Index Catalog // ScholarsArchive@OSU

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:: Related Natural Products, a Michael Reaction Focused Approach. AN ABSTRACT OF THE DISSERTATION OF

Development of organocatalyzed, intramolecular heteroatom Michael addition and application towards alkaloid synthesis

Creator:: Carlson, Erik
Abstract:: Effective methods for the enantiopure formation of substituted piperidine rings are significantly important due to their presence in alkaloid products. A valuable method to form these ring systems would be via an intramolecular heteroatom Michael addition from the corresponding enone or enal. Described herein is a methodolgy that has been...
Resource Type:: Masters Thesis
Full Text:: Heteroatom Michael Addition NH O N OH Cbz Cbz H 2.362.31 1.27 (20 mol%) MeOH / DCE (1:1), -25°C 2 d

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:: Lycopodium Alkaloid Cermizine D and Cytotoxic Marine Macrolide Mandelalide A. Abstract approved

The synthesis of trisporic acids

Creator:: Prisbylla, Michael Paul
Abstract:: A total synthesis of the fungal hormones, trisporic acids A and B, is described, starting from a -methyltetronic acid 34. A Robinson annelation of 34 with ethyl vinyl ketone affords the lactone 33. Treatment of 33 with N-bromosuccinimide gave 97, which was hydrolyzed to the lactol 103. The reaction of...
Resource Type:: Dissertation
Full Text:: THESIS OF Michael Paul Prisbylla for the degree of Doctor of Philosophy in Chemistry presented on July

Advanced studies on the biosynthesis of the streptolidine moiety of streptothricin F

Creator:: Jackson, Michael D.
Resource Type:: Dissertation
Full Text:: Moiety of Streptothricin F AN ABSTRACT OF THE THESIS OF Michael D. Jackson for the degree of Doctor of

Studies toward the total synthesis of alkaloids : nagelamide A and D, agelastatin D, dragmacidin A-C, salacin and almazoles

Creator:: Tonsiengsom, Sorasaree
Abstract:: Studies toward the total syntheses of highly potent cytotoxic alkaloids including the bromopyrrole alkaloids and indole alkaloids were conducted and are described. Studies carried out in the course of this dissertation consist of five total syntheses of natural products that include bromopyrrole alkaloids nagelamide A, D and agelastatin D as...
Resource Type:: Dissertation
Full Text:: : STUDIES TOWARD THE TOTAL SYNTHESIS OF ALKALOIDS: NAGELAMIDE A AND D, AGELASTATIN D, DRAGMACIDIN A-C

Examination of low-lying rovibrational states of D₃[subscript h] oblate top molecules using high resolution FTIR and coherent anti-Stokes Raman spectroscopies

Creator:: Kirkpatrick, Robynne
Abstract:: Interesting rovibrational characteristics of two D_(3h) oblate symmetric top molecules were studied. Hamiltonian models for the fine rovibrational level structure of [1.1.1]propellane (propellane) were obtained for many low-lying modes. Ground state parameters (GSP) that are not exclusively K^(2n) dependent were obtained. Initially, the GSP were used in conjunction with density...
Resource Type:: Dissertation
Full Text:: particular mode number. The irreducible dimension of the mode is denoted d, where, for a two dimensional

Synthesis of Intercalation Compounds and Nanocomposites of Inorganic Layered Hosts

Creator:: Liyanage, Medagama Liyanage Amila Udayanga
Abstract:: Novel synthetic strategies are developed to prepare new intercalation compounds and nanocomposites with several layered hosts (NiPS₃, Na-montmorillonite, MoS₂ and MoO₃). In these products, alkali metals are ionic intercalates and linear polymers, dendrimers or amines act as co-intercalates. In addition to new synthetic approaches, new structures are identified and characterized....
Resource Type:: Dissertation
Full Text:: : _____________________________________________________________________ Michael M. Lerner Novel synthetic strategies are developed to prepare new

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:: DISSERTATION OF Keith D. Schwartz for the degree of Doctor of Philosophy in Chemistry presented

Graphite intercalation compounds containing tetra-n-alkylammonium cations

Creator:: Sirisaksoontorn, Weekit
Abstract:: Novel donor-type graphite intercalation compounds (GICs) containing tetra-n-alkylammonium (TAA) cations have been synthesized by using both ion-exchange and electrochemical methods. Structural and compositional data of the resulting TAA-GICs are investigated by using powder X-ray diffraction (PXRD), one-dimensional electron density calculations, thermogravimetric and elemental analyses, and capillary zone electrophoresis (CZE). A...
Resource Type:: Dissertation
Full Text:: Tetra-n-alkylammonium Cations. Abstract approved: Michael M. Lerner Novel donor-type

ScholarsArchive@OSU

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

Development of organocatalyzed, intramolecular heteroatom Michael addition and application towards alkaloid synthesis

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

The synthesis of trisporic acids

Advanced studies on the biosynthesis of the streptolidine moiety of streptothricin F

Studies toward the total synthesis of alkaloids : nagelamide A and D, agelastatin D, dragmacidin A-C, salacin and almazoles

Examination of low-lying rovibrational states of D₃[subscript h] oblate top molecules using high resolution FTIR and coherent anti-Stokes Raman spectroscopies

Synthesis of Intercalation Compounds and Nanocomposites of Inorganic Layered Hosts

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

Graphite intercalation compounds containing tetra-n-alkylammonium cations

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