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 9 of 9 for “"single electron transfer (SET)"”.
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The elucidation of single electron transfer (SET) mechanisms in the reactions of nucleophiles with carbonyl compounds
… that the rate limiting step is heterogeneous electron transfer. Ring opening of the radical anion generated from <b>20</b> results in a 9:1 ratio of the 3° and 1° distonic radical anions. The rate constant for ring opening has been estimated to be k ≥ 10⁷s⁻¹ with a calculated (AM1) enthalpy of …
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Synthesis of Dimeric Pyrrole-Imidazole Alkaloids
… synthetic studies support the possibility that a single-electron transfer (SET) reaction and a pinacol-type rearrangement may be used in nature as a way to produce ageliferin and massadine.
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Evaluation of 1,1-Dimethyl-5,7-Di-T-Butylspiro[2.5]Octa-4,7-Dien-6-One as a Mechanistic Probe for Single Electron Transfer
Single electron transfer (SET) mechanisms are becoming ubiquitous in modern organic chemistry. However, it is often difficult to distinguish SET mechanisms from polar mechanisms. Kinetics, products and product distributions, and response to perturbation in solvent and substituents are often …
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Oxidation of Tetrahydropyridines by MAO B Biomimetics: Mechanistic Studies
… been debated for just as long. Proponents of the single electron transfer (SET) pathway of oxidation faced severe critiques in that the hypothesized radical intermediates arising from the SET pathway were never directly observed. Work performed herein provides that exact evidence using biomimetics …
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Metabolic Studies on 1-Cyclopropyl-4-phenyl-1,2,3,6-tetrahydropyridinyl Derivatives by HPLC and LC-ESI/MS
… of MAO-B which presumably is processed by a single electron transfer (SET) pathway to generate a bioalkylating species. These results have prompted us to study how the cytochromes P450, the major liver drug metabolizing oxidases, interact with N-cyclopropyl analogs of MPTP. HPLC with diode …
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Mechanistic Studies on the Monoamine Oxidase B Catalyzed Oxidation of 1,4-Disubstituted Tetrahydropyridine Derivatives
… amines. The overall process involves a two electron oxidation of the amine to the iminium with concomitantreduction of the flavin. Based on extensive studies with a variety of chemical probes, Silverman and colleagues have proposed a catalytic pathway for the processing of amine substrates …
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Radical anion rearrangements. aryl cyclopropyl ketyl anions
… often been employed as diagnostic probes for single electron transfer (SET) in organic chemical reactions. The implicit assumption in such studies is that the formation of rearranged product(s) can be ascribed to the intermediacy of a ketyl anion. Through a detailed examination of the decay of …
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Advanced manufacturing of sustainable materials
… depolymerization mechanism and discovered that single electron transfer (SET) and cleavage of the resulting radical cation served as the primary thermal trigger for cPPA depolymerization. These findings were extended to other modes of SET triggering, including photoredox catalysis. Incorporation …
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Synthesis of Insecticidal Mono- and Diacylhydrazines for Disruption of K+ Voltage-Gated Channels, and Elucidation of Regiochemistry and Conformational Isomerism by NMR Spectroscopy and Computation
… stronger base of the two nitrogens, we propose a single electron transfer mechanism that predicts the regiochemistry of arylhydrazines toward acylating agents better than the nucleophilicity model based on pKa values. While synthesizing the acylhydrazine library for assay against An. gambiae, NMR …