Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 19 of 19 for “"dimethylaniline"”.
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Cyclodextrin-based rotaxanes for material science applications
… 1.17 having a stilbene-based axle and 3,5-dimethylaniline blocking groups, as well as the rotaxane 1.18 having an azobenzene-based axle and 2,6-dimethylaniline blocking groups were prepared to complete the set of rotaxanes 1.9, 1.10, 1.17 and 1.18 with 2,6-dimethylaniline and …
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Cyclodextrin-based rotaxanes for material science applications
… 1.17 having a stilbene-based axle and 3,5-dimethylaniline blocking groups, as well as the rotaxane 1.18 having an azobenzene-based axle and 2,6-dimethylaniline blocking groups were prepared to complete the set of rotaxanes 1.9, 1.10, 1.17 and 1.18 with 2,6-dimethylaniline and …
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Mechanisms of toxicity and carcinogenicity of three alkylanilines
… in human carcinogenesis. Specifically, 2,6-dimethylaniline (2,6-DMA), 3,5-dimethylaniline (3,5-DMA), and 3-ethylaniline (3EA) have been associated with an increased risk of human bladder cancer, independent of cigarette smoking, in a published case-control study. Understanding the metabolic …
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A Radical Approach to Syntheses and Mechanisms
… performed by previous researchers indicate N,N-dimethylaniline radical cations deprotonate in the presence of the bases acetate and pyridine. By studying the electrochemical kinetics of the reaction of para substituted N,N-dimethylaniline radical cations with acetate anion, we have produced …
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A Kinetic and Thermodynamic Study of Exciplex Fluorescence Quenching by Ion Pairs
… to quench the fluorescence of the pyrene-N,N-dimethylaniline exciplex in solvents of low dielectric constant. Linear Stern-Volmer plots are obtained for quenching of both lifetime and intensity in dioxane. However, mechanistic complications are implied by intercepts exceeding unity and by the …
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Directed Ortho-Metalation of Dimethylarylamines
… of the extents of ortho-lithiation of dimethylaniline [DMG = - N(CH3)2] and dimethylbenzylamine [DMG = -CH2N(CH3)2] have now been achieved using novel combinations of solvent, temperature and increments of catalyst. Studies of substituted dimethylanilines and dimethylbenzylamines …
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Touch-and-go chemistry: development of materials for and demonstration of a contact-initiated polymerization
… Particles were then functionalized with N,N-dimethylaniline (DMA) and benzoyl peroxide (BPO) groups which co-initiate free radical polymerizations. The mechanism by which they co-initiate requires contact between the DMA and BPO molecules. When DMA and BPO were conjugated to complementary …
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Carbon-Carbon Bond Formation Via o-Lithiointermediates
… solvents at 60°C, o-lithiation of anisole and dimethylaniline can be effected in >95% yields. The first step in the DoM process involves preparation of solid samples of these o-lithiointermediates. Completing the sequence, the second step concerns formation of a new arene-derivative bond at the …
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Liquid collection efficiencies after supercritical fluid extraction
… test mix consisting of acetophenone, <i>N,N</i>-dimethylaniline, naphthalene, <i>n</i>-decanoic acid, 2-naphthol, and <i>n</i>-tetracosane was spiked onto sand and extracted with supercritical carbon dioxide to evaluate the collection efficiency of various solvents and solvent mixtures. Nine …
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Synthesis and application of Fischer carbene complexes of group 6, 8 and 9 transition metals
… substituents (thiophene, 2,3´-bithiophene, N,N-dimethylaniline and ferrocene) to modify the reactivity of these complexes. Synthetic challenges included metal acylate O-alkylation to yield the desired FCCs, in contrast to the commonly found metal alkylation that leads to related ketone formation …
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Inter-Relationships Between Chemistry, Network Structure and Properties of Chain Growth Dimethacrylate Thermosets
… cured with styrene, especially those containing dimethylaniline and cobalt naphthenate as accelerators. Scanning electron microscopy indicates a smooth surface for the cycloaliphatic networks cured with methyl methacrylate and a pitted surface for the aromatic networks cured with styrene. Water …
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The study of [beta]-cyclodextrin interactions with sugars using "inhibition kinetics" and the bromination of pyrimidine derivatives
… (2-DAPy), aniline and N,N -dimethylaniline were also studied.
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Design, Synthesis and Study of Novel Nucleobase Analogs
… coupling reaction between 5-diazouracil and N,N-dimethylaniline. Fluorescence quenching experiments were performed between the nucleobase quencher and the fluorophores phenylpyrrolocytidine (pC), and pyrene to determine viable FRET pairs for use in molecular beacon constructs.
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Advances in alkali-metal-mediated manganation and comparisons with magnesiation
… Highlights include the meta manganation of N, N-dimethylaniline [(TMEDA)Na(TMP)(m-C₆H₄-NMe₂)Mn(TMP)] (21), the para manganation of N, N-diisopropylaniline [(TMEDA)Na(TMP)(p-C₆H₄NiPr₂)Mn(TMP)] (22) and the novel 6-position mangantion of N, N-dimethyl-1-naphthylamine …
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New Polyazine-Bridged Ru(II),Rh(III) and Ru(II),Rh(I) Supramolecular Photocatalysts for Water Reduction to Hydrogen Applicable for Solar Energy Conversion and Mechanistic Investigation of the Photocatalytic Cycle
… the RuII,RhI species in the presence of DMA (N,N-dimethylaniline). The observed H2 production from water using [(bpy)2Ru(dpp)RhCl(tpm)](PF6)4 and [(bpy)2Ru(dpp)RhCl(tpy)](PF6)4 established that two halides on RhIII are not necessary in the dpp-bridge RuII,RhIII supramolecular …
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Design and synthesis of organic chromophores for imaging, lithography and organic electronics
… acid, nitric oxide, and nitrogen dioxide. NN-Dimethylaniline was capable of being nitrated by the reactive, electrophilic NOx photodegradation products of RDX and PETN. A series of 9,9-disubstituted 9,10-dihydroacridines (DHAs) were synthesized from either N-phenylanthranilic acid methyl ester …
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Design and Modification of Polyazine-Bridged Ru(II),Rh(III) Bimetallic and Trimetallic Supramolecular Complexes Applicable in Solar Energy Harvesting for the Photocatalytic Reduction of Water to Hydrogen
… presence of the sacrificial electron donor N,N-dimethylaniline (DMA) results in multi-electron collection at Rh, thereby converting Rh(III) to Rh(II) to Rh(I) accompanied by halide loss at each step. This establishes the Ru(II),Rh(III),Ru(II) and Ru(II),Rh(III) complexes as photochemical …
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Polyazine-Bridged Ru(II),Pt(II) Trimetallic and Tetrametallic Supramolecular Complexes Exhibiting Unusual Excited State Dynamics Important in Catalysis and PDT Drug Development
… and the sacrificial electron donor, DMA (N,N-dimethylaniline), the tetrametallic complexes collect electrons on the ligand À* orbitals of the central Ru to serve as photoinitiated electron collectors. The photocatalytic activity in H2 production is drastically impacted by BL" identity, …