Academic literature on the topic 'Phenoxazine'

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Journal articles on the topic "Phenoxazine"

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Fukui, Norihito, Wonhee Cha, Daiki Shimizu, et al. "Highly planar diarylamine-fused porphyrins and their remarkably stable radical cations." Chemical Science 8, no. 1 (2017): 189–99. http://dx.doi.org/10.1039/c6sc02721k.

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Oxidative fusion of a meso-phenoxazino Ni(ii) porphyrin at high temperature gave a doubly phenoxazine-fused porphyrin as a highly planar diarylamine-fused porphyrin. One-electron oxidation of the corresponding β,β-dichlorinated compound gave a remarkably stable radical cation.
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Journal, Baghdad Science. "Synthesis of New N-Substituted Phenoxazine Derivatives." Baghdad Science Journal 13, no. 2 (2016): 360–65. http://dx.doi.org/10.21123/bsj.13.2.360-365.

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This work comprises the synthesis of new phenoxazine derivatives containing N-substituted phenoxazine starting from phenoxazine (1). Synthesis of ethyl acetate phenoxazine (2) through the reaction of phenoxazine with ethylchloroacetate, which reacted with hydrazine hydrate to give 10-aceto hydrazide phenoxazine (3), then reacted with formic acid to give 10-[N-formyl acetohydrazide] phenoxazine (4). Reaction of compound (4) with phosphorous pentaoxide or phosphorus pentasulphide to gave 10-[N-methylene-1,3,4-oxadiazole] phenoxazine (5) and 10-[N-methylene-1,3,4-thiadiazole] phenoxazine (6).
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Ivakhnenko, T. E., N. I. Makarova, E. P. Ivakhnenko, V. I. Minkin, and M. I. Knyazhansky. "Photoinitiated azo-hydrazo tautomerizm of 1-p- toluenesulphonylazo-2,4,6,8-tetrakis (tert-butyl)phenoxazine." International Journal of Photoenergy 1, no. 3 (1999): 161–64. http://dx.doi.org/10.1155/s1110662x99000288.

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A novel photochromic compound with NH-N intramolecular H-bond (1-p-toluenesulphonylazo- 2,4,6,8-tetrakis(tert-butyl)phenoxazine) and the corresponding model structures (1-oxo-2,4,6,8-tetrakis(tertbutyl) phenoxazine, 2,4,5,7-tetrakis (tert-butyl )-1-( veratroylazo ) phenoxazine, 2,4,5,7-tetrakis ( tert-butyl )-Nacetyl- 1-(p-toluenesulphonylazo)phenoxazine) have been synthesized and their spectral and photochemical properties are studied. The photochromic transformations observed are found to be conditioned by ESIPT (as a primary step) followed by E-Z isomerisation about N–N-bond.
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Journal, Baghdad Science. "Rapid Spectrophotometric Determination of Phenoxazine." Baghdad Science Journal 7, no. 2 (2010): 1001–5. http://dx.doi.org/10.21123/bsj.7.2.1001-1005.

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A rapid high sensitive and inexpensive economic method has been developed for the Determination of phenoxazine by using molecular spectrophotometry. The method is based on the oxidation of phenoxazine by potassium (meta)periodate in acidic medium. The oxidation conditions were selected to enhance the sensitivity and the stability of the pink colored species which shows an absorption maximum at 530 nm. The Beer’s law was obeyed for phenoxazine concentration range from 1 to 6 µg mL-1 with 0.003 µg mL-1 detection limit and provided variation coefficients between 0.4 to 1.7 %. This method was succ
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Ezeokonkwo, Mercy Amarachukwu, Kingsley Chizoba Iloka, Uchechukwu Chris Okoro, et al. "Synthesis and Antimicrobial Activity of New Derivatives of Angular Polycyclic Phenoxazine Ring System." Oriental Journal Of Chemistry 35, no. 4 (2019): 1320–26. http://dx.doi.org/10.13005/ojc/350410.

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Synthesis of angular polycyclic phenoxazine derivatives incorporating different phenols is reported in 30-99% yields. O-arylation of 6-chlorodibenzo[a,j] phenoxazin-5-one with a variety of electron-deficient, electron-neutral and electron-rich phenols under the catalytic palladium (II) acetate/t-BuXphos system furnished the compounds of interest. The highest yields were obtained when the intermediate was coupled with electron-rich phenols. IR, 1H-NMR, 13C-NMR and Mass spectra data, confirmed the structures of all the synthesized compounds. Study on the in vitro biological evaluation of the com
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Iqbal, Nadeem, and Yoshio Ueno. "Synthesis of crowned phenoxazine derivatives." Monatshefte f�r Chemie Chemical Monthly 123, no. 6-7 (1992): 655–58. http://dx.doi.org/10.1007/bf00816860.

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Bespalov, B. P. "Tricyanovinylation of phenoxazine and phenothiazine." Chemistry of Heterocyclic Compounds 21, no. 3 (1985): 268–72. http://dx.doi.org/10.1007/bf00506662.

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Marimuthu, Thashree, Muhammad D. Bala, and Holger B. Friedrich. "4,6-Bis(diphenylphosphino)phenoxazine (nixantphos)." Acta Crystallographica Section E Structure Reports Online 64, no. 4 (2008): o711. http://dx.doi.org/10.1107/s1600536808006648.

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Ozkan, S. Zh, G. P. Karpacheva, G. N. Bondarenko, and A. V. Topchiev. "Phenoxazine polymers: synthesis and structure." Russian Chemical Bulletin 60, no. 8 (2011): 1651–56. http://dx.doi.org/10.1007/s11172-011-0247-z.

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Kulszewicz-Bajer, Irena, Malgorzata Zagorska, Marzena Banasiewicz, et al. "Effect of the substituent position on the electrochemical, optical and structural properties of donor–acceptor type acridone derivatives." Physical Chemistry Chemical Physics 22, no. 16 (2020): 8522–34. http://dx.doi.org/10.1039/d0cp00521e.

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Dissertations / Theses on the topic "Phenoxazine"

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Farmer, Luke. "A Linear Free-Energy Approach to the Study of Substituted Phenoxazines as a Potent Family of Radical Trapping Antioxidants." Thesis, Université d'Ottawa / University of Ottawa, 2018. http://hdl.handle.net/10393/37722.

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Radical mediated autoxidation is a pervasive phenomenon in commercial (i.e. rubbers, fuels, lubricants, etc.) and biological contexts (i.e. lipid peroxidation associated with neurodegeneration, cancer, and aging), which can be strategically managed with radical-trapping antioxidants (RTAs). While various phenol and polyphenol RTAs have enjoyed much academic fanfare, particularly in biochemical circles, there are other RTA scaffolds that tend to be overlooked despite possessing rather promising activity. Among these seldom studied RTA scaffolds is that of the tricyclic aromatic amine phenoxazin
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Karlsson, Karl Martin. "Design, Synthesis and Properties of Organic Sensitizers for Dye Sensitized Solar Cells." Doctoral thesis, KTH, Kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-33190.

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This thesis gives a detailed description of the design and synthesis of new organic sensitizers for Dye sensitized Solar Cells (DSCs). It is divided in 7 chapters, where the first gives an introduction to the field of DSCs and the synthesis of organic sensitizers. Chapters 2 to 6 deal with the work of the author, starting with the first publication and the other following in chronological order. The thesis is completed with some concluding remarks (chapter 7). The DSC is a fairly new solar cell concept, also known as the Grätzel cell, after its inventor Michael Grätzel. It uses a dye (sensitiz
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McErlean, Matthew Richard. "ACTINOMYCIN FAMILIAL DIVERSITY DRIVEN BY PHENOXAZINONE-CORE REACTIVITY." UKnowledge, 2019. https://uknowledge.uky.edu/pharmacy_etds/97.

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Actinomycins are a class of compounds consisting of phenoxazinone-like core attached to two peptidolactone rings, denoted as α and β. A unique component of a few families—actinomycins G, Y, and Z—is a chlorinated β-ring threonine residue. Families G and Y also contained an actinomycin that possess a β-ring heterocycle (actinomycins G5 and Y5, respectively); prior to this work, no β-ring heterocycle-containing actinomycins were reported for the Z family. Unlike other actinomycin derivatives, Y5’s cytotoxicity was abolished while still maintaining some antibacterial potency. We constructed a mod
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Otteny, Fabian [Verfasser], and Birgit [Akademischer Betreuer] Esser. "Redoxaktive Polymere auf Basis von Phenothiazin, Phenoxazin, Phenazin und Terephthalat als Elektrodenmaterialien für Batterien." Freiburg : Universität, 2020. http://d-nb.info/1233599895/34.

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Sidhu, J. S. "The biotransformation of phenoxazone ethers and their suitability for the assessment of cytochrome P-450 activity in rat liver cells." Thesis, Brunel University, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234567.

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Ramegowda, M. "Structural investigations of some phenoxazine derivatives." Thesis, 1997. http://hdl.handle.net/2009/1649.

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"Novel Phenoxazine-based Photosensitizers for Photodynamic Therapy." 2016. http://repository.lib.cuhk.edu.hk/en/item/cuhk-1292473.

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Soriano, Juarez Eduardo Salvador. "Synthesis and Characterization of New Near-Infrared Chromophores: Cyanine and Phenoxazine Derivatives." 2015. http://scholarworks.gsu.edu/chemistry_theses/76.

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This thesis reports the synthesis of new near infrared dyes in three chapters. The first two chapters outline the synthetic procedure for synthesizing mono- and pentamethine cyanine dyes. The initial chapter encompasses the synthesis of asymmetric monomethine dyes with red-shifted optical properties. The second chapter involves the synthesis and assessment of new symmetrical quinolin-4-yl and phenanthridin-6-yl pentamethine dyes as potential oxidative DNA cleavage agents. The last chapter of the thesis details the synthesis and evaluation of new phenoxizinum dyes as contrast agents for insulun
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Lopes, Carla Maria Faria. "Molecular pathways involved in the yeast cell death induced by a benzo[a]phenoxazine derivate." Master's thesis, 2015. http://hdl.handle.net/1822/35687.

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Dissertação de mestrado em Genética Molecular<br>Cell death is an essential aspect of animal development and homeostasis that when deregulated, can cause many disorders. In this context, cell death is mostly a tightly controlled process both in its activation and execution, acting to keep cell numbers in tissues and organs at appropriate levels. Phenoxazine derivatives have attracted increasing attention in life sciences due to their antiproliferative properties with potential applications both as antitumor and antimicrobial agents as they can form stable complexes with DNA. In fact, the
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Jayashree, B. S. "Reversal of drug resistance in cancer cells and bacteria by 2-chloro-N10-substituted phenoxazine chemosensitizers." Thesis, 1998. http://hdl.handle.net/2009/1644.

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Books on the topic "Phenoxazine"

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Sidhu, Jaspreet Singh. The biotransformation of phenoxazone ethers and their suitability for the assessment of cytochrome P-450 activity in rat liver cells. Brunel University, 1989.

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Book chapters on the topic "Phenoxazine"

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Alavi, D. S., R. S. Hartman, and D. H. Waldeck. "Rotational Diffusion of Phenoxazine Dyes: Characterization of Molecular Friction." In Springer Series in Chemical Physics. Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-84269-6_135.

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Coutinho, Paulo J. G. "Photophysics and Biophysical Applications of Benzo[a]phenoxazine Type Fluorophores." In Reviews in Fluorescence. Springer New York, 2009. http://dx.doi.org/10.1007/978-0-387-88722-7_14.

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Kitson, Trevor M., Kathryn E. Kitson, and Gordon J. King. "Covalent Modification of Sheep Liver Cytosolic Aldehyde Dehydrogenase by the Oxidative Addition of Coloured Phenoxazine, Phenothiazine and Phenazine Derivatives." In Advances in Experimental Medicine and Biology. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4735-8_11.

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Shahid Khan, Mohd, Javid Ali, Avshish Kumar, and Mushahid Husain. "Study of Forster’s Resonance Energy Transfer Between MWCNT and Phenoxazone 660." In Physics of Semiconductor Devices. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03002-9_130.

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Yoshida, S., K. Kozawa, and T. Uchida. "Electrical properties of sublimed films of phenothiazine and phenoxazine derivatives." In Advanced Materials '93. Elsevier, 1994. http://dx.doi.org/10.1016/b978-1-4832-8380-7.50156-5.

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Ulrich, H. "Phenoxazines." In Six-Membered Hetarenes with Two Unlike or More than Two Heteroatoms and Fully Unsaturated Larger-Ring Heterocycles. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-017-00120.

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"3.5. Phenoxazines." In Hetarenes IV, edited by Ernst Schaumann. Georg Thieme Verlag, 1997. http://dx.doi.org/10.1055/b-0035-118058.

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Ulrich, H. "Reductive O-Methylation of Phenoxazin-3-one." In Six-Membered Hetarenes with Two Unlike or More than Two Heteroatoms and Fully Unsaturated Larger-Ring Heterocycles. Georg Thieme Verlag KG, 2004. http://dx.doi.org/10.1055/sos-sd-017-00157.

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Boguslavsky, L., L. Geng, Z. Xu, et al. "A Comparative Study on NADH Catalysis by Phenoxazines and Phenothiazines on Different Surfaces and Glucose Sensor Optimization." In Biosensors '94. Elsevier, 1994. http://dx.doi.org/10.1016/b978-1-85617-242-4.50154-3.

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Conference papers on the topic "Phenoxazine"

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Agabekov, Vladimir E., Olga E. Ignasheva, Yurii I. Gudimenko, and Vladimir N. Belyatsky. "Vacuum photoresists on a base of phenoxazine and their lithographic properties." In SPIE's 1995 Symposium on Microlithography, edited by Robert D. Allen. SPIE, 1995. http://dx.doi.org/10.1117/12.210403.

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Gonçalves, M. S. T., V. H. J. Frade, M. J. Sousa, and C. V. P. Moura. "Antimicrobial evaluation of benzo[a]phenoxazine heterocycles: structure–activity relationships." In The 10th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2006. http://dx.doi.org/10.3390/ecsoc-10-01428.

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Gonçalves, M. Sameiro, Síria Barros, Vânia Frade, and João Moura. "Benzo[a]phenoxazine dyes as new fluorescent labels of L-valine." In The 10th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2006. http://dx.doi.org/10.3390/ecsoc-10-01411.

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Agabekov, Vladimir E., and Olga E. Ignasheva. "Optical and masking properties of vacuum photoresists based on benzo[a]phenoxazine derivatives." In Optical Information Science and Technology, edited by Andrei L. Mikaelian. SPIE, 1998. http://dx.doi.org/10.1117/12.301422.

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Agabekov, Vladimir E., Olga E. Ignasheva, and Vladimir N. Belyatsky. "Vacuum-vapor-deposited films based on benzo(a)phenoxazine derivatives under surface plasma fluorination." In Microlithography '97, edited by Regine G. Tarascon-Auriol. SPIE, 1997. http://dx.doi.org/10.1117/12.275875.

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Stüber, W., D. Schiwek, U. Becker, and N. Heimburger. "NEW CHROMOGENIC SUBSTRATES FOR THE DETERMINATION OF COAGULATION AND FIBRINOLYSIS ENZYMES." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644323.

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A new type of chromogenic substraces based on derivatives of phenoxazine is presented. Particularly interesting is the blue dye 7-amino-3-diethylamino-8-methylphenoxazine (ADMP) with a molar extinktion coefficient of about 80,000 at 624 nm. Peptides were linked to the aminogroup of the dye and red coloured substrates were obtained with a λmax value of about 540 nm. On account of the distinct difference of the λmax values and the negligable influence of the absorption peaks of the acylated and the free dye this chromophore is suitable for the synchesis of substrates. Besides the spectral proper
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Pounraj, P., V. Mohankumar, M. Senthil Pandian, and P. Ramasamy. "10-(quinolin-6-yl)-10H-phenoxazine donor based organic sensitizers for dye sensitized solar cells (DSSC) application - A theoretical approach." In INTERNATIONAL CONFERENCE ON RENEWABLE ENERGY RESEARCH AND EDUCATION (RERE-2018). Author(s), 2018. http://dx.doi.org/10.1063/1.5047960.

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Gonçalves, M., Vânia Frade, and João Moura. "Synthesis of Fluorescent Benzo[a]Phenoxazines." In The 8th International Electronic Conference on Synthetic Organic Chemistry. MDPI, 2004. http://dx.doi.org/10.3390/ecsoc-8-01952.

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Lin, Chi-Wei, Janine R. Shulok, Yau K. Wong, Louis Cincotta, and James W. Foley. "Uptake, retention, and phototoxicity of cationic phenoxazines photosensitizers in tumor cells in culture." In OE/LASE '90, 14-19 Jan., Los Angeles, CA, edited by Thomas J. Dougherty. SPIE, 1990. http://dx.doi.org/10.1117/12.17676.

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Morozova, Julia, and Olga Chaikovskaya. "Photophysics and spectral-luminescent properties of phenoxazinone and its fluorated analog in binary solvent." In Second Conference on Pulsed Lasers: Pulsed Atomic and Molecular Transitions, edited by Victor F. Tarasenko, Georgy V. Mayer, and Gueorgii G. Petrash. SPIE, 1995. http://dx.doi.org/10.1117/12.216904.

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