- Synthesis, structural, spectroscopic, mechanical, linear and nonlinear optical studies on 4-dimethylaminopyridinium p-toluenesulfonate: A comparative theoretical and experimental investigation
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Single crystal of 4-(Dimethylamino)pyridinium p-toluenesulfonate (4DMPT) has been successfully grown by solution growth method and its structural characterization has carried out by X-ray diffraction methods. Single crystal XRD study shows that the grown
- Jayamani, N.,Siva, V.,Sivaraj, G.
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- Copper-Mediated Radiofluorination of Aryl Pinacolboronate Esters: A Straightforward Protocol by Using Pyridinium Sulfonates
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Radiofluorination of arylboronic acids pinacol esters (arylBPin) mediated by copper triflate pyridine complex is one of the more promising synthetic approaches for the direct introduction of nucleophilic [18F]fluoride into non-activated arenes
- Antuganov, Dmitrii,Zykov, Michail,Timofeev, Vasilii,Timofeeva, Ksenija,Antuganova, Yulija,Orlovskaya, Victoriya,Fedorova, Olga,Krasikova, Raisa
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- Influence of Anion-Binding Schreiner's Thiourea on DMAP Salts: Synergistic Catalysis toward the Stereoselective Dehydrative Glycosylation from 2-Deoxyhemiacetals
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Amines are used as additives to facilitate or increase the host-guest chemistry between the thiourea and the anions of Bronsted acids. However, we here demonstrate, for the first time, the synergistic effect of the combination of DMAP/HCl/Schreiner's thio
- Ghosh, Titli,Mukherji, Ananya,Kancharla, Pavan K.
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p. 1253 - 1261
(2021/01/14)
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- A quantitative assessment of chemical perturbations in thermotropic cyanobiphenyls
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Chemical programming of the temperature domains of existence of liquid crystals is greatly desired by both academic workers and industrial partners. This contribution proposes to combine empirical approaches, which rely on systematic chemical substitution
- Guerra, Sebastiano,Dutronc, Thibault,Terazzi, Emmanuel,Guénée, Laure,Piguet, Claude
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p. 14479 - 14494
(2016/06/09)
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- HIGH MOLECULAR WEIGHT ZWITTERION-CONTAINING POLYMERS
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The present invention provides multi-armed high MW polymers containing hydrophilic groups and one or more functional agents, and methods of preparing such polymers.
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Paragraph 0299; 0300
(2014/02/16)
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- UV-irradiation cured organic-inorganic hybrid nanocomposite initiated by ethoxysilane-modified multifunctional polymeric photoinitiator through sol-gel process
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The UV-cured organic-inorganic hybrid nanocomposite (nano-Si-m-PI) was prepared through the photopolymerization of acrylic resin initiated by ethoxysilane-modified multifunctional oligomeric photoinitiator (Si-m-PI). The esterification reaction of 2-hydro
- Hu, Lihua,Shi, Wenfang
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experimental part
p. 1961 - 1968
(2012/07/14)
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- Dendrimers and Dendrimer Applications
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An activatable functionalised Nth generation dendrimer having: a core comprising a first monomer having at least two carboxylic acid functional groups; and N successive generations, where N=0 to 10, wherein each generation comprises: a second monomer having at least two alcohol functional groups, wherein at least one alcohol group is bonded to a carboxylic acid group of the first monomer of the prior generation, and an additional first monomer attached to a second alcohol function group of said second monomer of that generation; and the final generation having attached thereto at said second alcohol functional group of said second monomer, a moiety having a dicarboxylic acid functional group, activatable by treatment with a carboxylic acid activating reagent such that reactivity of the carboxylic acid functional group is increased. The dendrimer, when activated, may be used in applications such as polymer crosslinking and/or nanoshell production.
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Page/Page column 19
(2011/10/02)
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- Fluorescent macromolecular perylene diimides containing pyrene or indole units in bay positions
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Novel, symmetric and unsymmetric perylene diimide dyes with pyrene or indole units in the bay positions of the perylene ring were synthesized and characterized using FT-IR, 1H and 13C NMR, MS, UV-Vis spectra and cyclic voltammetry. The λmax in different solvents were in the range 526-585?nm and emission wavelengths of the dyes exhibited positive solvatochromism with increasing solvent polarity. Long wavelength emissions >750?nm of dyes with pyrene units displayed charge-separated state of perylene-pyrene system. Dyes with pyrene or indole units showed greater photostability in toluene than dyes which did not contain these bulky substituents. Incorporating electron-donating indole substituents lowered the band gap energies and, therefore, the HOMO energy levels were increased. The energy density and shape of the molecular orbitals were calculated theoretically.
- Din?alp, Haluk,Kizilok, ?evki,I?li, Siddik
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experimental part
p. 32 - 41
(2010/11/18)
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- Methods of manufacture of 2'-deoxy-beta-L-nucleosides
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The present invention relates to the synthesis of 2′-deoxy-β-L-thymidine, 2′-deoxy-β-L-uridine and 2′-deoxy-β-L-cytidine, and their derivatives, such as the 3′-O-acyl or 3′,5′-O-diacyl prodrugs, including the 3′-O-L-aminoacyl and 3′,5′-O-L-diaminoacyl prodrugs, and particularly the 3′-O-L-valinyl and 3′,5′-O-L-divalinyl prodrugs.
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Page/Page column 25
(2008/06/13)
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- Chiral compounds with liquid crystalline nature
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Compounds of the following formula exhibit broad chiral smectic C phases and have excellent stability: STR1 wherein R represents a hydrocarbon group having 1 to 14 carbon atoms, X is a halogen atom, and R1 represents a branched alkyl group having 3 to 8 carbon atoms.
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