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Showing 1 to 11 of 11 for “"aryl azides"”.
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Aryl Azides as Photoaffinity Labels for Estrogen Binding Proteins in the Rat Uterus
Made available in DSpace on 2014-12-10T23:02:06Z (GMT). No. of bitstreams: 1 7511579.pdf: 5060650 bytes, checksum: a860aa18e8d08ca9410b303e913a27d0 (MD5) Previous issue date: 1974
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Part One: Photochemistry of Aryl Azides. Chemical Properties of the Transient Intermediates. Part Two: Thermolysis of an Endoperoxide. Generation of an O-Xylylene Peroxide (Nitrene)
… The products of direct photolysis of the aryl azides can depend dramatically on the concentration of the azide and on the power of the light source. Direct irradiation gives the triplet aryl nitrenes, with relatively long-lived singlet-state precursors. The structures of these …
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Characterizing triplet azo biradical and corannulene- halogen complexes by laser flash photolysis
… two photo-reaction systems: 1) the photolysis of aryl azides in solution and in solid-state 2) the photo-reaction of corannulene in halogenated solvents.</p><p>Singlet aryl nitrene was formed upon irradiation of aryl azides, and the singlet nitrene could decay by intersystem-crossing to form …
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Reaction of allene with phenyl azide
… to gain greater insight into the reaction of aryl azides with allenes.
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Part I. Aromatic Fluorinations for Fluorine-18 Labeling of Estrogens. Part Ii. Bromodesilylation-Potential Method for Regiospecific Radiobromination of Aromatic Systems. Part Iii. Synthesis of Isohexestrol and Isohexestrol Derivatives
… fluorination methods, the decomposition of aryl azides and the decomposition of aryl triazenes, were investigated as methods potentially suitable for fluorine-18 labeling of estrogens. The aryl triazene method gives moderate yields in many systems, but fails with ortho methoxy or …
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Lewis acid catalysis in organic synthesis
… been developed for 1,3-dipolar cycloaddition of azides to terminal alkynes using CuCl-RTIL. This catalytical system gives only 1,4-disubstituted 1,2,3-triazoles. Reactions of Alkyl and aryl azides with a variety of terminal alkynes were successfully catalyzed using CuCl-RTIL catalytic system. …
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Carbon Nitride as a Heterogeneous Photocatalyst for Organic Transformations
… anilines are prepared by the cross-coupling of aryl halides with sodium azide in mild conditions. Mechanistic studies are performed to deduce the formation of anilines instead of aryl azides.
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Properties modification of nanopatterned surfaces functionalized with photo activated ligands
… patterning. I studied the photoactivation of aryl azides in gelatin matrix. Specifically, I used Azidocoumarin 151 as a test molecule to undergo two-photon activation, and then measured the resulting photoluminescence. The activation of the Azidocoumarin 151 can be used to create arbitrary 3D …
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Developing C–H bond Functionalization, Organocatalytic Hydrophosphination Reactions and Anti-Invasion Agents
… and without pyridine via nitrene capture with aryl azides (3.2a, 3.2b, 3.6a, and 3.6b) and demonstrated Lewis based enhanced toluene amination through a bimetallic pathway. In chapter 5, we will discuss the phosphine-catalyzed regio- and stereoselective hydrophosphination of 1,3-diynes. Diynes …
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FREE-BASE PORPHYRIN FOR CO2 ACTIVATION
… been much less studied and the conversion of N aryl aziridines into corresponding oxazolidinones resulted challenging and only few examples of efficient catalysts have been reported up to now. This work is devoted to the study of porphyrins as organic catalysts of the carbon dioxide …