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:: AN ABSTRACT OF THE DISSERTATION OF Adam L. Barsamian for the degree of Doctor of Philosophy in

Investigation of the structural influence on the properties of functional inorganic oxides

Creator:: Laurita-Plankis, Geneva
Abstract:: While properties are extremely important from an application point of view, it is crucial to have a detailed understanding of the underlying structural influence. Once a concrete correlation between the structure and the observed property is established, rational design of novel materials with optimized properties can be realized. These optimized...
Resource Type:: Dissertation

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:: University. I would like to thank the Blakemore research group members, Chris Emerson, Chao Wang, Adam

Synthetic studies toward a total synthesis of paeoniflorigenin

Creator:: Hong, Zhenqiu
Abstract:: A new approach towards a total synthesis of paeoniflorigenin is discussed. The approach involves the application of regio- and stereoselective [2+2] photocycloaddition for the preparation of a key intermediate, cyclobutanone 86, and model studies on diiodosamarium (Sm12) mediated pinacol coupling of a diketone. Intermolecular [2+2] photocycloaddition of a,13unsaturated lactam 33...
Resource Type:: Masters Thesis
Full Text:: mechanism for the singlet oxygen oxidation of 5-TMS-furan has been postulated by Adam et al25 to involve

Giant modulation of the electronic band gap of carbon nanotubes by dielectric screening

Creator:: Aspitarte, Lee, McCulley, Daniel R., Bertoni, Andrea, Island, Joshua O., Ostermann, Marvin, Rontani, Massimo, Steele, Gary A., and Minot, Ethan D.
Abstract:: Ion pairs and solubility related to ion-pairing in water influence many processes in nature and in synthesis including efficient drug delivery, contaminant transport in the environment, and self-assembly of materials in water. Ion pairs are difficult to observe spectroscopically because they generally do not persist unless extreme solution conditions are...
Resource Type:: Article
Full Text:: noise current preamplifier (SRS 570). The conductance of the CNT is G = I/Vsd. Figures 2c and 2d

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:: . Tak & Janet Suyama Dr. Charles Wells Adam Barsamian Yang Li Dr. Bobby Chow Dr. Selena D. Milicevic

Synthesis and catalytic applications of derivatives of 7,7'-dihydroxy-8,8'-biquinolyl (azaBINOL)

Creator:: Wang, Chao
Abstract:: The synthesis of axially chiral polyfunctional derivatives of 8,8'-biquinolyl was explored and the catalytic action of appropriate derivative types investigated in three separate processes: (1) the silylcyanation of carbonyl groups and imines, (2) alkylation of a glycine Schiff-base via phase transfer-catalysis, and (3) direct amide bond formation from simple amines...
Resource Type:: Dissertation
Full Text:: , Mark, Adam, Xun, Zhenhua, Embarek, Somdev, Amanda and Arsalan. It has been great working with all of

The synthesis and cyclization of 2,4-diaminobutyric acid

Creator:: Li, Chun-wing
Abstract:: The objectives of this study were to isolate 2, 4-diaminobutyric acid and to attempt cyclizing the acid and its disulfonamide derivative. The original synthetic method by Adamson was followed but a modified isolation procedure for the acid was employed. Following the synthesis, the acidic solution was passed through Dowex-3 ion-exchange...
Resource Type:: Masters Thesis
Full Text:: 2 0 (IV) H+ 0 II CH C 2 2 1 NH 0 RO 2C- CH- 2 2 CH- CH C ROH 2 2 CH- HN iNH N1 HC1 HNC

Bridging the Gap Between Equilibrium Properties and Ultrafast Dynamics with Time-Resolved Spectroscopy of Functional Systems

Creator:: Krueger, Taylor D.
Abstract:: Ultrafast spectroscopy has recently gained momentum as a powerful, noninvasive characterization toolset capable of studying a diverse array of samples with applications in chemistry, physics, biology, engineering, and more. Two popular ultrafast spectroscopic techniques include femtosecond transient absorption (fs-TA) and femtosecond stimulated Raman spectroscopy (FSRS). The latter of these techniques...
Resource Type:: Dissertation

Part I. The identity of the chain propagating radical(s) in photoinitiated benzylic bromination by bromotrichloromethane ; Part II. Chlorine atom abstraction from α- and β-chloroepoxides by the triphenyltin radical

Creator:: Krosley, Kevin W.
Resource Type:: Dissertation
Full Text:: S C13CC(0)Cl (39) 0°C + Cl3CCO2 (42) CO 2C + 030 (31) N S - CC1 + C13CCO2 (43) Scheme 11

ScholarsArchive@OSU

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

Investigation of the structural influence on the properties of functional inorganic oxides

Development of Methods for Stereoselective Carbon-Carbon Bond Formation

Synthetic studies toward a total synthesis of paeoniflorigenin

Giant modulation of the electronic band gap of carbon nanotubes by dielectric screening

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

Synthesis and catalytic applications of derivatives of 7,7'-dihydroxy-8,8'-biquinolyl (azaBINOL)

The synthesis and cyclization of 2,4-diaminobutyric acid

Bridging the Gap Between Equilibrium Properties and Ultrafast Dynamics with Time-Resolved Spectroscopy of Functional Systems

Part I. The identity of the chain propagating radical(s) in photoinitiated benzylic bromination by bromotrichloromethane ; Part II. Chlorine atom abstraction from α- and β-chloroepoxides by the triphenyltin radical

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