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Total synthesis of (+)-bourgeanic acid and conformational analysis of its dilactone

Creator:: Johnson, Alan T. (Alan Thomas), 1957-
Resource Type:: Dissertation
Full Text:: analysis of its dilactone AN ABSTRACT OF THE THESIS OF Alan T. Johnson for the degree of Doctor of

The synthesis of macrolactones from [omega]-hydroxyacyl xanthates

Creator:: Akella, Annapoorna
Resource Type:: Masters Thesis
Full Text:: Chemistry presented on August 23, 1991 . Title: The Synthesis of Macrolactones From w-Hydroxy Acyl

Synthetic studies on alkaloids : part I, an approach toward the synthesis of (̳+)-koumine : part II, an approach toward the synthesis of (̳+)-morphine

Creator:: Stappenbeck, Frank
Resource Type:: Dissertation
Full Text:: system of 30 have been reported by the Hart, Johnson and Speckamp groups.16 Progress toward a very

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:: Vycor filter 0 \NHPhPh (20%) 95 96 This reaction was further investigated by Johnson,48 who found that

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:: . , 3691 (1971). 12. W. S. Johnson, N. P. Jensen, J. Hooz. J. Amer. Chem. Soc. , 88, 3859 (1966). 13. J

Synthetic approaches to the tricarbonyl subunit of rapamycin

Creator:: LaMunyon, James B.
Abstract:: Rapamycin (5) was isolated in 1975 from the soil bacteria Streptomyces hygroscopicus and its structure was determined from spectroscopic techniques and an x-ray crystallographic analysis. Although it was initially found to exhibit antibiotic activity, it was subsequently shown to possess potent immunosuppressive activity as well. Three approaches to the synthesis...
Resource Type:: Masters Thesis
Full Text:: 105 Dowex 50-W resin, Me0H, 75% 0 OMe 0 'OMe 0 OMe 106 Scheme XIII, continued 29 30 Smith

Total synthesis of indole alkaloids: pt. 1. Asymmetric synthesis of (-)-ibogamine. pt. 2. An approach toward the synthesis of koumine

Creator:: Choi, Younggi
Abstract:: PART I. The preparation of (-)-ibogamine (1) in fourteen steps from benzoquinone and in 10% overall yield is a powerful illustration of the value of the asymmetric Diels-Alder reaction as a starting point in a multistep synthesis. All four cycloadducts, 70, 77, 84 and 96, obtained with the (S)-BINOL-TiCl₂ complex...
Resource Type:: Dissertation
Full Text:: Kuntiyong, Chang-Sun Lee, Nadine Lee, Tae-Hee Lee, Christopher M. Lincoln, Barton W. Phillips, Laura

Synthetic studies on marine natural products : I. Stereoselective synthesis of E,Z-1,3-Dienes by tandem nucleophilic addition to a dienylphosphonium salt followed by Wittig reaction. II. Synthesis of cyclopropyl oxylipins by a cation mediated carbocyclization

Creator:: Jensen, Mark S.
Resource Type:: Dissertation

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

Creator:: Skeean, Richard William
Resource Type:: Dissertation
Full Text:: for Richard W. Skeean iv AKNOWLEDGEMENTS I wish to thank Dr. James D. White for his support and

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:: COOMe 2 76 1 NaH 0 coci0 27 with a Hanovia 450-W lamp, through a Pyrex filter at 5-8° C in a dry

ScholarsArchive@OSU

Total synthesis of (+)-bourgeanic acid and conformational analysis of its dilactone

The synthesis of macrolactones from [omega]-hydroxyacyl xanthates

Synthetic studies on alkaloids : part I, an approach toward the synthesis of (̳+)-koumine : part II, an approach toward the synthesis of (̳+)-morphine

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

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

Synthetic approaches to the tricarbonyl subunit of rapamycin

Total synthesis of indole alkaloids: pt. 1. Asymmetric synthesis of (-)-ibogamine. pt. 2. An approach toward the synthesis of koumine

Synthetic studies on marine natural products : I. Stereoselective synthesis of E,Z-1,3-Dienes by tandem nucleophilic addition to a dienylphosphonium salt followed by Wittig reaction. II. Synthesis of cyclopropyl oxylipins by a cation mediated carbocyclization

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

Approaches to the synthesis of penicillin

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