Index Catalog // ScholarsArchive@OSU

A Diels-Alder approach to biaryl synthesis

Creator:: Ashburn, Bradley O.
Abstract:: An expedient approach to the synthesis of a wide range of highly programmable biaryl templates has been accomplished. Utilizing the Diels-Alder [4+2] cycloaddition, a wide range of tri- and tetra-ortho-substituted biaryls have been synthesized in only three to four steps from commercially available materials. We have successfully synthesized entire classes...
Resource Type:: Dissertation
Full Text:: Synthesis Abstract approved: Rich G. Carter An expedient approach to the synthesis

Growth and characterization of wide–gap semiconducting oxide and chalcogenide thin films by pulsed laser deposition

Creator:: Newhouse, Paul F.
Abstract:: The preparation and characterization of thin film oxides and chalcogenides by pulsed laser deposition (PLD) is presented. An overview of fundamental PLD concepts are presented and are followed by a description implementation and development of the PLD systems at OSU. We present the results of thin film growth of high...
Resource Type:: Dissertation
Full Text:: Nielsen, Dara Easley, Levi Kilcher, Mr. Dave Mack Andriy Zakutayev, Annette Richard, and Josh Russell

Expanding the scope of a Diels-Alder approach to biaryl synthesis

Creator:: Schwartz, Johanna Perkins
Abstract:: A Diels-Alder approach to biaryls (DAB) has been applied towards the synthesis of highly substituted, programmable biaryl templates. Tri- and tetra-ortho-substituted biaryls can be produced in just three to four steps from commercially available materials utilizing the Diels-Alder [4+2] cycloaddition. The methods described herein will illustrate the ability of mono...
Resource Type:: Dissertation
Full Text:: : Rich G. Carter A Diels-Alder approach to biaryls (DAB) has been applied towards the synthesis

Studies towards the total syntheses of (+)-phomactins A, D and G

Creator:: Schwartz, Keith D.
Abstract:: Studies towards the total synthesis of (+)-Phomactin A (1), D (6), and G (9), fungal metabolites with unique molecular architecture and pronounced biological activity, are described. These studies resulted in the synthesis of advanced intermediates 354 and 356, which contain all of the carbon atoms of 1, 6 and 9....
Resource Type:: Dissertation
Full Text:: September 23, 2009. Title: Studies Towards the Total Syntheses of (+)-Phomactins A, D and G. Abstract

Copper and iron chalcogenides for efficient solar absorption

Creator:: Platt, Heather A. S.
Abstract:: This dissertation outlines two approaches for improving the efficiency and reducing the cost of photovoltaic energy generation. First, the structures of known binary copper and iron compounds are used to choose the promising compositions Fe₂XS₄ (X = Si, Ge), Cu₃TaQ₄ (Q = Se, Te), and BaCuQ'F (Q' = S, Se,...
Resource Type:: Dissertation
Full Text:: . These thin films are reacted with flowing H2S (g) to convert to the promising absorber FeS2 pyrite, and

Single crystal growth, powder synthesis and characterization of layered chalcogenide semiconductors

Creator:: Richard, Annette Pauline
Abstract:: This thesis presents basic studies, including structural, optical and transport measurements, on novel chalcogenide powders and single crystals. BiCuOSe crystals have been synthesized for the first time. The crystal structure of BiCuOSe has been refined and the optical band gap has been measured to be 0.83eV. Crystal structure refinements of...
Resource Type:: Dissertation
Full Text:: ................................. 58 3.1. ii. g. Microwave Sintering ...................................... 58

The chlorination of uric acid with phosphorus oxychloride in the presence of certain nitrogenous bases

Creator:: Strebin, Robert Samuel
Resource Type:: Masters Thesis
Full Text:: % yield. In 1954 Bendich, Russell, and Fox (2, p. 6074-6075) dis- covered the reason for previous

Tandem intramolecular photocycloaddition-retro-Mannich fragmentation as a route to indole and oxindole

Creator:: Li, Yang
Abstract:: Irradiation of a tryptamine linked through its side-chain nitrogen to an alkylidene malonate residue results in an intramolecular [2 + 2] cycloaddition to the indole 2,3-double bond. The resultant cyclobutane undergoes spontaneous retro-Mannich fission to produce a spiro[indoline-3,3-pyrrolenine] with relative configuration defined by the orientation of substituents in the transient...
Resource Type:: Dissertation
Full Text:: . I would also like to thank my committee members, Dr. Paul Blakemore, Dr. Rich G. Carter, Dr. Kevin

Proteomic approach to the analysis of DNA-binding proteins using mass spectrometry

Creator:: Stapels, Martha Degen
Abstract:: In proteomic studies, separate experimental protocols have been necessary to identify proteins, determine their function, and predict their three-dimensional structure. In this study, a function-based separation of proteins was conceived to fractionate proteins prior to enzymatic digestion. In the initial demonstration of this technique, a DNA substrate was used to...
Resource Type:: Dissertation

Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF7 : a new upconversion host, Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF₇ : a new upconversion host

Creator:: Jieratum, Vorranutch
Abstract:: The materials Fe₂(Si,Ge)(S,Se)₄, Cu₃PS[subscript 4-x]Se[subscript x] (0 ≤ x ≤ 4), and Cu₃PxAs[subscript 1-x]S₄ (0 ≤ x ≤ 1) have been synthesized and studied as new earth-abundant absorbers for single and multijunction photovoltaic cells as well as solar fuel generation. The synthesis, single-crystal growth, and optical and electrical properties of...
Resource Type:: Dissertation
Full Text:: dissertation. I would like to thank David McIntyre and Josh Russell for their help with the fiber-optic

ScholarsArchive@OSU

A Diels-Alder approach to biaryl synthesis

Growth and characterization of wide–gap semiconducting oxide and chalcogenide thin films by pulsed laser deposition

Expanding the scope of a Diels-Alder approach to biaryl synthesis

Studies towards the total syntheses of (+)-phomactins A, D and G

Copper and iron chalcogenides for efficient solar absorption

Single crystal growth, powder synthesis and characterization of layered chalcogenide semiconductors

The chlorination of uric acid with phosphorus oxychloride in the presence of certain nitrogenous bases

Tandem intramolecular photocycloaddition-retro-Mannich fragmentation as a route to indole and oxindole

Proteomic approach to the analysis of DNA-binding proteins using mass spectrometry

Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF7 : a new upconversion host, Iron and copper chalcogenides : photovoltaic absorber candidates and YZrF₇ : a new upconversion host

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