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Relevant bibliographies by topics / Ring-fused aromatic compound

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Journal articles

Academic literature on the topic 'Ring-fused aromatic compound'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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Journal articles on the topic "Ring-fused aromatic compound"

1

Skelton, Brian W., and Allan H. White. "7-Methoxyanthra[1,9-de]-1,3,2-dioxathiine-8,11-dione 2,2-dioxide." Acta Crystallographica Section C Crystal Structure Communications 59, no. 11 (2003): o609—o610. http://dx.doi.org/10.1107/s0108270103020420.

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2

Racha, Hanumandlu, Balakishan Vadla, Kavitha Peddolla, and Sailu Betala. "Synthesis and Anticancer Activity of Novel Hetero Ring Fused Pyridine Amide Derivatives." Asian Journal of Chemistry 31, no. 11 (2019): 2485–91. http://dx.doi.org/10.14233/ajchem.2019.22150.

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A series of novel hetero ring fused pyridine amide derivatives were prepared starting from ethyl furo[2,3-b]pyridine-2-carboxylate (3) on reaction with ammonia to afford furo[2,3-b]pyridine-2-carboxamide (4), compound 4 on reaction with trifluoroacetic acid to give compound 5, which on reaction with bromoethyl acetate followed by hydrazine hydrate to give compound 7. Compound 7 when reacted with different substituted aromatic aldehydes to give Schiff base compounds (8a-l). Similarly, compound 6a when reacted with diverse substituted aliphatic amines to give amide derivatives (9a-h). All the sy

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3

Ishikawa, Yoshinobu. "Crystal structure of 3-acetyl-4H-chromen-4-one." Acta Crystallographica Section E Crystallographic Communications 71, no. 7 (2015): o527. http://dx.doi.org/10.1107/s2056989015012098.

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In the title compound, C11H8O3, the fused-ring system is almost planar (r.m.s. deviation = 0.020 Å), with the largest deviation from the least-squares plane [0.0462 (17) Å] being for a pyran C atom. The dihedral angle between the plane of the fused-ring system and acetyl plane is 5.149 (16)°. In the crystal, the fused rings are linked by aromatic π–π stacking interactions [centroid–centroid distance between the benzene and pyran rings = 3.643 (6) Å] and C—H...O hydrogen bonds, generating a three-dimensional network.

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4

Wang, Xiao-Bing, and Ling-Yi Kong. "2-(2-Chlorophenyl)-7-methyl-4H-chromen-4-one." Acta Crystallographica Section E Structure Reports Online 63, no. 11 (2007): o4340. http://dx.doi.org/10.1107/s1600536807050155.

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The title compound, C16H11ClO2, is a synthetic flavonoid. The fused-ring system is almost planar, with a mean deviation from the least-squares plane of 0.0204 (2) Å. The dihedral angle between the chromene group and the chlorophenyl ring is 50.9 (6)°, due to unfavourable steric interactions with the Cl atom. Aromatic π–π stacking interactions between the fused benzene (π-rich) and pyran (π-deficient) rings are observed, with a centroid–centroid distance of 3.578 Å.

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5

Hammam, Abou Elfatooh G., Nagla A. Abd El-hafeza, Wanda H. Midurab, and Marian Mikołajczyk. "Chemistry of Seven-Membered Heterocycles, VI. Synthesis of Novel Bicyclic Heterocyclic Compounds as Potential Anticancer and Anti-HIV Agents." Zeitschrift für Naturforschung B 55, no. 5 (2000): 417–24. http://dx.doi.org/10.1515/znb-2000-0511.

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Several new pyridines, pyridones and pyrans fused to benzothiepine or benzoheptene ring were synthesized as potential anticancer and anti-HIV agents. The fused-ring pyridines 6. 7 and 17-19 were obtained via the reaction of the seven-membered ring ketones 1, 2 and 3 with an arylidene-malononitrile and by treatment of the ylidenemalononitriles 14, 15 and 16 with aromatic aldehydes, respectively. The corresponding pyridones 11, 12 and 13 were prepared from the ketones 1, 2 and 3 and arylmethylenecyanoacetamide. The synthesis of the fused-ring pyranes 8 and 9 involved the condensation of the keto

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6

Bakhouch, Mohamed, Ghali Al Houari, Mohamed El Yazidi, Mohamed Saadi, and Lahcen El Ammari. "Ethyl 2-amino-4-(3-nitrophenyl)-4H-1-benzothieno[3,2-b]pyran-3-carboxylate." Acta Crystallographica Section E Structure Reports Online 70, no. 5 (2014): o587. http://dx.doi.org/10.1107/s1600536814008538.

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The molecule of the title compound, C20H16N2O5S, is built up by one fused five-membered and two fused six-membered rings linked to ethoxycarbonyl and 3-nitrophenyl groups. The benzothienopyran ring system is nearly planar (r.m.s deviation = 0.0392 Å) and forms a dihedral angle of 86.90 (6)° with the aromatic ring of the nitrobenzene group. In the crystal, molecules are linked by N—H...O hydrogen bonds and by π–π interactions between the phenyl ring and the six-membered heterocyle [intercentroid distance = 3.5819 (8) Å], forming a three-dimensional network.

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7

Faizi, Md Serajul Haque, Akram Ali, and Vadim A. Potaskalov. "Crystal structure of 9,9′-{(1E,1′E)-[1,4-phenylenebis(azanylylidene)]bis(methanylylidene)}bis(2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinolin-8-ol)." Acta Crystallographica Section E Crystallographic Communications 72, no. 10 (2016): 1366–69. http://dx.doi.org/10.1107/s205698901601344x.

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The whole molecule of the title compound, C32H34N2O2, is generated by inversion symmetry; the central benzene ring being situated about the crystallographic inversion center. The aromatic ring of the julolidine moiety is inclined to the central benzene ring by 33.70 (12)°. There are two intramolecular O—H...N hydrogen bonds in the molecule, generatingS(6) ring motifs. The conformation about the C=N bonds isE. The fused non-aromatic rings of the julolidine moiety adopt half-chair conformations. In the crystal, adjacent molecules are linked by pairs of C—H...π interactions, forming a ladder-like

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8

Parikh, D., and P. J. Phillips. "Compound formation in binary mixtures of polyethylene with fused-ring aromatic molecules." Polymer 30, no. 4 (1989): 705–9. http://dx.doi.org/10.1016/0032-3861(89)90159-6.

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9

Liu, Dong-Ming, Xiu-Ying Li, Xiang-Cheng Wang, Chun-Xiang Li, and Chun-Bo Liu. "2-Phenyl-1H-1,3,7,8-tetraazacyclopenta[l]phenanthrene." Acta Crystallographica Section E Structure Reports Online 65, no. 6 (2009): o1308. http://dx.doi.org/10.1107/s1600536809017498.

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There are two molecules in the asymmetric unit of the title compound, C19H12N4, with dihedral angles of 2.41 (10) and 10.53 (12)° between the fused ring system and the pendant phenyl ring. In the crystal, molecules are linked into chains by N—H...N hydrogen bonds and aromatic π–π stacking interactions [shortest centroid–centroid distance = 3.6176 (16) Å] complete the structure.

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10

Yennawar, Hemant P., Harnoor Singh, and Lee J. Silverberg. "2,3-Diphenyl-2,3-dihydro-4H-pyrido[3,2-e][1,3]thiazin-4-one." Acta Crystallographica Section E Structure Reports Online 70, no. 6 (2014): o638. http://dx.doi.org/10.1107/s1600536814009714.

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In the racemic title compound, C19H14N2OS, the two phenyl substituents on the 1,3-thiazine ring are almost perpendicular to the pyridine ring which is fused to the thiazine ring [inter-ring dihedral angles = 87.90 (8) and 85.54 (7)°]. The dihedral angle between the two phenyl rings is 75.11 (7)°. The six-membered thiazine ring has an envelope conformation with theortho-related C atom forming the flap. The crystals exhibit face-to-edge aromatic-ring interactions with the nearest C—H...C distance equal to 3.676 (3) Å.

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