Index Catalog // ScholarsArchive@OSU

Synthetic Studies towards Highly Oxygenated Furanyl Diterpenoids

Creator:: Goswami, Subir
Abstract:: The furanyl diterpenoid family of natural products has drawn the attention of both synthetic organic chemists and pharmacologists due to their complex structural architectures and diverse biological activity. Among them, wortmannin has been most extensively studied for biological activities. All these furanyl diterpenoids consist of a highly strained naptha[1,8-bc]furan core,...
Resource Type:: Dissertation
Full Text:: dibromoaryl ring to provide the key carboxylic acid intermediate; (d) regioselective Friedel-Crafts

Part I: Synthetic Studies Towards Viridin, Halenaquinone, and Obtusanal. Part II: Analysis, Synthesis, and Characterization of Coronene Derivatives.

Creator:: Waldenmaier, Pieter K.
Abstract:: This thesis is separated into three distinct projects. First, synthetic studies towards the furanosteroid viridin shown in part I. Second, synthetic studies towards the diperene obtusanal shown in part II. Third, the analysis, characterization, and synthesis of coronene derivatives towards their application in organic batteries shown in part III. Significant...
Resource Type:: Dissertation
Full Text:: . Unfortunately, the presence of oxygen (regardless of functional form) on the D ring prohibited cyclization

Exploring the Synthesis of 4-Deoxygadusol

Creator:: Jujjuri, Anantha Poojitha
Abstract:: Sunscreen products are used worldwide to protect the skin from ultraviolet radiation. However, some of the ingredients used in sunscreen products are fatal to coral reefs especially in areas where tourism is a large part of the economy. In this study, we explored a synthetic route to produce 4-deoxygadusol, which...
Resource Type:: Honors College Thesis
Full Text:: . UV benefits human health by synthesizing vitamin D and endorphins in the skin. Vitamin D is needed

Total Synthesis of Goniomitine : Development of Aminal and α-Amino Radicals in the Synthesis of Nitrogen-Rich Natural Products

Creator:: Vellucci, Jessica K.
Abstract:: Aminal radical intermediates were generated by the method of radical translocation and reacted in C-C bond forming reactions with electronically deficient alkenes (Schiedler et al. Org. Lett. 2012, 14, 6092). Aminal radical intermediates can participate in inter- and intra-molecular reactions using both Bu3SnH and (TMS)₃SiH as hydride donors. Carbon–carbon bonds...
Resource Type:: Dissertation
Full Text:: . Structure, Isolation, Synthesis and Biology, WILEY-VCH, Weinheim, 2008. 2 Vitaku, E.; Smith, D. T

The development of aminal radicals for the synthesis of nitrogen-rich natural products

Creator:: Schiedler, David A.
Abstract:: Organic compounds which contain one or more nitrogen atoms are especially important as they are disproportionately represented among biologically active molecules. As a result, significant effort has been focused on the development of methods for the synthesis of nitrogenous molecules. We identified the aminal as an under-explored functional group. Despite...
Resource Type:: Dissertation
Full Text:: with the acrylate acceptor and proceeded to the desired product. However, the rate of D atom

Topological and Dynamical Properties of Cyclically Presented Groups

Creator:: McDermott, Kirk M.
Abstract:: This dissertation investigates the structure and topological properties of cyclicallypresented groups. First, a family of groups called groups of type Z is considered. Withfew exceptions, the finiteness, asphericity, fixed point, and 3-manifold spine problemsare solved. Most groups of type Z have a central element of infinite order fixed by theshift....
Resource Type:: Dissertation
Full Text:: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 4.3.1 Cases (1) (c) and (d): Fibonacci Groups

Computational Investigation and Prediction of Mechanisms and Stereocontrol in Complex Organic Reactions

Creator:: Pattawong, Ommidala
Abstract:: Complex organic transformations, such as the addition of pyrrole to ketene using planar chiral organocatalyst (*PPY), the four-component anhydride- Manniach reactions, and the site-selective desymmetrization of meso-1,2-diol, are remarkable synthetic reactions that provide high yield and high selectivity. However, the exact mechanism and origins of stereocontrol for theses synthetic organic...
Resource Type:: Dissertation
Full Text:: as amide/acid itself D/S trap ! ! 8! autocatalysis for this process. The in situ acid can be

Dynamics and Design of Green Fluorescent Protein-Inspired Superphotoacids and Red-Emitting Fluorophores with Transient Absorption and Femtosecond Stimulated Raman Spectroscopy

Creator:: Chen, Cheng
Abstract:: In the past decades, femtosecond stimulated Raman spectroscopy (FSRS) has been gaining tremendous popularity in fundamental sciences stemming from chemistry to biology. It is capable of capturing both equilibrium and non-equilibrium structural information across a broad range of timescales with simultaneously high temporal and spectral resolutions. Femtosecond transient absorption spectroscopy...
Resource Type:: Dissertation
Full Text:: -state FSRS signal generation of R6G on the (a, b) anti-Stokes and (c, d) Stokes sides at different

Drug Discovery from Diverse Bacteria – Bioactivity-guided Isolation of Known and New Metabolites

Creator:: Zhu, Chenxi
Abstract:: Exploring bioactive natural products has contributed largely to clinically approved drugs we have been using over the last 100 years. Especially among the anti-infective drugs, around 70% of currently used antibiotics were discovered or derived from microbial secondary metabolites, among them compounds like vancomycin, chloramphenicol, and erythromycin. Facing the unavoidable...
Resource Type:: Dissertation
Full Text:: from RV Helmer Hanssen; (C) Van Veen grab in open mode from RV Helmer Hanssen; (D) A box core in

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:: , M. Pur. App. Chem. 2003, 75, 337-342. (d) Kobayashi, J.; Tsuda, M. Nat. Prod. Rep. 2004, 21, 77-93

ScholarsArchive@OSU

Synthetic Studies towards Highly Oxygenated Furanyl Diterpenoids

Part I: Synthetic Studies Towards Viridin, Halenaquinone, and Obtusanal. Part II: Analysis, Synthesis, and Characterization of Coronene Derivatives.

Exploring the Synthesis of 4-Deoxygadusol

Total Synthesis of Goniomitine : Development of Aminal and α-Amino Radicals in the Synthesis of Nitrogen-Rich Natural Products

The development of aminal radicals for the synthesis of nitrogen-rich natural products

Topological and Dynamical Properties of Cyclically Presented Groups

Computational Investigation and Prediction of Mechanisms and Stereocontrol in Complex Organic Reactions

Dynamics and Design of Green Fluorescent Protein-Inspired Superphotoacids and Red-Emitting Fluorophores with Transient Absorption and Femtosecond Stimulated Raman Spectroscopy

Drug Discovery from Diverse Bacteria – Bioactivity-guided Isolation of Known and New Metabolites

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

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search