Index Catalog // ScholarsArchive@OSU

Investigation of Chain Extension Approaches for the Stereoselective Reagent-Controlled Synthesis of alpha-Heteroatom Substituted Alkyl Boronic Esters

Creator:: Barsamian, Adam L.
Abstract:: Two distinct strategies were explored for the enantioselective synthesis of α-heteroatom substituted alkyl boronic esters by stereoselective reagent-controlled homologation using transient chiral carbenoid reagents CHYMX (Y = heteroatom, X = nucleofuge, M = electrofuge). In the first case, a stereospecific reagent-controlled homologation (sStReCH) approach to α-alkoxyalkylboronates using α-metalated S,O- and...
Resource Type:: Dissertation
Full Text:: Investigation of Chain Extension Approaches for the

Water and methanol adsorption on a series of organic complexes of montmorillonite

Creator:: Carter, Loren Sheldon
Abstract:: Water and methanol adsorption isotherms at 25° and 37° C. were determined on a series of organo-bentonite clays. The clays differed in the length of the carbon chain attached to the amine adsorbed in the cation exchange position. The amines used had carbon chains of 4, 6, 8, 10, 12,...
Resource Type:: Masters Thesis
Full Text:: about one millimeter extension per milligram of load. The isotherms were typical type II isotherms and

Development of Methods for Stereoselective Carbon-Carbon Bond Formation

Creator:: Wu, Zhenhua
Abstract:: Three distinct methods to achieve the stereoselective synthesis of carbon-carbon bonds were investigated, encompassing: (i) the formation of axially chiral biaryl molecules by enantioselective Suzuki cross-coupling, (ii) the synthesis of α-phenylalkylboronic esters by enantioselective chain extension, and (iii) the stereospecific synthesis of alkenes by eliminative cross-coupling of enantioenriched sp³-hybridized carbenoids....
Resource Type:: Dissertation
Full Text:: enantioselective chain extension, and (iii) the stereospecific synthesis of alkenes by eliminative cross-coupling

The normal vibrational analysis of polyacetaldehyde

Creator:: Lee, Dorothy
Abstract:: A method of calculating the normal vibrations of polymer molecules is presented in detail. The method is based on that used by Schachtschneider and Snyder in their analysis of polypropylene but has not heretofore been published. The factoring of the infinite matrix and reduction to the coordinates of the unit...
Resource Type:: Dissertation
Full Text:: rnolecules to rnake the extension to polyrner rnolecules by this rnethod. The geometry of polyrner chains

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

Creator:: Shaw, Subrata
Abstract:: This thesis describes the development of a new enantioselective synthetic method employing chiral cis-2,5-diaminobicyclo[2.2.2]octane-based organometallic catalysts. The significance of this new method to organic synthesis is illustrated with preparation of enantioenriched products that are transformed to important pharmaceutical agents. Chapter 1 provides a brief historical overview of asymmetric catalysis, especially...
Resource Type:: Dissertation
Full Text:: enantiomeric excess. Extension of this reaction to vinylic halides using the same catalyst is probed but

Dynamics and Design of Green Fluorescent Protein-Inspired Superphotoacids and Red-Emitting Fluorophores with Transient Absorption and Femtosecond Stimulated Raman Spectroscopy

Creator:: Chen, Cheng
Abstract:: In the past decades, femtosecond stimulated Raman spectroscopy (FSRS) has been gaining tremendous popularity in fundamental sciences stemming from chemistry to biology. It is capable of capturing both equilibrium and non-equilibrium structural information across a broad range of timescales with simultaneously high temporal and spectral resolutions. Femtosecond transient absorption spectroscopy...
Resource Type:: Dissertation
Full Text:: require large π-conjugation extension and hence provides space for further chemical engineering for

Some features influencing the valence isomerism of cis-dienones to α-pyrans

Creator:: Gosink, Thomas A. (Thomas Anthony)
Resource Type:: Dissertation
Full Text:: thermal isomerizations (67, 87). A This is a logical extension of earlier studies of the Claisen o

Preparation of hydroxy analogues of several amino acids

Creator:: Abrahams, Thomas Lee
Resource Type:: Masters Thesis
Full Text:: Osborne and Harris (17, pp.,332-353) with his own meth od for the determination of amino nitrogen. In

The cystine and methionine contents of alfalfa as influenced by sulfur fertilization

Creator:: Schubert, John Rockwell
Resource Type:: Masters Thesis
Full Text:: Sullivan and co-workers (110, pp.423-428) (42, pp.353-355) (68, p . 874) ( 41, p .638) . The hydrolysis

The dethionation of certain 2-substituted purines and pyrimidines

Creator:: Maruyama, Shigeki
Resource Type:: Masters Thesis
Full Text:: 2-hydroxy pyrimIdinc. The extension of these reactions to the 2-thiopurinas has received little

ScholarsArchive@OSU

Investigation of Chain Extension Approaches for the Stereoselective Reagent-Controlled Synthesis of alpha-Heteroatom Substituted Alkyl Boronic Esters

Water and methanol adsorption on a series of organic complexes of montmorillonite

Development of Methods for Stereoselective Carbon-Carbon Bond Formation

The normal vibrational analysis of polyacetaldehyde

Cis-2,5-diaminobicyclo[2.2.2]octane : a novel C₂-symmetric scaffold for asymmetric catalysis

Dynamics and Design of Green Fluorescent Protein-Inspired Superphotoacids and Red-Emitting Fluorophores with Transient Absorption and Femtosecond Stimulated Raman Spectroscopy

Some features influencing the valence isomerism of cis-dienones to α-pyrans

Preparation of hydroxy analogues of several amino acids

The cystine and methionine contents of alfalfa as influenced by sulfur fertilization

The dethionation of certain 2-substituted purines and pyrimidines

Limit your search

Academic Affiliation

Advisor

Commencement Year

Committee Member

Conference Name

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