Index Catalog // ScholarsArchive@OSU

A pyrolysis of cis-1-trimethylsiloxy-1-cyclopropyl-3-cyclononene : the thermal isomerization of 2-phenyl-1-trimethylsiloxy-1-vinylcyclononane

Creator:: Choi, Young Bok
Abstract:: Part 1 The pyrolysis of cis-1-trimethylsiloxy-1-cyclopr opyl-3-cyclononene in the temperature range 285-350° is described. Instead of siloxy-Cope rearrangement, undesired desiloxylation took place. Part 2 Gas-phase pyrolytic rearrangement of 2-phenyl-1-trimethylsiloxy-1-vinylcyclononane was investigated in a static system in the temperature range 213-330°. It was discovered that three major products resulted: cis- and...
Resource Type:: Masters Thesis
Full Text:: incor- porated into a ring, e, g., ethyl-l-cyclohexenylallylcyanoacetate (29). CN COOEt 170 CN C

The reactions of amines and grignard reagents with sulfinyl sulfones

Creator:: Young, John Roy
Resource Type:: Masters Thesis
Full Text:: Young A THESIS submitted to Oregon State University in partial fulfillment of the requirements for

Mass spectrometric studies on peptides and proteins : conformations of Escherichia coli Thioredoxin and its alkylated adducts studied by hydrogen/deuterium exchange and HPLC-electrospray ionization mass spectrometry

Creator:: Kim, Moo-young
Abstract:: E. coli thioredoxin (TRX) was modified by the episulfonium ion derived from S-(2-chloroethyl)glutathione (CEG) or S-(2-chloroethyl)cysteine (CEC). The alkylation site was located at Cys-32, which was confirmed by tandem mass spectrometry. Two forms of native TRX, Oxi- and Red-TRX, and two modified TRXs, GS- and Cys-TRX, were examined by hydrogen/deuterium...
Resource Type:: Dissertation
Full Text:: Moo-young Kim A THESIS submitted to Oregon State University in partial fulfillment of the

Studies towards the total syntheses of (+)-phomactins A, D and G

Creator:: Schwartz, Keith D.
Abstract:: Studies towards the total synthesis of (+)-Phomactin A (1), D (6), and G (9), fungal metabolites with unique molecular architecture and pronounced biological activity, are described. These studies resulted in the synthesis of advanced intermediates 354 and 356, which contain all of the carbon atoms of 1, 6 and 9....
Resource Type:: Dissertation
Full Text:: September 23, 2009. Title: Studies Towards the Total Syntheses of (+)-Phomactins A, D and G. Abstract

Sulfhydryl and disulfide changes in young wheat seedlings during vernalization

Creator:: Ellis, Robert William
Abstract:: A study of the SH and SS content levels during vernalization of wheat was made. In order to carry out the study, a rapid analytical technique was worked out which allowed fast sequential analyses of the samples of wheat tissue. Two techniques were used: a) an amperometric titration method and...
Resource Type:: Masters Thesis
Full Text:: (reagent grade) containing 14 g of mercuric acetate (reagent grade) was added slowly a solution of 7. 1 g

Chemical compositional studies of marginal rift and plateau basalts from Saudi Arabia

Creator:: Coles, D. G.
Abstract:: The analysis of 64 rock samples from Saudi Arabia and three samples from the axial trough of the Red Sea has been done. Instrumental neutron activation analysis (INAA) was the analytical tool used for the analysis of at least 18 and as many as 24 elements in these 67 rock...
Resource Type:: Masters Thesis
Full Text:: crew at the OSU Triga Reactor for irradiations and prompt service. A. G. Johnson and his health

The relationship between pantothenic acid and vitamin G

Creator:: Holaday, Duncan Asa
Resource Type:: Masters Thesis
Full Text:: THE RELATIONSHIP BETWEEN PANTOTHENIC ACID AND VITAMIN G by DUNCAN ASA HOILADAY A THESIS

Part I: Synthetic Studies Toward Mandelalide A and Madeirolide A; Part II: Synthesis of Mandelalide/Madeirolide Hybrid Structures

Creator:: Li, Jinming
Abstract:: Mandelalide A has attracted considerable interest from the synthetic community due to its intriguing structure and important cytotoxic activity. Madeirolide A, a structurally related macrolide, shows promising antifungal activity but no appreciable anticancer activity. This dissertation describes synthetic studies toward mandelalide A, madeirolide A and their hybrid structures. Part I...
Resource Type:: Dissertation
Full Text:: . Eur. J. 2010, 16, 12512. (c) Blunt, J. W.; Copp, B. R.; Keyzers, R. A.; Munro, M. H. G.; Prinsep, M

Enantioselective Total Syntheses of Quinolizidine Lycopodium Alkaloid Cermizine D and Cytotoxic Marine Macrolide Mandelalide A

Creator:: Veerasamy, Nagarathanam
Abstract:: The enantioselective total synthesis of quinolizidine-containing natural product cermizine D and formal syntheses of senepodine G and cermizine C has been achieved. These natural products are members of the lycopodium alkaloids, which have attracted significant attention due to their exciting biological activities and the diverse structural scaffolds. Key steps in...
Resource Type:: Dissertation
Full Text:: cermizine C (1.9), senepodine G (1.8) and lasubines I (1.11) & II (1.12). Only a couple of reports were

Expanding the scope of a Diels-Alder approach to biaryl synthesis

Creator:: Schwartz, Johanna Perkins
Abstract:: A Diels-Alder approach to biaryls (DAB) has been applied towards the synthesis of highly substituted, programmable biaryl templates. Tri- and tetra-ortho-substituted biaryls can be produced in just three to four steps from commercially available materials utilizing the Diels-Alder [4+2] cycloaddition. The methods described herein will illustrate the ability of mono...
Resource Type:: Dissertation
Full Text:: : Rich G. Carter A Diels-Alder approach to biaryls (DAB) has been applied towards the synthesis

Part I: Synthetic Studies toward C10-functionalized Lycopodium Alkaloids. Part II: Exploration of the Pummerer Cyclization and Its Application to the Total Syntheses of the Abietane Diterpenoids

Creator:: Li, Xin
Abstract:: This dissertation is separated into two parts according to the two major distinct research projects. In Part I, the full account of synthetic studies toward C10-functionalized lycopodium alkaloids is described. In Part II, the detailed discussion on the exploration of the Pummerer cyclization methodology and its application to the total...
Resource Type:: Dissertation
Full Text:: .; Samame, R. A.; Suryn, G.; Burtea, A.; Rychnovsky, S. D. Org. Chem., 2018, 83, 8914–8925. 17. Chu, L

Part I: Total synthesis of marine macrolide amphidinolide F and synthetic studies toward amphidinolide C; Part II: Computational study on proline sulfonamide-catalyzed aldol reaction

Creator:: Mahapatra, Subham
Abstract:: More than 30 members of the diverse amphidinolide family of biologically active macrolides have been isolated over last three decades. From this family, amphidinolides C and F stand among the most complex and densely functionalized affiliates. Recently, we have accomplished the first total synthesis of amphidinolide F. The all-carbon framework...
Resource Type:: Dissertation
Full Text:: efforts resulted in the synthesis of several amphidinolides including amphidinolides A,5 B,6 E,7 G and H

Fluorinated and deuterated surrogates for quantifying microbial transformation of chlorinated ethenes and ethanes in anaerobic groundwater

Creator:: Ennis, Elliot G.
Abstract:: Chlorinated aliphatic hydrocarbons (CAHs) such as vinyl chloride (VC) and 1,-2 dichioroethane (DCA), are wide-spread groundwater pollutants found at many contaminated field sites around the world. Quantitative tools are needed to determine the in situ rates of VC and DCA transformation to ethene in contaminated groundwater. The objective of this...
Resource Type:: Masters Thesis
Full Text:: G. Ennis for the degree of Master of Science in Chemistry presented on June 3, 2005 Title

Himeradine A : synthetic efforts towards himeradine A and related natural products, a Michael reaction focused approach

Creator:: Collett, Nathan D.
Abstract:: Lycopodium alkaloids have generated enormous amounts of interest from the scientific community, both as synthetic targets and for their medicinal properties. Herein is described work towards a unifying approach to large segments of the Lycopodium family. An organocatalyzed intramolecular heteroatom Michael reaction method, for the construction of piperidine and piperizine...
Resource Type:: Dissertation
Full Text:: 1990, 9, 339–341. (d) Nikonorow, M. Acta Polon. Pharm. 1939, 3, 23-56. (e) Ortega, M. G.; Agnese, A. M

A Diels-Alder approach to biaryl synthesis

Creator:: Ashburn, Bradley O.
Abstract:: An expedient approach to the synthesis of a wide range of highly programmable biaryl templates has been accomplished. Utilizing the Diels-Alder [4+2] cycloaddition, a wide range of tri- and tetra-ortho-substituted biaryls have been synthesized in only three to four steps from commercially available materials. We have successfully synthesized entire classes...
Resource Type:: Dissertation
Full Text:: , A. J. Am. Chem. Soc., 2004, 126, 12897. (c) Burgett, A. W. G.; Li, Q.; Wei, Q.; Harran, P. G

Synthetic studies toward the total synthesis of azaspiracid-1

Creator:: Su, Dong
Abstract:: Azaspiracid-1, a novel marine toxin that contains 9 rings and 20 stereogenic centers, has drawn considerable attention from synthetic groups worldwide due to its structural complexity, which includes a unique trioxabisspiroketal fused to a tetrahydrofuran ring (ABCD rings), a piperidine-tetrahydrofuran spiroaminal system fused to a 2,9-dioxabicyclo[3.3.1]nonane system (FGHI rings), a...
Resource Type:: Masters Thesis

Evaluation of Bacterial F1FO-ATPase Inhibitors for Synergistic Effects

Creator:: Heppe, Kenan G.
Abstract:: F1FO-ATP synthase targeting antimicrobials apoptolidin 1 (A1), (+)-erythromefloquine, and oligomycin were tested in vitro for synergistic minimum inhibitory concentrations against Staphylococcus aureus. Synergy was strictly defined as inhibition by at most 25% the MIC of each participating drug. Ampicillin, with an MIC of 0.8 ug/mL, served as a negative control....
Resource Type:: Honors College Thesis
Full Text:: with enough willpower. I will forever be in debt to the wisdom he displayed at such a young age, and

Copper and iron chalcogenides for efficient solar absorption

Creator:: Platt, Heather A. S.
Abstract:: This dissertation outlines two approaches for improving the efficiency and reducing the cost of photovoltaic energy generation. First, the structures of known binary copper and iron compounds are used to choose the promising compositions Fe₂XS₄ (X = Si, Ge), Cu₃TaQ₄ (Q = Se, Te), and BaCuQ'F (Q' = S, Se,...
Resource Type:: Dissertation
Full Text:: mythesis_Platt.dvi AN ABSTRACT OF THE DISSERTATION OF Heather A

A unified approach for the total synthesis of C₁₀-functionalyzed Lycopodium alkaloids

Creator:: Saha, Mrinmoy
Abstract:: Lycopodium alkaloids have shown widespread and noteworthy biological activity, consisting of over 250 known natural products. Moreover, their structural complexity and diversity have attracted considerable attention from numerous laboratories including our own. Recently, we have developed a unified approach that would provides access to numerous, previously unprepared C₁₀-functionalized lycopodium alkaloids....
Resource Type:: Dissertation
Full Text:: Sinica 2010, 31, 649-664. 2. (a) Zhang, Z., Wang, X.; Chen, Q.; Shu, L.; Wang, J.; Shan, G. Zhonghua

A study of the chemistry of the dissolution of certain refractory minerals

Creator:: Classen, Aloysius Joseph
Resource Type:: Masters Thesis
Full Text:: A study of the chemistry of the dissolution of certain

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