Index Catalog // ScholarsArchive@OSU

Total synthesis of phorboxazole A

Creator:: Lee, Tae Hee
Abstract:: The total synthesis of a highly potent cytotoxic marine natural product, phorboxazole A, is described. Both a palladium(II)-mediated and a palladium(II)-catalyzed intramolecular alkoxycarbonylation were used as key steps for the preparation of the two cis-2,6-disubstituted tetrahydropyran rings (C22-C26 and C11-C15) of phorboxazole A. The synthesis used a convergent approach involving...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Tae Hee Lee for the degree of Doctor of Philosophy in Chemistry

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:: Blakemore, Professor Sandra Loesgen, Professor Deidre Johns, Professor Yun-Shik Lee and Professor David Ji

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:: also like to thank Dr. Yun-Shik Lee, Dr. Paul Blakemore, and Dr. Weihong Qiu for their

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:: / retro Diels-Alder cyclization, in addition to a Lewis acid-mediated ring cyclization to produce the

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:: . J. Am. Chem. Soc. 2010, 132, 9594-9595. 14. Lee, A. S.; Liau, B. B.; Shair, M. D. J. Am. Chem. Soc

Part I: Synthetic studies toward the southern portion of Azaspiracid-1; Part II: Total synthesis of amphidinolide B₁ and the proposed structure of amphidinolide B₂

Creator:: Lu, Liang
Abstract:: The structural architecture present in marine toxin azaspiracid - 20 stereocenters, 9 rings, 3 separated spirocenters - has attracted considerable synthetic attention. Our efforts toward the synthesis of azaspiracid have led to the completion of both C₁-C₂₆ northern and C₂₇-C₄₀ southern halves. Herein, the synthesis of southern FGHI ring system...
Resource Type:: Dissertation
Full Text:: 4.3.2 The Lee Group………………………................... 67 4.3.3 The Pattenden Group

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

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:: Lewis-Acid Catalyzed Amidine Formation ........................................................ 258

Studies toward the synthesis of halichlorine and pinnaic acid

Creator:: Korf, Eric A.
Abstract:: Three approaches toward the core of halichlorine and pinnaic acid are described. The first approach entails a racemic transannular nitrone-olefin [3+2] cycloaddition from nitrone 238. Construction of the nitrone 238 began with aldehyde 241. Another key feature in this route involved a ring-closing metathesis for the formation of a 14-membered...
Resource Type:: Dissertation
Full Text:: ) (Scheme 3).15 The lactam reacted with allyltrimethylsilane in the presence of a Lewis acid; subsequent

Studies towards the total synthesis of (-)-kendomycin

Creator:: Smits, Helmars
Abstract:: Studies towards the total synthesis of (−)-kendomycin (1), a bacterial metabolite with a unique molecular architecture and pronounced biological activity, are described. These studies resulted in the synthesis of advanced intermediate 208, containing all of the carbon atoms of 1. A Dötz annulation between alkyne 122 and novel chromium carbenoid...
Resource Type:: Dissertation
Full Text:: The first total synthesis of 1 was reported by Lee and co-workers in late 2004.4 Their synthetic

ScholarsArchive@OSU

Total synthesis of phorboxazole A

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

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

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

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

Part I: Synthetic studies toward the southern portion of Azaspiracid-1; Part II: Total synthesis of amphidinolide B₁ and the proposed structure of amphidinolide B₂

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

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

Studies toward the synthesis of halichlorine and pinnaic acid

Studies towards the total synthesis of (-)-kendomycin

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Creator

Date

Decade

Degree Field

Degree Level

Degree Name

File Format

Language

License

Non-Academic Affiliation

Peer Reviewed

Resource Type

Rights Statement

Subject

Search Constraints

Search Results

Limit your search