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- Investigations of cobalt complexes containing four-membered carbocyclic rings.
- Carbonyl compounds. ; Cobalt carbonyl complexes.
- Dartmouth Dissertations
- Sulfobetaines as novel inhibitors of squalene synthase. A model system for Δ4-3-ketosteroid isomerase.
- Cholesterol -- Synthesis. Enzymes -- Inhibition. Isomerases -- Synthesis.
- This thesis describes the synthesis of sulfobetaines having the general structure $\rm RN\sp{+}(CH\sb3)\sb2(CH\sb2)\sb{x}SO\sb{3\sp{-}}$ as novel inhibitors of squalene synthase. Squalene synthase reductively couples two molecules of farnesyl...
- Dartmouth Dissertations
- An electron paramagnetic resonance spectroscopic investigation of group 6 (Cr, Mo and W) transition metal complexes.
- Transition metal complexes. Electron paramagnetic resonance spectroscopy.
- Dartmouth Dissertations
- Investigation of the reactivity of vinylimidazoles.
- Imidazoles. ; Heterocyclic compounds -- Synthesis.
- Dartmouth Dissertations
- Synthetic approaches to pyridocarbazoles via new indole and pyridine lithiaton methodology.
- Antineoplastic agents. ; Pyridocarbazoles.
- Dartmouth Dissertations
- Approaches to the synthesis of sarpagine alkaloids.
- Alkaloids. ; Sarpagine.
- Dartmouth Dissertations
- A study of the 13c NMR spectrum of indole
- Indole. ; Nuclear magnetic resonance spectroscopy.
- Dartmouth Dissertations
- Synthesis of porphobilinogen and studies on the synthesis of cobyric acid.
- Tetrapyrroles -- Synthesis. ; Porphyrins -- Synthesis. ; Vitamin B12 -- Synthesis.
- This thesis describes the synthetic study of two biologically related natural products: porphobilinogen (PBG) and cobyric acid. PBG is the key intermediate in the biosynthesis of all naturally occurring tetrapyrrolic 'pigments of life', including...
- Dartmouth Dissertations
- Investigation into the syntheses and reactions of 2-nitroindoles and 3-nitroindoles and discovery of novel syntheses of the pyrrolo[3,4-b]indole and pyrrolo[2,3-b]indole ring systems.
- Carbazole -- Synthesis. ; Indole. ; Pyrroles.
- A new synthetic approach to both pyrrolo[2,3- b]indoles and pyrrolo[3,4- b]indoles by the reaction of 3-nitro-1-(substituted)indoles with functionalized isocyanides is presented. The reaction between 3-nitro-1-(phenylsulfonyl)indole (185) and ethyl...
- Dartmouth Dissertations
- The crystal chemistry of the copper vanadate and vanadium oxide bronze minerals from the fumaroles of Izalco volcano, el Salvador.
- Vanadium. ; Vanadates. ; Izalco (El Salvador : Volcano).
- Dartmouth Dissertations
- Highly fluorinated keto-enol systems.
- Ketones. ; Enols. ; Alkenes. ; Organofluorine compounds.
- Dartmouth Dissertations
- Approaches to the synthesis of tetracyanocyclobutadiene dianon: Synthesis and NMR investigation of perfluorocyclooctatetraene derivatives.
- Cycloalkanes. ; Cyclobutadiene. ; Nuclear magnetic resonance.
- Dartmouth Dissertations
- Structure based drug discovery of potent and specific antimicrobial agents for anthrax.
- Bacillus cereus. Anti-infective agents -- Design. Enzyme inhibitors -- Therapeutic use. Enzyme inhibitors -- Structure-activity relationships. Folic acid -- Antagonists. Anthrax -- Treatment. Tetrahydrofolate Dehydrogenase.
- Infections by pathogenenic microbes are an increasing problem due to a lack of universal vaccines and growing resistance to current antibiotics. The constant battle for researchers in the fight against pathogens is to design new and improved drugs...
- Dartmouth Dissertations
- Toward the syntheses of tetrapyrroles: cobyric acid and chlorins.
- Tetrapyrroles -- Synthesis.
- Macrocyclic tetrapyrroles are essential to life. In nature, they play important roles in living organisms, such as oxygen transportation and photosynthesis. Pentynoic acids are versatile precursors for preparing pyrrolines and higher homologues....
- Dartmouth Dissertations
- New pathways of NAD+ metabolism and longevity.
- NAD (Coenzyme) -- Metabolism. Nicotinamide -- Mechanism of action. Genetic regulation. Nicotinamide-beta-riboside.
- NAD+ is an essential co-enzyme for hydride transfer enzymes and a consumed substrate of multiple signaling enzymes including the sirtuins, a family of protein lysine deacetylases shown to regulate longevity in a wide array of organisms. We have...
- Dartmouth Dissertations
- Synthetic studies of Munchnone reactivity and applications and the total synthesis of cyclopenta[B]indole natural products / by Justin M. Lopchuk.
- Chapter 1: Munchnones and mesoionic heterocycles The reactivity, regioselectivity, and synthetic applications of munchnones (1,3-oxazolium-5-olates) is a common theme which runs through Chapters 2-5. The definition, structure, and reactivity of...
- Dartmouth Dissertations
- Alterations in the production of bacteriochlorophyll a and okenone in purple sulfur bacteria : implications for the interpretaion of their biomarkers / by Derek A. Smith.
- Purple sulfur bacteria (PSB) can dominate the nitrogen, carbon, and sulfur cycles in anoxic ecosystems via their anoxygenic photosynthetic metabolisms and are the only producers of the carotenoid, okenone, a biomarker targeted for photic zone...
- Dartmouth Dissertations
- Characterization of the role of Bacillithiol in Staphylococcus aureus / by Ana Catalina Posada.
- As methicillin-resistant Staphylococcus aureus (MRSA) hospitalizations keep increasing, the understanding of the characteristics that make one isolate more successful over another is paramount. Strain variations among Staphylococcus aureus observed...
- Dartmouth Dissertations
- Synthetic studies on sarpagine alkaloids.
- Alkaloids. Organic compounds -- Synthesis.
- Dartmouth Dissertations
- Group 6B metal complexes of three and four membered organic rings.
- Organometallic compounds. Transition metal compounds.
- Dartmouth Dissertations
- Synthesis of furans
- Furans.
- Dartmouth Dissertations
- Oxidative demethylation at C-4 of steroids.
- Methylation. Hydroxylation. Steroids.
- Dartmouth Dissertations
- Biochemistry of dioxygenated triterpenoids and steroids.
- Cholesterol. Squalene. Steroids.
- Dartmouth Dissertations
- Conformationally restricted bis(9-aminoacridine)s : a chemical and biological study
- Acridine.
- A series of conformationally restricted bis(9-amino-acridine) derivatives were designed, synthesized, and then evaluated for their chemical and biological behavior. The novel compounds were prepared by treating selected diamines with a...
- Dartmouth Dissertations
- Serpentine/chlorite and illite/smectite in the Tuscaloosa formation: origins, chemistry, mineralogic structures, and oxygen isotope compositions.
- Silicate minerals -- Louisiana. Silicate minerals -- Mississippi. Formations (Geology) -- Louisiana. Formations (Geology) -- Mississippi.
- Dartmouth Dissertations
- A new synthetic route to B-ring derivatives of TMD
- Bicyclic compounds -- Synthesis
- Dartmouth Dissertations
- Reactive intermediates in chromium carcinogenesis.
- Chromium -- Toxicology. Carcinogenesis.
- Dartmouth Dissertations
- A mechanistic investigation of the ring expansion of vinylcyclopropenes to metallacyclohexadienes and cyclopentadienyl complexes through the use of isotopically labelled ligands.
- Organometallic chemistry. Isomerization. Organoiridium compounds. Organoiron compounds. Organorhodium compounds.
- Dartmouth Dissertations
- Fluorinated ligands in organometallic chemistry.
- Fluorocarbons. Ligands.
- Dartmouth Dissertations
- Structural modifications of interleukin-2 with mutations at positions 47 and 65.
- Interleukin-2. Mutagenesis.
- Dartmouth Dissertations
- Investigation of the reactivity of nitrogen substituted oxyallyl cations.
- Nitrogen compounds. Allyl compounds.
- Dartmouth Dissertations
- Synthetic studies of ellipticine alkaloids and structurally related compounds.
- Alkaloids -- Synthesis.
- Dartmouth Dissertations
- Syntheses of transition metal complexes containing fluorinated ligands.
- Ruthenium compounds -- Synthesis. ; Organorhodium compounds -- Synthesis. ; Organometallic chemistry.
- Dartmouth Dissertations
- Spatially resolved matrix isolation spectroscopy.
- Infrared spectra. ; Spectrum analysis.
- Dartmouth Dissertations
- The synthesis and chemistry of highly fluorinated cyclopentadienes.
- Cyclopentadiene. ; Organofluorine compounds.
- Dartmouth Dissertations
- Novel syntheses of polycyclic aromatic hydrocarbons.
- Aromatic compounds. ; Polycyclic compounds. ; Diels-Alder reaction.
- Dartmouth Dissertations
- Syntheses and synthetic transformations of [gamma]-ketocyclobutanones
- Ketones.
- Dartmouth Dissertations
- Synthesis of Elaeocarpus alkaloids via pyrrolinium ion trapping.
- Elaeocarpaceae. ; Alkaloids -- Synthesis. ; Pyrrolizidines.
- Dartmouth Dissertations
- Versatile approaches to the coryantheine-sarpagine alkaloids.
- Alkaloids.
- Dartmouth Dissertations
- Intramolecular general base catalysis of proton abstraction alpha to carbonyl groups.
- Carbonyl compounds. ; Chemical kinetics.
- Dartmouth Dissertations
- Synthetic, structural and dynamic investigations of organometallic complexes containing cyclopropenyl and olefin ligands.
- Organometallic compounds. ; Ligands (Biochemistry). ; Alkenes.
- Dartmouth Dissertations
- Synthetic approaches to indolo[2,3-a]quinolizine alkaloids.
- Indole alkaloids -- Synthesis.
- Dartmouth Dissertations
- Synthesis and kinetic studies of a .delta.4-3-ketosteroid isomerase model.
- Isomerases. Enzymes. ; Steroids.
- Dartmouth Dissertations
- A spectral survey of indoloquinolizidine alkaloids
- Indole alkaloids -- Spectra
- Dartmouth Dissertations
- The Plio-Pleistocene structural and stratigraphic evolution of the Eastern Potwar Plateau, Pakistan
- Geology, Stratigraphic -- Pliocene. ; Geology, Stratigraphic -- Pleistocene. ; Geology -- Pakistan -- Eastern Potwar Plateau
- Dartmouth Dissertations
- I. Synthesis and cycloaddition reactions of 4H-furo(3,4-b)indoles; II. Novel regioselective fluorobenzyne cycloadditions to furans.
- Alkaloids -- Synthesis. ; Carbazole. Furans. ; Condensation.
- Dartmouth Dissertations
- Functionalization of fluorocarbons.
- Fluorocarbons -- Synthesis. Fluorocarbons -- Derivatives. Activation (Chemistry). Polytef -- Surfaces. Organofluorine compounds -- Synthesis.
- The great strength of the C-F bond has enabled fluorocarbons to find many industrial and domestic applications, and makes C-F activation a chemical and technical challenge akin to that of C-H bond activation in hydrocarbons. In our mission to...
- Dartmouth Dissertations
- C₂-Symmetric Bis(phosphines) and Their Metal Complexes : Synthesis, Materials Application, and Screening Racemic Catalysts / Sanderson, Matthew David
- Chapter 1: The dimethylation of the C2-symmetric Pt-phosphido complex Pt((R,R)-Me-DuPhos)(IsPCH2PIs) (Is = 2,4,6-(iPr)3C6H2) to yield rac- and meso- [Pt((R,R)-Me-DuPhos)(IsMePCH2PMeIs)][OTf]2 represents an interesting case of the Horeau principle...
- Dartmouth Dissertations
- Development of new methods for the synthesis of indolines and quinolizidines / by Hui Li
- I. (3 + 2) Cycloaddition Reactions of Oxyallyl Cationic Intermediates with Indoles Cyclopenta- and cyclohexa[b]indolines are ubiquitous molecular skeletons in natural products and pharmaceutical agents. We have developed (3 + 2) cycloaddition...
- Dartmouth Dissertations
- Implications of motion planning : optimality and K-survivability / by Yu-Han Lyu
- We study motion planning problems, finding trajectories that connect two configurations of a system, from two different perspectives: optimality and survivability. For the problem of finding optimal trajectories, we provide a model in which the...
- Dartmouth Dissertations

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