Index Catalog // ScholarsArchive@OSU

Using Computational and Statistical Methods as an Aid to Study Environmentally Relevant Organic Molecules

Creator:: Dorn, Shelby E.
Abstract:: In this report, three studies are presented that utilize computations to predict transformations, identities, and properties of environmental organic molecules. Each study shows how computations can lead to models of chemical behavior. The importance of this research is rooted in the need for understanding how human behavior and health intersect...
Resource Type:: Masters Thesis
Full Text:: Molecules. Abstract approved: ______________________________________________________ Paul Ha

Total Synthesis of Isotopologues of Xanthohumol and its Congeners for Biological Studies

Creator:: Plagmann, Layhna S.
Abstract:: Xanthohumol [XN, (E)-6´-methoxy-3´-(3-methylbuten-2-yl)-2´,4´,4´´-trihydroxychalcone], the principal prenylated chalcone from hops, and its 2,3-dihydro- (DXN) and O6-desmethyl-2,3-dihydro- (DDXN) congeners, are of potential utility for the amelioration of metabolic syndrome; however, their complex bioactivity profiles cannot be properly studied and understood without access to appropriately produced synthetic materials. In the first part of...
Resource Type:: Masters Thesis
Full Text:: , Claudia S. Maier, Adrian F. Gombart, Paul R. Blakemore; Journal of Labeled Compounds and

An analysis of essential oils from certain coniferous woods

Creator:: Dimick, Keene Paul
Resource Type:: Masters Thesis
Full Text:: S. under whose d.irection this ork has been completed.. I also wish to thank r. Bert E

Towards the Perfect Marriage Between Theory and Experiments in Drug Discovery and Synthesis : Insights into Structure Determination of Complex Natural Products and Mechanistic Understandings of Lactam Synthesis

Creator:: Snyder, Kevin M.
Abstract:: In this report, three studies are presented that aid in the development of drug discovery and their synthesis. In each, the importance of the marriage between computations and experiments is highlighted. Continued efforts in this vein are essential for future efforts towards improving human health. The first case study investigated...
Resource Type:: Masters Thesis
Full Text:: Synthesis Abstract approved: ______________________________________________________ Paul Ha

Catalytic desymmetrization of D₂d̳-symmertic proprochiral tetrasubstituted biphenyl compounds: a novel approach to the synthesis of axially chiral C₂-symmetric molecules

Creator:: Gunderson, Jeremey Tyson
Abstract:: Many D2d-symmetric 2,2',6,6'-tetrasubstituted biphenyls are readily prepared via net oxidative dimerization of appropriate 1,3-disubstituted benzenes. Conversion of such proprochiral compounds to useful C2-symmetric chiral biphenyls requires formal replacement of two substituents on opposing aryl ring units with alternate groups. This under exploited desymmetrization tactic has been demonstrated for the generation...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Paul R. Blakemore Many D2d-symmetric 2,2',6,6'-tetrasubstituted biphenyls are

Analysis of the mechanism of sulfoxide-lithium exchange and the reactive intermediate in stereospecific reagent-controlled homologation (StReCH)

Creator:: Hoyt, Amanda
Abstract:: The stereospecific reagent-controlled homologation (StReCH) of boronic esters with enantioenriched carbenoid species generated in situ by the addition of organolithium initiators to stereodefined α-chloroalkyl aryl sulfoxides was previously reported. The reaction of an organolithium with an α-chloroalkyl aryl sulfoxide ostensibly generates an α-chloroalkyllithium via sulfoxide-lithium exchange; however, the true nature...
Resource Type:: Masters Thesis
Full Text:: : Paul R. Blakemore The stereospecific reagent-controlled homologation (StReCH) of boronic esters

Broadening the scope of the modified-Julia reaction : a mild and stereoselective method for the synthesis of (Z)-configurated α,β-unsaturated lactones

Creator:: Giesbrecht, Heath Eugene
Abstract:: An intramolecular variant of the modified-Julia olefination was demonstrated by the synthesis of α,β-unsaturated lactones in a mild and (Z)-selective fashion. The lynchpin reagent (benzothiazol-2-sulfonyl) acetic acid was synthesized in a straightforward fashion in 86% overall yield from commercially available 2-mercaptobenzothiazole via conversion to ethyl (benzothiazol-2-ylthio)acetate by base mediated alkylation...
Resource Type:: Masters Thesis
Full Text:: )-Configurated α,β- Unsaturated Lactones Abstract approved: Paul R. Blakemore An intramolecular

Using Computational Methods to Elucidate Reaction Mechanisms for Copper Catalyzed Reactions

Creator:: Caspary, Katherine E.
Abstract:: In this report, two studies are presented that utilize computations to predict and elucidate the reaction mechanisms of two different copper catalyzed reactions. Each study provides insight into the various chemical transformations, as well as the how and why behind regioselectivity and isotopic selectivity. The importance of this research is...
Resource Type:: Masters Thesis
Full Text:: approved: ______________________________________________________ Paul Ha-Yeon Cheong In this

Total synthesis of sparteine alkaloids from a common tetraoxobispidine intermediate

Creator:: Melbardis, John
Abstract:: In previous work (Blakemore et al. Org. Lett. 2005, 7, 4721; Heterocycles 2006, 70, 609), successful elaborations of the lupine alkaloids (±)-α-isosparteine (dl-2) and (±)-β-isosparteine (dl-3) were realized from a common tetraoxobispidine precursor, 3,7-diallyl -2,4,6,8-tetraoxo-3,7-diazabicyclo[3.3.1]nonane (93). Herein, the tetraoxobispidine approach to lupine alkaloids was extended to a total synthesis of...
Resource Type:: Masters Thesis
Full Text:: Tetraoxobispidine Intermediate Abstract approved: Paul R. Blakemore In previous work (Blakemore et al

The stability of vitamin A. in hemolyzed bovine blood

Creator:: Sakoramonkol, Vichien
Resource Type:: Masters Thesis
Full Text:: aclmowledgement is due the late Dr. Joseph s. Butts, Head of Department of Agrioul tural Chemistry and major

ScholarsArchive@OSU

Using Computational and Statistical Methods as an Aid to Study Environmentally Relevant Organic Molecules

Total Synthesis of Isotopologues of Xanthohumol and its Congeners for Biological Studies

An analysis of essential oils from certain coniferous woods

Towards the Perfect Marriage Between Theory and Experiments in Drug Discovery and Synthesis : Insights into Structure Determination of Complex Natural Products and Mechanistic Understandings of Lactam Synthesis

Catalytic desymmetrization of D₂d̳-symmertic proprochiral tetrasubstituted biphenyl compounds: a novel approach to the synthesis of axially chiral C₂-symmetric molecules

Analysis of the mechanism of sulfoxide-lithium exchange and the reactive intermediate in stereospecific reagent-controlled homologation (StReCH)

Broadening the scope of the modified-Julia reaction : a mild and stereoselective method for the synthesis of (Z)-configurated α,β-unsaturated lactones

Using Computational Methods to Elucidate Reaction Mechanisms for Copper Catalyzed Reactions

Total synthesis of sparteine alkaloids from a common tetraoxobispidine intermediate

The stability of vitamin A. in hemolyzed bovine blood

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