Index Catalog // ScholarsArchive@OSU

Time-of-flight scattering and recoil spectrometry (TOF-SARS) applied to molecular liquid surfaces : a new approach to surface composition and orientation

Creator:: Gannon, Thomas J.
Abstract:: In spite of their importance in many systems, liquid surfaces have been explored at the microscopic level to a much lesser extent than solids. Most surface analysis must take place in vacuum, a major drawback for liquids. The technique of time-of-flight scattering and recoil spectrometry (TOF-SARS) has been applied to...
Resource Type:: Dissertation
Full Text:: detector along a -1.1 m flight path are separated by velocity, and signals are collected as a histogram

Approaches toward synthesis of the mycosporins

Creator:: Cammack, Janice H.
Abstract:: The mycosporins, formerly called P310's are secondary metabolites of fungi closely associated with fungal reproductive processes that require light. The structurally related iminomycosporins are found in marine plants and animals and may also have functions related to light. In this study, approaches toward the asymmetric synthesis of the mycosporins are...
Resource Type:: Dissertation
Full Text:: Davies, Bonnie Hommel and Jeanne Reisner for Janice H. Cammack ACKNOWLEDGEMENTS I would like to

Synthesis of a model of the spiroketal portion of avermectin B

Creator:: Warrier, Ulhas S.
Abstract:: Avermectin Bia is a member of a class of medicinally important natural products known for its potent antiparasitic activity and interesting structural features. In this thesis, synthesis of a model for the spiroketal portion of the avermectins is presented. Oxidation of (S)-2-methylbutanol, followed by a stereoselective chromium mediated reaction with...
Resource Type:: Masters Thesis
Full Text:: , 1987 Typed by Jeanne Reisner for Ulhas Warrier ACKNOWLEDGEMENTS My sincere thanks . . to

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

Synthesis of two subunits of avermectin B1a

Creator:: Dantanarayana, Anura Pathmasiri
Abstract:: Avermectins are a group of potent anthelmintic agents produced by Streptomyces avermitilis. They are active at extremely low dosages and are now in commercial use. In this study, the synthesis of two segments of avermectin B[subscript 1a] are described. The synthesis of the hexahydrobenzofuran subunit (segment A) began with the...
Resource Type:: Dissertation
Full Text:: Graduate chool ( Date thesis is presented August 24, 1987 Typed by Jeanne Reisner for Anura Pathmasiri

Synthesis and oligomerization of y,4-Diamino-2-oxo-1(2H)-pyrimidinepentanoic acid

Creator:: Nelson, Jeffrey Stephen
Abstract:: Described herein is the synthesis of an uncharged stereoregular oligonucleotide analog consisting of cytosine bases linked at specific intervals to a polyamide backbone derived from (L)-glutamic acid. Preparation of this analog entailed borane reduction of (L)- pyroglutamic acid to give optically pure lactam alcohol 9. Tosylation and alkylation with cytosine...
Resource Type:: Masters Thesis
Full Text:: Typed by Jeanne Reisner for Jeffrey S. Nelson To Kelly: Who contributed enormously to my happiness

Approaches to the synthesis of the macrolactone pyrrolizidine alkaloids (-)-integerrimine and (+)-usaramine

Creator:: Jayasinghe, Lalith Ratnasiri
Abstract:: A formal total synthesis of the macrolactone pyrolizidine alkaloid (-)-integerrimine (2), from R-(+)-citronellal (93) is described. Aldehyde 93 was converted to exo methylene derivative 94 which was reduced to allylic alcohol 95. The epoxides 96 and 98, obtained in a ratio of 3:1 respectively by Sharp less epoxidation of 95...
Resource Type:: Dissertation
Full Text:: Redacted for privacy Dean of Graduate SCol Date thesis is presented May 2, 1988 Typed by Jeanne Reisner

[Lambda hyperon]-((R)-cysteinesulfenamido-N,S) bis (ethylenediamine) cobalt(III) complex : Characterization of the complex and kinetics and mechanism of formation and base-catalyzed decomposition

Creator:: Sanguanruang, Oravan
Resource Type:: Dissertation
Full Text:: decomposition of [Co(en)2CySNH2]2+ was determined under pseudo-first-order condi- tions, and is 15.7 ± 0.6 M-1

Enzymatic studies of the prenatal chick, with special reference to the multibple forms of liver soluble NADP-linked isocitric dehydrogenase

Creator:: Cheung, Geoffrey Peter
Abstract:: Levels of activity of glucose-6-phosphate- , 6-phosphogluconate- , and isocitric- dehydrogenase were measured in the soluble and particulate fractions of heart, brain and liver at several ages throughout the development of the chick embryo. Compared to isocitric dehydrogenase, levels of glucosesphosphate- , and 6-phosphogluconate- dehydrogenase are generally low. This suggests...
Resource Type:: Dissertation
Full Text:: V. Loss of activity of stable enzyme on dialysis against 0.05 M Tris-HCl buffer pH 7.4 (Buffer B) 41

Structural and synthetic studies of higher terpenoids : Part I. The absolute configuration of (-)-botryococcene : Part II. Total synthesis of (±)-2-desoxystemodinone

Creator:: Somers, Todd Charles
Resource Type:: Dissertation
Full Text:: Typed by Jeanne Reisner for Todd Charles Somers ACKNOWLEDGEMENT I would like to sincerely thank

ScholarsArchive@OSU

Time-of-flight scattering and recoil spectrometry (TOF-SARS) applied to molecular liquid surfaces : a new approach to surface composition and orientation

Approaches toward synthesis of the mycosporins

Synthesis of a model of the spiroketal portion of avermectin B

Chiral synthesis of monic acid C

Synthesis of two subunits of avermectin B1a

Synthesis and oligomerization of y,4-Diamino-2-oxo-1(2H)-pyrimidinepentanoic acid

Approaches to the synthesis of the macrolactone pyrrolizidine alkaloids (-)-integerrimine and (+)-usaramine

[Lambda hyperon]-((R)-cysteinesulfenamido-N,S) bis (ethylenediamine) cobalt(III) complex : Characterization of the complex and kinetics and mechanism of formation and base-catalyzed decomposition

Enzymatic studies of the prenatal chick, with special reference to the multibple forms of liver soluble NADP-linked isocitric dehydrogenase

Structural and synthetic studies of higher terpenoids : Part I. The absolute configuration of (-)-botryococcene : Part II. Total synthesis of (±)-2-desoxystemodinone

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