To see the other types of publications on this topic, follow the link: Phenanthrene derivative.

Journal articles on the topic 'Phenanthrene derivative'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Phenanthrene derivative.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Bús, Csaba, Norbert Kúsz, Annamária Kincses, et al. "Antiproliferative Phenanthrenes from Juncus tenuis: Isolation and Diversity-Oriented Semisynthetic Modification." Molecules 25, no. 24 (2020): 5983. http://dx.doi.org/10.3390/molecules25245983.

Full text
Abstract:
The occurrence of phenanthrenes is limited in nature, with such compounds identified only in some plant families. Phenanthrenes were described to have a wide range of pharmacological activities, and numerous research programs have targeted semisynthetic derivatives of the phenanthrene skeleton. The aims of this study were the phytochemical investigation of Juncus tenuis, focusing on the isolation of phenanthrenes, and the preparation of semisynthetic derivatives of the isolated compounds. From the methanolic extract of J. tenuis, three phenanthrenes (juncusol, effusol, and 2,7-dihydroxy-1,8-di
APA, Harvard, Vancouver, ISO, and other styles
2

P., L. Majumder, Bandyopadhyay (nee Guha) Saswati, and Pal (nee Ray) Suparna. "Rigidanthrin, a new dimeric phenanthrene derivative of the orchid Bulbophyllum rigidum." Journal of Indian Chemical Society Vol. 85, Nov 2008 (2008): 1116–23. https://doi.org/10.5281/zenodo.5820345.

Full text
Abstract:
Department of Chemistry, University College of Science, 92, Acharya Prafulla Chandra Road, Kolkata-700 009, India <em>E-mail </em>: priyalalm@hotmail.com <em>Manuscript received 15 September 2008, accepted 30 September 2008</em> Rigidanthrin, a new dimeric phenanthrene derivative, was isolated from the orchid Bulbophyllum rigidum which also afforded the known monomeric phenanthrenes nudol and gymnopusin and the simple aromatic compound ethyl 4-hydroxy-3-methoxycinnamate. The structure of rigidanthrin was established as 2,2&#39;, 7, 7&#39;-tetrahydroxy-3,3&#39; ,4,4&#39;tetramethoxy- 1,1&#39; -
APA, Harvard, Vancouver, ISO, and other styles
3

Buss, V., and K. Kolster. "Electronic Structure Calculations on Phenanthrene and on a Chiral Phenanthrene Derivative." Zeitschrift für Physikalische Chemie 162, Part_1 (1989): 73–82. http://dx.doi.org/10.1524/zpch.1989.162.part_1.073.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Rodrigues, A. C., S. Wuertz, A. G. Brito, and L. F. Melo. "Three-dimensional distribution of GFP-labeled Pseudomonas putida during biofilm formation on solid PAHs assessed by confocal laser scanning microscopy." Water Science and Technology 47, no. 5 (2003): 139–42. http://dx.doi.org/10.2166/wst.2003.0302.

Full text
Abstract:
Confocal laser scanning microscopy was used to monitor the colonization pattern of the gfp-labeled derivative strain of Pseudomonas putida ATCC 17514 on fluorene and phenanthrene crystals. The in situ experiments showed that P. putida tends to grow directly on phenanthrene, forming a biofilm on accessible crystalline surfaces. On the other hand, no significant biofilm formation was observed in the presence of fluorene. The results obtained showed that substrate properties affected bacterial strategy regarding uptake.
APA, Harvard, Vancouver, ISO, and other styles
5

Li, Yu-Peng, Ya-Ting Shao, and Rong-Ping Zhang. "A New Phenanthrene Derivative from Pleione praecox." Chemistry of Natural Compounds 57, no. 3 (2021): 409–11. http://dx.doi.org/10.1007/s10600-021-03375-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Majumder, P. L., and Mausumi Basak. "Cirrhopetalin, a phenanthrene derivative from Cirrhopetalum andersonii." Phytochemistry 29, no. 3 (1990): 1002–4. http://dx.doi.org/10.1016/0031-9422(90)80070-w.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Bisoli, Eder, Talita Vilalva Freire, Nídia Cristiane Yoshida, et al. "Cytotoxic Phenanthrene, Dihydrophenanthrene, and Dihydrostilbene Derivatives and Other Aromatic Compounds from Combretum laxum." Molecules 25, no. 14 (2020): 3154. http://dx.doi.org/10.3390/molecules25143154.

Full text
Abstract:
The chemical investigation of the roots and stems of Combretum laxum yielded a new dihydrostilbene derivative, 4′-hydroxy-3,3′,4-trimethoxy-5-(3,4,5-trimethoxyphenoxy)-bibenzyl (1), two phenanthrenes (2–3), and three dihydrophenanthrenes (4–6), along with one lignan, three triterpenoids, one aurone, one flavone, one naphthoquinone, and two benzoic acid derivatives. Their structures were determined by 1D and 2D nuclear magnetic resonance (NMR) spectroscopic techniques and/or mass spectrometry data. The occurrence of dihydrostilbenoid, phenanthrene and dihydrophenanthrene derivatives is unpreced
APA, Harvard, Vancouver, ISO, and other styles
8

Ude, Ziga, Kevin Kavanagh, Brendan Twamley, et al. "A new class of prophylactic metallo-antibiotic possessing potent anti-cancer and anti-microbial properties." Dalton Transactions 48, no. 24 (2019): 8578–93. http://dx.doi.org/10.1039/c9dt00250b.

Full text
Abstract:
A family of metallo-antibiotics of general formula [Cu(N,N)(CipA)Cl] where N,N is a phenanthrene ligand and CipA is a derivative of the clinically used fluoroquinolone antibiotic ciprofloxacin – targeting immunocompromised cancer patients undergoing chemotherapy.
APA, Harvard, Vancouver, ISO, and other styles
9

Favre-Godal, Quentin, Jane Hubert, Alexis Kotland, et al. "Extensive Phytochemical Assessment of Dendrobium fimbriatum Hook (Orchidaceae)." Natural Product Communications 17, no. 3 (2022): 1934578X2210745. http://dx.doi.org/10.1177/1934578x221074526.

Full text
Abstract:
Dendrobium fimbriatum Hook is an important medicinal and ornamental orchid that may lead to important drugs and cosmetics. In this study, 2 analytical strategies were combined to describe the detailed composition of a hydroethanolic extract of the whole plant. The CARAMEL approach, based on centrifugal partition chromatography and nuclear magnetic resonance data interpretation, allowed the rapid dereplication of 21 major constituents, mainly including polyols, nucleosides, zwitterionic compounds, phenolic compounds, and organic acids. Further semipreparative high-performance liquid chromatogra
APA, Harvard, Vancouver, ISO, and other styles
10

Šebek, Pavel, Petr Sedmera, and Josef Kuthan. "Photochemical Transformations of 2,4,4,6-Tetraphenyl-4H-thiopyran-1,1-dioxide and Some Its para-Substituted Derivatives." Collection of Czechoslovak Chemical Communications 58, no. 4 (1993): 869–81. http://dx.doi.org/10.1135/cccc19930869.

Full text
Abstract:
1,2,4,5-Tetrasubstituted cyclopentadienes VIa-VIf or phenanthrene derivative VIII, respectively, were obtained as the main photoproducts upon irradiation of sulfones Ia-If and II in acetonitrile, methanol or benzene. Bridged isomers Va-Vd were isolated from the reaction of Ia-Id carried out in acetonitrile. Probable course of the investigated photochemical transformations of 4H-thiopyran-1,1-dioxides is discussed.
APA, Harvard, Vancouver, ISO, and other styles
11

Green, Michael D., Gabor Patonay, Thilivhali Ndou, and Isiah M. Warner. "Spectroscopic Effects of Organized Media on a Cyanine Dye/Phenanthrene Derivative." Applied Spectroscopy 46, no. 11 (1992): 1724–28. http://dx.doi.org/10.1366/0003702924926862.

Full text
Abstract:
Absorbance and fluorescence characteristics of a cyanine dye/phenanthrene derivative are studied in the presence of β- and γ-cyclodextrin, Brij 35, cetyltrimethyl ammonium bromide (CTAB), and sodium dodecyl sulfate (SDS). The apparent association constant for the dye cyclodextrin complex is estimated with the use of Benesi-Hildebrand equations. Absorbance measurements are used to estimate the dimerization constant of the dye in aqueous solution.
APA, Harvard, Vancouver, ISO, and other styles
12

Axiotis, Evangelos, Apostolis Angelis, Lemonia Antoniadi, Eleftherios A. Petrakis, and Leandros A. Skaltsounis. "Phytochemical Analysis and Dermo-Cosmetic Evaluation of Cymbidium sp. (Orchidaceae) Cultivation By-Products." Antioxidants 11, no. 1 (2021): 101. http://dx.doi.org/10.3390/antiox11010101.

Full text
Abstract:
Cymbidium is one of the most popular genera in Orchidaceae family, commercialized either as loose flowers or as potted plants in floriculture worldwide. The non-marketable parts are typically discarded (e.g., unsuitable flowers, leaves, pseudobulbs, roots), generating an enormous quantity of unutilized biomass. The above by-products were studied through phytochemical analysis and investigated for their dermo-cosmetic potential. The initial antioxidant, anti-tyrosinase, anti-elastase, and anti-collagenase assays of the total extracts indicated that the pseudobulb and root ethyl acetate extracts
APA, Harvard, Vancouver, ISO, and other styles
13

Calderazzo, Fausto, Claudia Forte, Fabio Marchetti, Guido Pampaloni, and Laura Pieretti. "Reaction of Phenanthrene-9,10-dione with Phenanthrene-9,10-diol: Synthesis and Characterization of the Firstortho-Quinhydrone Derivative." Helvetica Chimica Acta 87, no. 4 (2004): 781–89. http://dx.doi.org/10.1002/hlca.200490076.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Majumder, P. L., Anjali Pal, and Mukta Joardar. "Cirrhopetalanthrin, a dimeric phenanthrene derivative from the orchid Cirrhopetalum maculosum." Phytochemistry 29, no. 1 (1990): 271–74. http://dx.doi.org/10.1016/0031-9422(90)89048-e.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Majumder, P. L., and R. C. Sen. "Pendulin, a polyoxygenated phenanthrene derivative from the orchid Cymbidium pendulum." Phytochemistry 30, no. 7 (1991): 2432–34. http://dx.doi.org/10.1016/0031-9422(91)83675-b.

Full text
APA, Harvard, Vancouver, ISO, and other styles
16

Wang, Yue, Alexander L. Kanibolotsky, Peter J. Skabara, and Tamaki Nakano. "Chirality induction using circularly polarized light into a branched oligofluorene derivative in the presence of an achiral aid molecule." Chemical Communications 52, no. 9 (2016): 1919–22. http://dx.doi.org/10.1039/c5cc08464d.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Majumder, P. L., and Saswati Lahiri. "Volucrin, a new dimeric phenanthrene derivative from the orchid lusia volucris." Tetrahedron 46, no. 10 (1990): 3621–26. http://dx.doi.org/10.1016/s0040-4020(01)81531-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Hanemann, Thomas, Johannes Böhm, Kirsten Honnef, Eberhard Ritzhaupt-Kleissl, and Jürgen Haußelt. "Polymer/Phenanthrene-Derivative Host-Guest Systems: Rheological, Optical and Thermal Properties." Macromolecular Materials and Engineering 292, no. 3 (2007): 285–94. http://dx.doi.org/10.1002/mame.200600409.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Majumder, L., and Subhra Banerjee (neé Bhattacharyya). "A ring-B oxygenated phenanthrene derivative from the orchid Bulbophyllum gymnopus." Phytochemistry 27, no. 1 (1988): 245–48. http://dx.doi.org/10.1016/0031-9422(88)80624-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Mittraphab, Arparporn, Chawanphat Muangnoi, Kittisak Likhitwitayawuid, Pornchai Rojsitthisak, and Boonchoo Sritularak. "A New Bibenzyl-phenanthrene Derivative from Dendrobium signatum and its Cytotoxic Activity." Natural Product Communications 11, no. 5 (2016): 1934578X1601100. http://dx.doi.org/10.1177/1934578x1601100526.

Full text
Abstract:
From the whole plant of Dendrobium signatum, a new bibenzyl-dihydrophenanthrene derivative, named dendrosignatol was isolated, together with the known compounds 3,4-dihydroxy-3,4′-dimethoxybibenzyl, dendrocandin B, dendrocandin I and dendrofalconerol A. The structure of the new compound was elucidated through analysis of its spectroscopic and mass spectrometric data. All of the isolates showed appreciable cytotoxic activity against three human cancer cell lines, including MDA-231, HepG2 and HT-29 cells.
APA, Harvard, Vancouver, ISO, and other styles
21

Grimaldi, Tamiris B., Guilherme Lutz, Davi F. Back, and Gilson Zeni. "(Biphenyl-2-alkyne) derivatives as common precursors for the synthesis of 9-iodo-10-organochalcogen-phenanthrenes and 9-organochalcogen-phenanthrenes." Organic & Biomolecular Chemistry 14, no. 44 (2016): 10415–26. http://dx.doi.org/10.1039/c6ob01807f.

Full text
Abstract:
We present here our results on the cyclization of (biphenyl-2-ethynyl) selenides to give two different types of phenanthrene derivatives, 9-iodo-10-organochalcogen-phenanthrenes and 9-organochalcogen-phenanthrenes.
APA, Harvard, Vancouver, ISO, and other styles
22

Li, Yu-Peng, Ya-Ping Chen, Xing-Long Chen, Yong-Sheng Tao та Rong-Ping Zhang. "A New Phenanthrene Derivative with α-Glucosidase Inhibitory Activity from Pleione maculata". Chemistry of Natural Compounds 58, № 1 (2022): 6–8. http://dx.doi.org/10.1007/s10600-022-03587-z.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Visochek, Leonid, Dikla Atias, Itay Spektor, Asher Castiel, Talia Golan, and Malka Cohen-Armon. "The phenanthrene derivative PJ34 exclusively eradicates human pancreatic cancer cells in xenografts." Oncotarget 10, no. 58 (2019): 6269–82. http://dx.doi.org/10.18632/oncotarget.27268.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Gao, Bo, Lan Xin, Wei Gao, et al. "Synthesis and structural characterization of magnesium complexes bearing phenanthrene imine derivative ligands." Polyhedron 63 (October 2013): 91–95. http://dx.doi.org/10.1016/j.poly.2013.07.010.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

Carretero, A. Segura, M. Martinez Galera, C. Cruces Blanco, M. D. Gil García, A. Fernández Gutiérrez, and J. L. Martínez Vidal. "Application of Partial Least-Squares Calibration to Phosphorimetric Data for Determination of Polycyclic Aromatic Hydrocarbons in Spiked Environmental Samples." Journal of AOAC INTERNATIONAL 83, no. 2 (2000): 391–98. http://dx.doi.org/10.1093/jaoac/83.2.391.

Full text
Abstract:
Abstract A partial least-squares calibration method is proposed, for the first time, for phosphorescence signals. The proposed method is based on the determination of phenanthrene, fluoranthene, and benz[a]anthracene by room temperature phosphorimetry, using microemulsion solutions. The emission and first-derivative emission spectra of the ternary mixtures were tested to perform the calibration matrix. Improved recoveries were found for the prior differentiation step in the analysis of ternary mixtures of these polycyclic aromatic hydrocarbons in road dust samples. The proposed method yielded
APA, Harvard, Vancouver, ISO, and other styles
26

Semenok, Dmitrii, Jury Medvedev, Lefki-P. Giassafaki, et al. "4,5-Diaryl 3(2H)Furanones: Anti-Inflammatory Activity and Influence on Cancer Growth." Molecules 24, no. 9 (2019): 1751. http://dx.doi.org/10.3390/molecules24091751.

Full text
Abstract:
Apart from their anti-inflammatory action, COX inhibitors have gathered the interest of many scientists due to their potential use for the treatment and prevention of cancer. It has been shown that cyclooxygenase inhibitors restrict cancer cell growth and are able to interact with known antitumor drugs, enhancing their in vitro and in vivo cytotoxicity. The permutation of hydrophilic and hydrophobic aryl groups in COX inhibitors leads to cardinal changes in the biological activity of the compounds. In the present study, thirteen heterocyclic coxib-like 4,5-diarylfuran-3(2H)-ones and their anne
APA, Harvard, Vancouver, ISO, and other styles
27

Swe, Hla Nu, Boonchoo Sritularak, Ponlapat Rojnuckarin, and Rataya Luechapudiporn. "Inhibitory Mechanisms of Lusianthridin on Human Platelet Aggregation." International Journal of Molecular Sciences 22, no. 13 (2021): 6846. http://dx.doi.org/10.3390/ijms22136846.

Full text
Abstract:
Lusianthridin is a phenanthrene derivative isolated from Dendrobium venustum. Some phenanthrene compounds have antiplatelet aggregation activities via undefined pathways. This study aims to determine the inhibitory effects and potential mechanisms of lusianthridin on platelet aggregation. The results indicated that lusianthridin inhibited arachidonic acid, collagen, and adenosine diphosphate (ADP)-stimulated platelet aggregation (IC50 of 0.02 ± 0.001 mM, 0.14 ± 0.018 mM, and 0.22 ± 0.046 mM, respectively). Lusianthridin also increased the delaying time of arachidonic acid-stimulated and the la
APA, Harvard, Vancouver, ISO, and other styles
28

Huang, Yuanshan, Xin Zheng, Zizhu Yao, et al. "Multimode stimuli responsive dual-state organic room temperature phosphorescence from a phenanthrene derivative." Chemical Engineering Journal 444 (September 2022): 136629. http://dx.doi.org/10.1016/j.cej.2022.136629.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Huang, Yuanshan, Xin Zheng, Zizhu Yao, et al. "Multimode stimuli responsive dual-state organic room temperature phosphorescence from a phenanthrene derivative." Chemical Engineering Journal 444 (September 2022): 136629. http://dx.doi.org/10.1016/j.cej.2022.136629.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Visochek, Leonid, Dikla Atias, Itay Spektor, Asher Castiel, Talia Golan, and Malka Cohen-Armon. "Correction: The phenanthrene derivative PJ34 exclusively eradicates human pancreatic cancer cells in xenografts." Oncotarget 11, no. 5 (2020): 571–72. http://dx.doi.org/10.18632/oncotarget.27440.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

FURUSAWA, Motohisa, Masaki TACHIBANA, Satoshi SUGIME, and Shinnosuke SAKURAI. "Determination of Trace Amounts of Anthracene in Phenanthrene by Derivative Synchronous Fluorescence Spectrometry." NIPPON KAGAKU KAISHI, no. 3 (1998): 211–14. http://dx.doi.org/10.1246/nikkashi.1998.211.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Thumpakara, Roshini K., Binoy Jose, Perupparampil A. Unnikrishnan, Sreedharan Prathapan, and Nigam P. Rath. "Effect of a Strategically Positioned Methoxy Substituent on the Photochemistry of 3-Aryl-3H-1-Oxacyclopenta[l]Phenanthren-2-Ones." Organic Chemistry International 2010 (December 28, 2010): 1–5. http://dx.doi.org/10.1155/2010/764185.

Full text
Abstract:
Irradiation of 3-methoxy-3-aryl-3H-1-oxacyclopenta[l]phenanthren-2-one derivatives 5a–d resulted in singlet-mediated decarbonylation reaction leading to the formation of phenanthrene derivatives 9a–d. The structure of the photoproduct was unequivocally established on the basis of X-ray crystallographic analysis.
APA, Harvard, Vancouver, ISO, and other styles
33

Magnibou, Larissa M., Peron B. Leutcha, Billy T. Tchegnitegni, et al. "A new phenanthrene derivative from Entada abyssinica with antimicrobial and antioxidant properties." Zeitschrift für Naturforschung B 77, no. 1 (2021): 1–7. http://dx.doi.org/10.1515/znb-2021-0076.

Full text
Abstract:
Abstract Entada abyssinica Steud. Ex A. Rich (Leguminosae) is a medicinal plant used traditionally for the treatment of infections. A phytochemical investigation of the methanol extract of E. abyssinica root bark led to the isolation of a new phenanthrene derivative named phenentada (1), together with seven known compounds (8 S, 13 E)-kolavic acid 15-methyl ester (2) and 8 S-kolavic acid 15-methyl ester (3) obtained as mixture, 8 S-kolavic acid 15-methyl ester (3), 8 S-kolavic acid 18-methyl ester (4), 13,14,15,16-tetranorclerod-3-ene-12,18-dioic acid (5), 1′,26′-bis-[(S)-2,3-dihydroxypropyl]
APA, Harvard, Vancouver, ISO, and other styles
34

Pataki, John, Pasquale Di Raddo, and Ronald G. Harvey. "An efficient synthesis of the highly tumorigenic anti-diol epoxide derivative of benzo[c]phenanthrene." Journal of Organic Chemistry 54, no. 4 (1989): 840–44. http://dx.doi.org/10.1021/jo00265a023.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Wang, Ying-Ying, Tsuyoshi Taniguchi, Tomohisa Baba, Ying-Yi Li, Hiroyuki Ishibashi, and Naofumi Mukaida. "Identification of a phenanthrene derivative as a potent anticancer drug with Pim kinase inhibitory activity." Cancer Science 103, no. 1 (2011): 107–15. http://dx.doi.org/10.1111/j.1349-7006.2011.02117.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Karikomi, Michinori, Mari Yamada, Yasushi Ogawa, et al. "Novel synthesis of a unique helical quinone derivative by coupling reaction of 2-hydroxybenzo[c]phenanthrene." Tetrahedron Letters 46, no. 35 (2005): 5867–69. http://dx.doi.org/10.1016/j.tetlet.2005.06.142.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Hearn, Elizabeth M., Jonathan J. Dennis, Murray R. Gray, and Julia M. Foght. "Identification and Characterization of the emhABC Efflux System for Polycyclic Aromatic Hydrocarbons in Pseudomonas fluorescens cLP6a." Journal of Bacteriology 185, no. 21 (2003): 6233–40. http://dx.doi.org/10.1128/jb.185.21.6233-6240.2003.

Full text
Abstract:
ABSTRACT The hydrocarbon-degrading environmental isolate Pseudomonas fluorescens LP6a possesses an active efflux mechanism for the polycyclic aromatic hydrocarbons phenanthrene, anthracene, and fluoranthene but not for naphthalene or toluene. PCR was used to detect efflux pump genes belonging to the resistance-nodulation-cell division (RND) superfamily in a plasmid-cured derivative, P. fluorescens cLP6a, which is unable to metabolize hydrocarbons. One RND pump, whose gene was identified in P. fluorescens cLP6a and was designated emhB, showed homology to the multidrug and solvent efflux pumps i
APA, Harvard, Vancouver, ISO, and other styles
38

P., L. Majumder, Mukhoti Nirmalendu, and Chattopadhyay (nee Lahiri) Saswati. "Agrostophyllanthrol and isoagrostophyllanthrol, two novel diastereomeric phenanthropyran derivatives from the orchid Agrostophyllum khasiyanum." Journal of Indian Chemical Society Vol. 85, Dec 2008 (2008): 1315–25. https://doi.org/10.5281/zenodo.5819637.

Full text
Abstract:
Department of Chemistry. University College of Science, 92, Acharya Prafulla Chandra Road, Kolkata-700 009, India <em>E-mail</em> : priyalalm@hotmail.com <em>Manuscript received 11 November 2008, accepted 17 November 2008</em> Agrostophyllanthrol and isoagrostophyllanthrol, two novel diastereomeric phenanthropyran derivatives were isolated from the orchid <em>Agrostophyllum khasiyauum</em> which earlier afforded eleven stilbenoids, viz. the two dimeric phenanthrene derivatives agrostonin [2,2&#39;, 7, 7&#39; -tetrahydroxy-4,4&#39; ,6,6&#39; -tetramethoxy-1,1&#39; -biphenanthryl] and agrostonid
APA, Harvard, Vancouver, ISO, and other styles
39

Gao, Bo, Xuyang Luo, Wei Gao, et al. "Chromium complexes supported by phenanthrene-imine derivative ligands: synthesis, characterization and catalysis on isoprene cis-1,4 polymerization." Dalton Transactions 41, no. 9 (2012): 2755. http://dx.doi.org/10.1039/c2dt11365a.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

NATH, JAYASREE, SUBRATA DEB, ADRITA CHAKRABARTI, AJITESH PAL, and RANENDU KUMAR NATH. "COMPARATIVE STUDY OF THE BEHAVIOR OF BATHOPHENANTHROLINE IN THE RESTRICTED GEOMETRY OF LANGMUIR–BLODGETT FILM WITH TWO DIFFERENT FATTY ACIDS." International Journal of Modern Physics B 28, no. 06 (2014): 1450020. http://dx.doi.org/10.1142/s0217979214500209.

Full text
Abstract:
This communication reports the successful fabrication and the comparative study of Langmuir and Langmuir–Blodgett (LB) films of nonamphiphilic phenanthrene derivative, 1, 10 phenanthroline (bathophenanthroline) (BATH), when incorporated to a long chain fatty acid viz. heptadecanoic acid and stearic acid. Measurements of compressibility modulus from the surface pressure versus area per molecule isotherm indicate that the mixed film of BATH and SA is harder than that with HA. The plot of area per molecule versus mole fraction is the indication of some repulsive interactions between binary compon
APA, Harvard, Vancouver, ISO, and other styles
41

Eiroa, Áurea Andrade, Esther Vázquez Blanco, Purificación López Mahía, Soledad Muniategui Lorenzo, Darío Prada Rodríguez, and Esther Fernández Fernández. "Error Propagation as a Factor in Selection of Measurement Intervals for the Determination of Polycyclic Aromatic Hydrocarbons by Second-Derivative Spectrofluorimetry." Journal of AOAC INTERNATIONAL 83, no. 4 (2000): 977–84. http://dx.doi.org/10.1093/jaoac/83.4.977.

Full text
Abstract:
Abstract The most suitable wavelength intervals were selected for the determination of 4 polycyclic aromatic hydrocarbons (PAHs; benzo[g,h,i]perylene, dibenzo[a,h]anthracene, pyrene, and triphenylene) in very complex mixtures of 11 PAHs: anthracene, benz[a]anthracene, benzo[a]pyrene, benzo[b]fluoranthene, benzo[g,h,i]perylene, benzo[k]fluoranthene, chrysene, dibenz[a,h]anthracene, phenanthrene, pyrene, and triphenylene. The multiple linear regression algorithm was applied to measurements made in several wavelength intervals previously selected on the basis of sensitivity and minimum number of
APA, Harvard, Vancouver, ISO, and other styles
42

Mohd Zain, Asna, Shaaban Md Ghazaly, and Mahmud Hilmi. "Leachability of Solidified Petroleum Sludge." Advanced Materials Research 917 (June 2014): 123–33. http://dx.doi.org/10.4028/www.scientific.net/amr.917.123.

Full text
Abstract:
Petroleum sludge was solidified in ordinary Portland cement, and the leachability test was performed based on American Nuclear Society 16.1 to produce leachate. The organic in solidified sludge was extracted by micro solid extraction to determine the organic in the sample. Organic in the leachate sample was detected by solid phase micro extraction by head space polydimethyl siloxane fiber using gas chromatography mass spectrometry. The targeted organic compounds in solid sample and leachate were quantified by the benzene, toluene, ethyl benzene, xylene, naphthalene and phenanthrene standards.
APA, Harvard, Vancouver, ISO, and other styles
43

Hackfort, Thorsten, Beate Neumann, Hans-Georg Stammler, and Dietmar Kuck. "A cyclopenta[hi]acephenanthrylene bearing two benzoannelated [3.3.3]propellane units: extension of triptindane chemistry." Canadian Journal of Chemistry 95, no. 4 (2017): 390–98. http://dx.doi.org/10.1139/cjc-2016-0498.

Full text
Abstract:
The McMurry reaction of triptindan-9-one (2), a three-fold benzoannelated Cs-symmetrical [3.3.3]propellane ketone, gave trans-9,9′-bitriptindanylidene (5), a sterically crowded stilbene hydrocarbon bearing two E-oriented triptindane moieties, in good yield. Photoisomerization of 5 generated the corresponding cis-stilbene 8 in a photostationary E:Z mixture (55:45), which adopts a similarly crowded C2-symmetrical conformation that is apparently static on the NMR timescale. Photocyclodehydrogenation of 5 via 8 in benzene solution afforded the title hydrocarbon 6, a 1,2,9,10-tetrahydrocyclopenta[h
APA, Harvard, Vancouver, ISO, and other styles
44

Fu, Jian-min, and Victor Snieckus. "The directed ortho metalation - palladium catalyzed cross coupling connection. A general regiospecific route to 9-phenanthrols and phenanthrenes. Exploratory further metalation." Canadian Journal of Chemistry 78, no. 6 (2000): 905–19. http://dx.doi.org/10.1139/v00-055.

Full text
Abstract:
A new general and regiospecific synthesis of 9-phenanthrols (1 +2 [Formula: see text] 3 [Formula: see text] 4, Scheme 1, Table 1) proceeding by a Directed ortho Metalation (DoM), Suzuki-Miyaura cross coupling, and a new LDA-mediated Directed remote Metalation sequence is described. The facile Pd-catalyzed hydrogenolysis of the phenanthrols 4 into the corresponding phenanthrenes 5 via their triflates 18 translates the original DoM regioselectivity also into a general synthesis of phenanthrenes (Table 2). Further DoM (19 [Formula: see text]20, 21; 24 [Formula: see text]25), cross coupling (20c [
APA, Harvard, Vancouver, ISO, and other styles
45

Solevic, Tatjana, Milan Novakovic, Mila Ilic, Malisa Antic, Miroslav Vrvic, and Branimir Jovancicevic. "Investigation of the bioremediation potential of aerobic zymogenous microorganisms in soil for crude oil biodegradation." Journal of the Serbian Chemical Society 76, no. 3 (2011): 425–38. http://dx.doi.org/10.2298/jsc100531033s.

Full text
Abstract:
The bioremediation potential of the aerobic zymogenous microorganisms in soil (Danube alluvium, Pancevo, Serbia) for crude oil biodegradation was investigated. A mixture of paraffinic types of oils was used as the substrate. The laboratory experiment of the simulated oil biodegradation lasted 15, 30, 45, 60 and 75 days. In parallel, an experiment with a control sample was conducted. Extracts were isolated from the samples with chloroform in a separation funnel. From these extracts, the hydrocarbons were isolated by column chromatography and analyzed by gas chromatography-mass spectrometry (GC-
APA, Harvard, Vancouver, ISO, and other styles
46

Nam, Bomi, Ah-Reum Han, and Ik-Soo Lee. "Microbial Glycosylation of Phenanthrene and Bibenzyls by Mucor hiemalis." Natural Product Communications 15, no. 11 (2020): 1934578X2097450. http://dx.doi.org/10.1177/1934578x20974508.

Full text
Abstract:
Microbial transformation of denthyrsinin (1), gigantol (2), and batatasin III (3), the major constituents of Dendrobium species (Orchidaceae), was performed using the filamentous fungus Mucor hiemalis KCTC 26779. Three glycosylated metabolites were obtained in the biotransformation of 1-3, and their structures were identified as denthyrsinin-6- O-β-d-glucoside (4), gigantol-5- O-β-d-glucoside (5), and batatasin III-3- O-β-d-glucoside (6) by analyzing 1-dimensional and 2-dimensional-nuclear magnetic resonance spectra, as well as high-resolution electrospray ionization mass spectral data. Among
APA, Harvard, Vancouver, ISO, and other styles
47

Liang, Houjie, Xinxin Wang, Xingye Zhang, et al. "Saturated deep-blue emitter based on a spiro[benzoanthracene–fluorene]-linked phenanthrene derivative for non-doped organic light-emitting diodes." New J. Chem. 38, no. 10 (2014): 4696–701. http://dx.doi.org/10.1039/c4nj00735b.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Wei, Chaoxian, Pei Ren, Qiulin Cen, Yaxian Zhu, and Yong Zhang. "Simultaneous determination of dissolved phenanthrene and its metabolites by derivative synchronous fluorescence spectrometry with double scans method in aqueous solution." Talanta 195 (April 2019): 339–44. http://dx.doi.org/10.1016/j.talanta.2018.11.075.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Salama, F., C. Joblin, and L. J. Allamandola. "Electronic absorption spectroscopy of matrix‐isolated polycyclic aromatic hydrocarbon cations. II. The phenanthrene cation (C14H10+) and its 1‐methyl derivative." Journal of Chemical Physics 101, no. 12 (1994): 10252–62. http://dx.doi.org/10.1063/1.467905.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Ivković, Ivana, Miroslav Novaković, Milan Veljić, et al. "Bis-Bibenzyls from the Liverwort Pellia endiviifolia and Their Biological Activity." Plants 10, no. 6 (2021): 1063. http://dx.doi.org/10.3390/plants10061063.

Full text
Abstract:
Based on previous investigations where bis-bibenzyls isolated from liverworts showed various biological activities (cytotoxic, antimicrobial, and antiviral), we investigated their cytotoxic activity in several human cancer cell lines. From the methylene-chloride/methanol extract of the liverwort Pellia endiviifolia, three bis-bibenzyls of the perrottetin type were isolated, namely perrottetin E, 10′-hydroxyperrottetin E, and 10,10′-dihydroxyperrottetin E. The last two were found for the first time in this species. Their structures were resolved using 1D and 2D NMR, as well as by comparison wit
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!