(1,1?-biphenyl)-4,4?diylbis(carbamodithioate)/( sulphonyl-di-4,1-phenylene)-bis(ca

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19

Wołek, Barbara, Marcin Świątkowski, and Agnieszka Kudelko. "Palladium-Catalyzed Synthesis of Novel Quinazolinylphenyl-1,3,4-thiadiazole Conjugates." Catalysts 12, no. 12 (2022): 1586. http://dx.doi.org/10.3390/catal12121586.

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Two novel series of symmetrical and unsymmetrical conjugates, in which 1,3,4-thiadiazole and 4-N,N-dimethylaminoquinazoline scaffolds were connected via 1,4-phenylene linker, were synthetized in high yields by Suzuki cross-coupling reactions. The elaborated protocol makes use of bromo-substituted quinazolines, boronic acid pinacol ester or diboronic acid bis(pinacol)ester of 2,5-diphenyl-1,3,4-thiadiazole, catalytic amounts of [1,10-bis(diphenylphosphino)ferrocene]dichloropalladium(II) Pd(dppf)Cl2, sodium carbonate, and tetrabutylammonium bromide, which plays the role of a phase-transfer catal

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20

Arshad, Nasima, Uzma Parveen, Pervaiz Ali Channar, et al. "Investigation of Newly Synthesized Bis-Acyl-Thiourea Derivatives of 4-Nitrobenzene-1,2-Diamine for Their DNA Binding, Urease Inhibition, and Anti-Brain-Tumor Activities." Molecules 28, no. 6 (2023): 2707. http://dx.doi.org/10.3390/molecules28062707.

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Bis-acyl-thiourea derivatives, namely N,N’-(((4-nitro-1,2-phenylene)bis(azanediyl)) bis(carbonothioyl))bis(2,4-dichlorobenzamide) (UP-1), N,N’-(((4-nitro-1,2-phenylene) bis(azanediyl))bis(carbonothioyl))diheptanamide (UP-2), and N,N’-(((4-nitro-1,2-phenylene)bis(azanediyl))bis(carbonothioyl))dibutannamide (UP-3), were synthesized in two steps. The structural characterization of the derivatives was carried out by FTIR, 1H-NMR, and 13C-NMR, and then their DNA binding, anti-urease, and anticancer activities were explored. Both theoretical and experimental results, as obtained by density functiona

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21

Athraa J. Ali and Nisreen H. Karam. "Design of New V Shaped Thermotropic Liquid Crystals containing Heterocyclic." Ibn AL-Haitham Journal For Pure and Applied Sciences 36, no. 2 (2023): 251–58. http://dx.doi.org/10.30526/36.2.3046.

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The characterization and design of this study of new liquid crystals with a V shape compounds containing thiazolidine-2,4-dione and 1,3-phenylene as a core unite with mesophase properties were reported. Preparation and characterization of chloroacetic acid, water, and thiourea to produce thiazolidine-2,4-dione [I] in the presence of strong hydrochloric acid. The 4-hydreoxybenzaldehyde and n-alkyl bromide were reacted with potassium hydroxide to create the n-alkoxy benzaldehyde., then the compound [I] reacted with [II]n in presence of piperidine to produce compounds [III]n. Also, converted reso

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22

Vasantha T S, Shankar Mani, T. Yunus Pasha, and B. Ramesh. "A comprehensive review on 2-substituted benzimidazole derivatives and its biological importance." International Journal of Scholarly Research and Reviews 2, no. 2 (2023): 122–34. http://dx.doi.org/10.56781/ijsrr.2023.2.2.0032.

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Condensation of o-phenylene-diamine with formic acid is used in the synthesis of commercially available benzimidazole. N-ribosyldimethyl benzimidazole is the most common benzimidazole compound found in nature, and it functions as an axial ligand for cobalt in vitamin B12. The benzimidazole and its derivatives are important therapeutic agents, such as antiulcer and anthelmintic drugs. Benzimidazole compounds also possess antimicrobial, antiviral, anticancer, anti-inflammatory, analgesic, and other pharmacological properties. The chemistry and pharmacological actions of substituted benzimidazole

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23

Musso, G. F., P. Piaggio, G. Dellepiane, C. Cuniberti, and A. Borghesi. "Defect states in poly(para-phenylene) sulfide model compounds." Synthetic Metals 48, no. 3 (1992): 283–94. http://dx.doi.org/10.1016/0379-6779(92)90231-7.

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24

Mohammed, Samar M., Wesam S. Shehab, Abdul-Hamid M. Emwas, et al. "Eco-Friendly Synthesis of 1H-benzo[d]imidazole Derivatives by ZnO NPs Characterization, DFT Studies, Antioxidant and Insilico Studies." Pharmaceuticals 16, no. 7 (2023): 969. http://dx.doi.org/10.3390/ph16070969.

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Benzimidazoles are classified as a category of heterocyclic compounds. Molecules having benzimidazole motifs show promising utility in organic and scientific studies. A series of mono-substituted benzimidazoles were synthesized by ZnO-NPs via cyclocondensation between substituted aromatic aldehydes and o-phenylene diamine. The synthesized compounds were characterized and compared with the traditional methods. The nano-catalyzed method displayed a higher yield, shorter time and recyclable catalyst. The DFT study and antioxidant activity were investigated for benzo[d]imidazole derivatives. Compo

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25

Glöcklhofer, Florian, Johannes Fröhlich, Berthold Stöger, and Matthias Weil. "Crystal structures of 2,5-diazido-1,4-phenylene diacetate and 2,5-diazido-1,4-phenylene dibutyrate." Acta Crystallographica Section E Structure Reports Online 70, no. 7 (2014): 39–42. http://dx.doi.org/10.1107/s1600536814013762.

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The asymmetric units of the title compounds, C10H8N6O4, (I), and C14H16N6O4, (II), each contain half of the respective molecule which is completed by inversion symmetry. The two molecules differ in the ester moiety (acetateversusbutyrate) and the crystal symmetry is different,i.e.triclinic for (I) and monoclinic for (II). The diazidophenylene moieties are essentially planar [maximum deviation of 0.0216 (7) Å for (I) and 0.0330 (14) Å for (II)], and the ester functionalities are almost perpendicular to these planes, making dihedral angles of 79.93 (3)° for (I) and 79.42 (6)° for (II). In the cr

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26

Prokop, Petra, Rainer Richter, and Lothar Beyer. "Zur Reaktion von 2,4-Dioxo-4-ferrocenyl-butansäureethylester mit primären aromatischen Aminen / On the Reaction of Ethyl 2,4-Dioxo-4-ferrocenyl-butanoate with Primary Aromatic Amines." Zeitschrift für Naturforschung B 54, no. 7 (1999): 849–57. http://dx.doi.org/10.1515/znb-1999-0705.

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Starting from ethyl 2,4-dioxo-4-ferrocenyl-butanoate (1) a series of new ferrocene derivatives has been prepared. While the reaction with o-phenylene diamine leads to two ferrocene-containing heterocyclic compounds, 4-ferrocenyl-3H-1,5-benzodiazepine-2-carbonic acid ethyl ester (3) and 3-(2-ferrocenyl-2-oxo-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one · H20 (4), reactions with m- and p-phenylene diamine give both the mono- and disubstituted products 5 - 8, respectively. The conversion of 4 by Lawesson’s reagent results in 2-ferrocenvl-thieno[2,3- b]quinoxaline (9). The new compounds have been c

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27

Sim, Aijia, C. S. Chidan Kumar, Huey Chong Kwong та ін. "Three closely related (2E,2′E)-3,3′-(1,4-phenylene)bis[1-(methoxyphenyl)prop-2-en-1-ones]: supramolecular assemblies in one dimension mediated by hydrogen bonding and C—H...π interactions". Acta Crystallographica Section E Crystallographic Communications 73, № 6 (2017): 896–900. http://dx.doi.org/10.1107/s2056989017007460.

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In the title compounds, (2E,2′E)-3,3′-(1,4-phenylene)bis[1-(2-methoxyphenyl)prop-2-en-1-one], C26H22O4(I), (2E,2′E)-3,3′-(1,4-phenylene)bis[1-(3-methoxyphenyl)prop-2-en-1-one], C26H22O4(II) and (2E,2′E)-3,3′-(1,4-phenylene)bis[1-(3,4-dimethoxyphenyl)prop-2-en-1-one], C28H26O6(III), the asymmetric unit consists of a half-molecule, completed by crystallographic inversion symmetry. The dihedral angles between the central and terminal benzene rings are 56.98 (8), 7.74 (7) and 7.73 (7)° for (I), (II) and (III), respectively. In the crystal of (I), molecules are linked by pairs of C—H...π interactio

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28

Huang, Chao, Ruyu Wang, Xi Shu, et al. "Crystal structures of the 2:2 complex of 1,1′-(1,2-phenylene)bis(3-m-tolylurea) and tetrabutylammonium chloride or bromide." Acta Crystallographica Section E Crystallographic Communications 73, no. 9 (2017): 1316–19. http://dx.doi.org/10.1107/s2056989017009951.

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The title compounds, tetrabutylammonium chloride–1,1′-(1,2-phenylene)bis(3-m-tolylurea) (1/1), C16H36N+·Cl−·C22H22N4O2or [(n-Bu4N+·Cl−)(C22H22N4O2)] (I) and tetrabutylammonium bromide–1,1′-(1,2-phenylene)bis(3-m-tolylurea) (1/1), C16H36N+·Br−·C22H22N4O2or [(n-Bu4N+·Br−)(C22H22N4O2)] (II), both comprise a tetrabutylammonium cation, a halide anion and anortho-phenylene bis-urea molecule. Each halide ion shows four N—H...X(X= Cl or Br) interactions with two urea receptor sites of different bis-urea moieties. A crystallographic inversion centre leads to the formation of a 2:2 arrangement of two ha

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29

Shibata, Takanori, Toshifumi Uchiyama, Hiroyuki Hirashima, and Kohei Endo. "Enantioselective construction of new chiral cyclic scaffolds using [2 + 2 + 2] cycloaddition." Pure and Applied Chemistry 83, no. 3 (2011): 597–605. http://dx.doi.org/10.1351/pac-con-10-09-03.

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Two types of enantioselective [2 + 2 + 2] cycloadditions of triynes using chiral rhodium catalysts are disclosed. The intramolecular reaction of ortho-aminophenol-tethered triynes provides chiral tripodal compounds. Consecutive inter- and intramolecular reactions of ortho-phenylene-tethered triynes provide chiral tetraphenylenes.

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30

Pappas, Harry C., Rina Sylejmani, Matthew S. Graus, Patrick L. Donabedian, David G. Whitten та Aaron K. Neumann. "Antifungal Properties of Cationic Phenylene Ethynylenes and Their Impact on β-Glucan Exposure". Antimicrobial Agents and Chemotherapy 60, № 8 (2016): 4519–29. http://dx.doi.org/10.1128/aac.00317-16.

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ABSTRACTCandidaspecies are the cause of many bloodstream infections through contamination of indwelling medical devices. These infections account for a 40% mortality rate, posing a significant risk to immunocompromised patients. Traditional treatments againstCandidainfections include amphotericin B and various azole treatments. Unfortunately, these treatments are associated with high toxicity, and resistant strains have become more prevalent. As a new frontier, light-activated phenylene ethynylenes have shown promising biocidal activity against Gram-positive and -negative bacterial pathogens,

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31

Glang, Stefan, Dorothee Borchmann, Thorsten Rieth та Heiner Detert. "Tristriazolotriazines with π-Conjugated Segments: Star-Shaped Fluorophors and Discotic Liquid Crystals". Advances in Science and Technology 77 (вересень 2012): 118–23. http://dx.doi.org/10.4028/www.scientific.net/ast.77.118.

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C3-symmetrical tristriazolotriazines substituted with phenylene rings carrying lateral flexible alkoxy side chains were prepared via condensation/ring transformation of cyanuric chloride and tetrazoles. These star-shaped, planar compounds can form broad thermotropic mesophases. Due to the extensive π-conjugation, these compounds are highly emissive and the octupolar donor-acceptor electronic structure results in non-linear optical properties like solvatochromism. Brønstedt acids provoke halochromism of the absorption and of the fluorescence.

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32

Journal, Baghdad Science. "Synthesis and Characterization of New Polymer from Bisacodyl A." Baghdad Science Journal 13, no. 2 (2016): 181–87. http://dx.doi.org/10.21123/bsj.13.2.181-187.

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A new series polymers was synthesized from reaction starting material Bisacodyl A or [(2-Pyridinylmethylene) di-4, 1-phenylene di acetate] with hydrogen bromide, then the products were polymerized by addition polymerization from used adipoyl and glutaroyl chloride. The structure of these compounds was characterized by FT-IR, melting points, TLC, X-Ray, DSC and 1H-NMR for starting material. These compounds were also screened for their antibacterial activists?

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33

Kumar, Ravindra, and Y. K. Srivastava. "Microwave Induced Synthesis and Antimicrobial Activities of Some Derivatives of 3, 5-Diaryl-2-pyrazoline-1-carbaldehyde." E-Journal of Chemistry 7, no. 2 (2010): 496–500. http://dx.doi.org/10.1155/2010/160570.

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3, 5-Diaryl-2-pyrazoline-1-carbaldehyde(1)was condensed with hydrazine hydrate ando-phenylene diamine to afford corresponding hydrazones(2)and 3-benzimidazolyl-3, 5-diaryl-2-pyrazoline respectively under MWI condition. The newly synthesized compounds have been screened for their antibacterial activityin vitro.

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34

Mohammed Abduljleel, Abduljleel, Jassim Mohammed Saleh Alshawi, kawkab Ali Hussein, and Sadiq M.-H. Ismael. "Synthesis, characterization, biological studies and DFT study of Schiff Bases and their complexes derived from aromatic diamine compounds with cobalt (II)." Bionatura 8, no. 1 (2023): 1–9. http://dx.doi.org/10.21931/rb/2023.08.01.61.

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Based on vanillin and diamine compounds (ortho phenylene diamine, meta phenylene diamine, 3,4- diamine toluene), derivation of two new Schiff base ligands (L1 and L2) was done, after which synthesis and treatment with Co (II) chloride was performed at a metal-to-ligand ratio of 1:1 to get two new complexes, i.e. [CoL3(H2O)2]Cl2 and [CoL1(H2O)2]Cl2. These complexes and ligands were characterized by employing NMR, IR, atomic absorption, UV visible absorption, molecular weight determination, molar conductance, and magnetic measurement techniques. As per the data, the ligands were found to be bide

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35

Gao, Wentao, Yang Li, and Feng Li. "Novel Synthesis of 1,4-Phenylene Bridged Bis-Heterocyclic Tropone Compounds." HETEROCYCLES 85, no. 4 (2012): 911. http://dx.doi.org/10.3987/com-12-12431.

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36

Cheng, Xiao Hong, Stefan-Sven Jester, and Sigurd Höger. "Synthesis and Aggregates of Phenylene−Ethynylene Substituted Polycyclic Aromatic Compounds." Macromolecules 37, no. 19 (2004): 7065–68. http://dx.doi.org/10.1021/ma048728d.

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WEJCHAN-JUDEK, MARIA, and BARBARA PIERKOWSKA-SPIEWAK. "Sulfur compounds as modifiers in poly(1,4-phenylene sulfide) coatings." Polimery 45, no. 01 (2000): 46–49. http://dx.doi.org/10.14314/polimery.2000.046.

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38

Shaker, Raafat M. "ChemInform Abstract: Synthesis of 1,4-Phenylene-bridged Bis-Heterocyclic Compounds." ChemInform 43, no. 7 (2012): no. http://dx.doi.org/10.1002/chin.201207259.

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39

Özaytekin, İlkay, and Ibrahim Karataş. "Synthesis of 2,2′-(p-phenylene)bisbenzazoles compounds from terephthalohydroxamoyl chloride." Journal of Heterocyclic Chemistry 42, no. 7 (2005): 1283–87. http://dx.doi.org/10.1002/jhet.5570420706.

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40

Dasari, Ramachandraiah, Gangadhar Thalari, Jayaprakash Rao Yerrabelly, and Prasad Rao Chitneni. "Synthesis and Antimicrobial Activity of 2-(4-Phenyl-2H-chromen-3-yl)-1H-benzo[d]imidazole." Asian Journal of Chemistry 33, no. 8 (2021): 1723–28. http://dx.doi.org/10.14233/ajchem.2021.23180.

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A new series of 4-phenyl-2H-chromene-3-benzimidazoles (8a-o) were synthesized by the condensation of 4-phenyl-2H-chromene-3-carbaldehyde with o-phenylene diamines. The products were purified through column chromatography and structures of these compounds were characterized by IR, 1H & 13C NMR and mass spectral data. All the final compounds were screened for their antimicrobial activity and their efficacy were matched with ciprofloxacin. Five compounds (8b, 8d, 8i, 8l and 8o) were found to be most effective compounds of this series and with activities improved than ciprofloxacin under the t

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41

Miura, Yozo, Hiroyuki Oka, and Masanori Morita. "Syntheses and Characterization of Poly(1,3-phenylene-2-amino-1,3-phenylene)s and Dimer and Tetramer Model Compounds." Macromolecules 31, no. 7 (1998): 2041–46. http://dx.doi.org/10.1021/ma971593+.

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42

Ul Bari, Wasim, Najeeb Ur Rehman, Ajmal Khan, et al. "Bio-Potency and Molecular Docking Studies of Isolated Compounds from Grewia optiva J.R. Drumm. ex Burret." Molecules 26, no. 7 (2021): 2019. http://dx.doi.org/10.3390/molecules26072019.

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In the study, two novel compounds along with two new compounds were isolated from Grewia optiva. The novel compounds have never been reported in any plant source, whereas the new compounds are reported for the first time from the studied plant. The four compounds were characterized as: 5,5,7,7,11,13-hexamethyl-2-(5-methylhexyl)icosahydro-1H-cyclopenta[a]chrysen-9-ol (IX), docosanoic acid (X), methanetriol mano formate (XI) and 2,2’-(1,4-phenylene)bis(3-methylbutanoic acid (XII). The anticholinesterase, antidiabetic, and antioxidant potentials of these compounds were determined using standard p

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43

Yuosra Khalaf Alasadi, Fawzi Hameed Jumaa, Mohammed Ghanam Mukhlif, and , Safa Mahmood Shawkat. "Preparation, Characterization, Anti-cancer and Antibacterial Evaluation of New Schiff base and Tetrazole Derivatives." Tikrit Journal of Pure Science 28, no. 2 (2023): 12–19. http://dx.doi.org/10.25130/tjps.v28i2.1333.

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This work involved the synthesis of tetrazole derivatives 4,4'-(((sulfonylbis(4,1-phenylene))bis(diazene-2,1-dil))bis(2-(1-(4-R)phenyl]-4),5-Dihydro-1H-tetrazol-5-yl(phenol) (where R = OH or OCH3) through the reaction of the substituted amine in THF as a solvent, with sodium azide. FT-IR 1H-NMR Spectrophotometric methods were used to characterize the prepared compounds, the antibacterial activity against four types of bacteria have been studied where it has been proven that tetrazole compounds are more effective than the compounds from which it was derived, and the anticancer activity measured

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44

Saaid, Faiq H., Shatha J. Dawood, and Bushra H. Marbeen. "Synthesis and Characterization of 1,3,4- oxadiazole Derivatives using an Ultrasonic Technique." Al-Mustansiriyah Journal of Science 29, no. 2 (2018): 101. http://dx.doi.org/10.23851/mjs.v29i2.183.

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In the present study, a new of 1,3,4-oxadizole derivatives(4a1,4a2,4b1,4b2) were synthesized using an ultrasonic technique. Benzohydrazine and its substituted (2a, 2b) were obtained from the reaction of hydrazin with benzoylchloride and its substituted (1a, 1b). Compounds (2a, 2b) react with chloroacetic acid to form compounds (3a,3b) which react with p-phenylene diamine and hydrazine in presence of DMSO as a solvent to obtain new compounds (4a1,4a2, 4b1,4b2) by ultrasonic technique. The structures of the synthesized compounds were elucidated by spectral data: infrared spectra (FT-IR) an

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45

Wołek, Barbara, Mateusz Werłos, Magdalena Komander, and Agnieszka Kudelko. "Efficient Synthesis of Novel 1,3,4-Oxadiazoles Bearing a 4-N,N-Dimethylaminoquinazoline Scaffold via Palladium-Catalyzed Suzuki Cross-Coupling Reactions." Molecules 25, no. 21 (2020): 5150. http://dx.doi.org/10.3390/molecules25215150.

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Two series of novel (symmetrical and unsymmetrical) quinazolinylphenyl-1,3,4-oxadiazole derivatives were synthesized using palladium-catalyzed Suzuki cross-coupling reactions. The presented synthetic methodology is based on the use of bromine-substituted 2-phenyl-4-N,N-dimethylaminoquinazolines and either a boronic acid pinacol ester or a diboronic acid bis(pinacol) ester of 2,5-diphenyl-1,3,4-oxadiazole. The reactions are conducted in a two-phase solvent system in the presence of catalytic amounts of [1,1′-bis(diphenylphosphino)ferrocene]-dichloropalladium(II), sodium carbonate, and tetrabuty

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46

Kumar, Sanjiv, Balasubramanian Narasimhan, Siong Meng Lim, Kalavathy Ramasamy, Vasudevan Mani, and Syed Adnan Ali Shah. "Design, Synthesis and Therapeutic Potential of Some 6, 6'-(1,4- phenylene)bis(4-(4-bromophenyl)pyrimidin-2-amine)analogues." Mini-Reviews in Medicinal Chemistry 19, no. 7 (2019): 609–21. http://dx.doi.org/10.2174/1389557519666181210162413.

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<P>Background: A series of 6, 6'-(1,4-phenylene)bis(4-(4-bromophenyl)pyrimidin-2-amine) derivatives has been synthesized by Claisen-Schmidt condensation and its chemical structures was confirmed by FT-IR, 1H/13C-NMR spectral and elemental analyses. The molecular docking study was carried out to find the interaction between active bis-pyrimidine compounds with CDK-8 protein. The in vitro antimicrobial potential of the synthesized compounds was determined against Gram-positive and Gram-negative bacterial species as well fungal species by tube dilution technique. Antimicrobial results indic

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47

Verma, Roli, Kirti Srivastava, R. S. Jagadish, and Rama Dubey. "SYNTHESIS AND CHARACTERIZATION OF PSEUDO LADDER MONO HYDROXY PENDANT POLYBENZOBISTHIAZOLE AROMATIC HETERO-CYCLIC THERMOPLASTIC POLYMER." RASAYAN Journal of Chemistry 16, no. 02 (2023): 964–71. http://dx.doi.org/10.31788/rjc.2023.1628360.

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Anisotropic polymerization of 5-hydroxy isophthalic acid and isophthalic acid with 2,5-diamino 1,4-benzene dithiol dihydrochloride (DABDT.2 HCl) affords the polymer poly {[benzo (1,2-d: 4,5-d’) bisthiazole-2, 6 diyl]-1,3 phenylene} and poly {[benzo (1,2-d: 4,5-d’) bisthiazole-2, 6 diyl]-1,3(5-hydroxy phenylene)}. Both the polymers were soluble in methanesulphonic acid and chlorosulphonic acid. The polybenzobisthiazoles do not show any glass transition temperature (Tg) by DSC analysis. The polybenzobisthiazoles were stable up to 400oC in a nitrogen environment, according to thermo gravimetric m

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48

Harsha, Kachigere B., Chandagirikoppal V. Kavitha, Toreshettahally R. Swaroop, Shobith Rangappa, and Kanchugarakoppal S. Rangappa. "A Green Synthesis of 1,5-Benzodiazepines using Reusable-Heterogeneous Silica Sulfuric Acid Catalyst under Solvent-Free Conditions and their Antileukemic Activity." Asian Journal of Chemistry 33, no. 5 (2021): 1006–12. http://dx.doi.org/10.14233/ajchem.2021.23103.

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1,5-Benzodiazepine derivatives are readily assembled from o-phenylene diamine and ketones containg α-hydrogen atoms by means of simple cyclocondensation via sp3 C-H activation promoted by an efficient heterogeneous silica sulfuric acid catalyst. Eco-friendliness, good yields, easy workup, reusable catalyst, short reaction times, high atom economy and solvent-free conditions are the noteworthy features of this protocol. These benzodiazepines are chosen for the evaluation of antiproliferative activity against different leukemia cell lines. Among the investigated compounds, 3g is the best antipro

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49

Malafaia, Daniela, Joana L. C. Sousa, Artur M. S. Silva, and Hélio M. T. Albuquerque. "2,2’-[(1E,1’E)-{[Hexa-2,4-diyne-1,6-diylbis(oxy)]bis(2,1-phenylene)}bis(ethene-2,1-diyl)]bis(4H-chromen-4-one)." Molbank 2023, no. 2 (2023): M1621. http://dx.doi.org/10.3390/m1621.

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2-Styrylchromones (2-SCs) are interesting compounds for their biological properties as well as versatility as starting materials for further transformations. Herein, we disclose a new 2-SC derivative—2,2’-[(1E,1’E)-{[hexa-2,4-diyne-1,6-diylbis(oxy)]bis(2,1-phenylene)}bis(ethene-2,1-diyl)]bis(4H-chromen-4-one)—which is a dimeric compound formed by two units of 2-SC linked through a 1,3-diyne moiety. It was obtained in excellent yield (96%) through the copper-catalyzed homocoupling of two molecules of O-propargyl-2-SC. Its structure was unveiled by 1D (1H and 13C) and 2D (HSQC and HMBC) NMR tech

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50

Nagel, Norbert, Hans Bock, and Peter Eller. "Dimorphism and inclusion compounds of N,N′-di(benzenesulfonyl)-p-phenylenediamine." Acta Crystallographica Section B Structural Science 56, no. 2 (2000): 234–44. http://dx.doi.org/10.1107/s0108768199005790.

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Crystal structures of a new polymorph of N,N′-(p-phenylene)bis(benzenesulfonamide) (C18H16N2O4S2) and of two inclusion compounds with acetone [(CH3)2CO] and dimethylsulfoxide [2(CH3)2SO], respectively, have been determined at 150 K. For a more reliable comparison, the structure of the already known polymorph of N,N′-di(benzenesulfonyl)-p-phenylenediamine has been redetermined under identical conditions. In addition, the phase transformation behavior has been examined by differential scanning calorimetry and the crystallization conditions of both polymorphs including their formation by weatheri

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