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Total Synthesis of Tryptamine Alkaloids from the Arundo and Leuconotis Genera

Creator:: Ferreira, Andrew
Abstract:: The first part of this manuscript is about the total synthesis of the Arundo donax bis(indole) natural products. The A. donax alkaloids were prepared using the first example of an ynindole Diels–Alder reaction. Each were then separated, isolated, and determined to have stable enantiomeric conformations at room temperature (Chen, J.;...
Resource Type:: Dissertation
Full Text:: Christopher M. Beaudry The first part of this manuscript is about the total synthesis of the Arundo

Conformationally chiral diphenylethers and the enantioselective Ullmann etherification

Creator:: Salih, M. Quamar
Abstract:: Since the discovery of molecular chirality in 1848, this notion has had a substantial impact on medicine, biology, and chemistry. Extensive effort has been directed towards the construction of chiral molecules that contain sp³ hybridized stereogenic centers. In contrast, less effort has been dedicated to molecules that are chiral by...
Resource Type:: Dissertation
Full Text:: ! Etherification! ! ! ! Abstract!approved:! ______________________________________________________! Christopher

Applications of redox indicators for evaluating redox conditions in environmental samples

Creator:: Jones, Brian Dion
Resource Type:: Dissertation
Full Text:: Conditions in Environmental Samples AN ABSTRACT OF THE THESIS OF Brian D. Jones for the degree of Doctor

Study of the acid-base properties of humic acids

Creator:: Jones, John D., 1964-
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF John D. Jones for the degree of

Total Synthesis of Cephalotaxus Alkaloids and Synthetic Studies toward Bazzanin K

Creator:: Ju, Xuan
Abstract:: Dearomatization reactions exist broadly in biosynthesis and chemical synthesis. The highly functionalized atoms of arenes can be masked by it aromaticity, and upon dearomatization, those reactive atoms can be readily applied to bond formation and further manipulation. The total synthesis of (–)-cephalotaxine and (–)- homoharringtonine is described via an oxidative...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Christopher M. Beaudry Dearomatization reactions exist broadly in biosynthesis and chemical

Local scale spatial and temporal variation in wet deposition of persistent organic pollutants by snow

Creator:: Walsh, Christopher D.
Abstract:: The objective of this research was to assess the variability of POP deposition by snow on a 10 km spatial scale by measuring the POP concentrations in fresh-fallen snow from remote alpine sites. Samples of pre-metamorphic snow were concurrently collected from three remote alpine sites, of matched altitude and exposure,...
Resource Type:: Dissertation
Full Text:: Christopher D. Walsh for the degree of Doctor of Philosophy in Chemistry presented on May 23, 2014

Stereoselective synthesis & application of enantioenriched main group α-haloalkyl organometal reagents

Creator:: Emerson, Christopher R.
Abstract:: Sulfoxide-ligand exchange (SLE) and asymmetric halogen-metal exchange (AHME) processes were separately examined for the enantioselective synthesis of functionalized alpha-haloalkylmetal (carbenoid) reagents. Carbenoids derived from SLE were used to effect stereospecific reagent-controlled homologation (StReCH) of boronic esters and those generated via AHME were engaged in Darzens-type chemistry with aldehydes. Abstract for...
Resource Type:: Dissertation
Full Text:: ABSTRACT OF THE DISSERTATION OF Christopher R Emerson for the degree of Doctor of Philosophy in

A new glow discharge detector for carbohydrates in aqueous chromatography

Creator:: Herring, Christopher Jackson
Abstract:: An atmospheric pressure argon glow discharge is shown to detect trace levels of carbohydrates in aqueous flowing systems, using either of two glow discharge solution interface configurations. The first configuration consists of an oscillating glow discharge sustained between a flowing aqueous cathode and platinum anode. Picomole and micromolar mass and...
Resource Type:: Dissertation
Full Text:: chromatography AN ABSTRACT OF THE THESIS OF Christopher Jackson Herring for the degree of Doctor of

Studies on the synthesis and characterization of polymer-containing nanocomposite materials

Creator:: Oriakhi, Christopher O., 1960-
Resource Type:: Dissertation
Full Text:: Christopher 0. Oriakhi A THESIS submitted to Oregon State University in partial fulfillment of the

Stereocontrolled Synthesis of Allenes by Eliminative Cross-Coupling of Carbenoids

Creator:: Cao, Yang
Abstract:: The bimolecular reaction of two carbenoid species resulting in the formation of a carbon-carbon double bond (pi-system), referred to herein as carbenoid eliminative cross-coupling (CEXC), involves a series of three fundamental steps: (i) ate-complex formation (transmetalation), (ii) 1,2-metalate rearrangement, and (iii) beta-elimination. All three steps are stereospecific and so the...
Resource Type:: Dissertation
Full Text:: to thank my committee members Dr. Kevin Gable, Dr. Christopher Beaudry, Dr. Chong Fang, and GCR Dr

ScholarsArchive@OSU

Total Synthesis of Tryptamine Alkaloids from the Arundo and Leuconotis Genera

Conformationally chiral diphenylethers and the enantioselective Ullmann etherification

Applications of redox indicators for evaluating redox conditions in environmental samples

Study of the acid-base properties of humic acids

Total Synthesis of Cephalotaxus Alkaloids and Synthetic Studies toward Bazzanin K

Local scale spatial and temporal variation in wet deposition of persistent organic pollutants by snow

Stereoselective synthesis & application of enantioenriched main group α-haloalkyl organometal reagents

A new glow discharge detector for carbohydrates in aqueous chromatography

Studies on the synthesis and characterization of polymer-containing nanocomposite materials

Stereocontrolled Synthesis of Allenes by Eliminative Cross-Coupling of Carbenoids

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