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Alkylation studies on Hagemann's ester: an approach to the synthesis of the trisporic acids

Creator:: Sung, Wing Lam
Abstract:: Sequential alkylation of Hagemann's ester with methyl and methallyl halides has been studied. Treatment of Hagemann's ester with methyl iodide and sodium ethoxide gave a mixture of 21 and 25 in a ratio of 4:1. Alkylation of 21 with methallyl chloride and potassium t-butoxide afforded a mixture of 37 and...
Resource Type:: Masters Thesis
Full Text:: Privacy Chairman of Department of Chemistry Redacted for Privacy Dean of Graduate School Date thesis

Cyclization of olefinic β-ketoesters. An approach to the synthesis of aplysistatin

Creator:: Skeean, Richard William
Resource Type:: Dissertation
Full Text:: for privacy Dean of Graduate School Date thesis is presented: July v, 1979 Typed by Antonia A. Clark

Synthetic studies on marine natural products : Part 1. Synthesis of the sesquiterpenoid dihydropallescensin D via manganese(III)- mediated carbocyclization. Part 2. Approaches toward the synthesis of prianosin and discorhabdin alkaloids

Creator:: Yager, Kraig M.
Resource Type:: Dissertation
Full Text:: Chemistry in charge of major Chair of Department of Chemistry Dean of Graduate ool Date thesis is

Approaches to the synthesis of polyketides. Vermiculine

Creator:: Kirkemo, Curtis Lee
Abstract:: An approach to the generation of polyketides was investigated, which involved ozonolysis of 6, 7 cyclopenteno -1> 4, 5, 8 -tetrahydromethoxy- 3-methylnaphthalene (26), to produce what is believed to be polyketide 27. Compound 26 was formed by the following sequence: Die ls -Alder addition of 1, 2 -dim.ethylenecyclopentane and 2...
Resource Type:: Dissertation
Full Text:: of major Redacted for privacy Chairperson of Department of Chemistry Redacted for privacy Dean of

Studies toward the total synthesis of (+)-providencin

Creator:: Jana, Somnath
Abstract:: Studies toward the total synthesis of (+)-providencin (1), a highly oxygenated cembranoid dipterpene with a unique bicyclo[12.2.0]hexadecane skeleton and pronounced biological activity, are described. These studies resulted in the synthesis of advanced intermediates 320 and 332 which contain all of the carbon atoms of 1. In a first generation approach...
Resource Type:: Dissertation
Full Text:: , representing Chemistry Chair of the Department of Chemistry Dean of the Graduate School I

Intramolecular diels-alder cycloadditions of citraconic and mesaconic esters ; Studies on the synthesis of the northwest and southeast segments of boromycin

Creator:: Sheldon, Bernard Gale
Resource Type:: Dissertation
Full Text:: Dean of Gr duate School Date thesis is presented October 17, 1980 Typed by Helena Smith for Bernard G

Chiral synthesis of monic acid C

Creator:: Theramongkol, Parinya
Abstract:: Bromoalkoxylation of dihydropyran with bromine and 1-borneol, followed by dehydrobromination and epoxidation, afforded trans-2-1- bornyloxy-3,4-epoxytetrahydropyran as a major product. This was treated with sodium phenylselenide to give a 1:1 mixture of (2R,3R,4R)- 2-1-bornyloxy-3-hydroxy-4-phenylselenotetrahydropyran and its (2S,3S, 4S) diastereomer. Elimination of the selenoxide, derived from oxidation of the former with hydrogen...
Resource Type:: Dissertation
Full Text:: Redacted for Privacy Dean of Gradu School d Date thesis is presented prember 12. 1985 Typed by Jeanne

Approaches to the synthesis of penicillin

Creator:: Furuta, Takuya
Abstract:: Several approaches to the synthesis of penicillin from 2-iminothioazolidine 50, from 2-thiothiazolidine 66 and by photocyclization of 77 and 78 were investigated. 2-Iminothiazolidine 50 was prepared from dibromoester 45 by the action of benzylamine followed by treatment of aziridine 46 with potassium or ammonium thiocyanate. Attempted introduction of a two-carbon...
Resource Type:: Dissertation
Full Text:: charge of major Redacted for Privacy Chairman of Department of Chemistry Redacted for Privacy Dean of

Part I : synthesis of azetidin-2-ones from pyrazolidin-3-ones ; Part II : synthesis of a subunit of the immunosuppressant FK-506

Creator:: Toske, Steven Gerald
Resource Type:: Dissertation
Full Text:: APPROVED: Profe sgir of Chemistry in charge of major Chairman of Department of Chemistry Dean of

Studies toward the total synthesis of phorboxazole A

Creator:: Kuntiyong, Punlop
Abstract:: Studies toward the total synthesis of a highly potent cytotoxic marine natural product, phorboxazole A, were conducted and resulted in a route to an advanced intermediate, C4-C32, for this purpose. A key feature of our approach is the stereoselective synthesis of two cis-2,6-disubstituted tetrahydropyrans present in the macrolide portion of...
Resource Type:: Dissertation
Full Text:: Dean of the Graduate School I understand that my dissertation will become part of the permanent

ScholarsArchive@OSU

Alkylation studies on Hagemann's ester: an approach to the synthesis of the trisporic acids

Cyclization of olefinic β-ketoesters. An approach to the synthesis of aplysistatin

Synthetic studies on marine natural products : Part 1. Synthesis of the sesquiterpenoid dihydropallescensin D via manganese(III)- mediated carbocyclization. Part 2. Approaches toward the synthesis of prianosin and discorhabdin alkaloids

Approaches to the synthesis of polyketides. Vermiculine

Studies toward the total synthesis of (+)-providencin

Intramolecular diels-alder cycloadditions of citraconic and mesaconic esters ; Studies on the synthesis of the northwest and southeast segments of boromycin

Chiral synthesis of monic acid C

Approaches to the synthesis of penicillin

Part I : synthesis of azetidin-2-ones from pyrazolidin-3-ones ; Part II : synthesis of a subunit of the immunosuppressant FK-506

Studies toward the total synthesis of phorboxazole A

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