Index Catalog // ScholarsArchive@OSU

Diffusion of n-alkanes in polydimethylsilicones

Creator:: Millen, William George
Abstract:: Diffusion of short chain n-alkanes was found to be faster in the polydimethylsilicone elastomer SE-30 than in the polydimethylsilicone oil SF-96-2000. The opposite was true for the longer chain n-alkanes suggesting that choice of stationary phase for gas chromatography would depend on the chain length of sample components. The dependence...
Resource Type:: Masters Thesis
Full Text:: Diffusion of n-alkanes in polydimethylsilicones AN

Preparation and characterization of n-octadecylcycloazadiboron

Creator:: Heusser, Roger Karvel
Abstract:: A preparative method for a new compound n-octadecylcycloazadi-boron (CAB), in high yield has been developed. CAB was isolated as an intermediate in the octadecylamine-catalyzed hydrolysis of pentaborane. The most probable structure of CAB can be regarded as a derivative of the three membered ring cycloazadiboron with a n-octadecyl group substituted...
Resource Type:: Masters Thesis
Full Text:: Preparation and Characterization of N

Attempts to prepare cis-a, 2-dicyclohexenylethylene

Creator:: Kaesornsomboon, Somkid
Resource Type:: Masters Thesis
Full Text:: -dicyclohexenylethylene. Abstract approved: Redacted for privacy Dr. Elliot N. Marvell Inhoffen and Quinkert (13

Thermal valence isomerization of trienes

Creator:: Polston, Norman Lee
Resource Type:: Masters Thesis
Full Text:: discussed. (CH2)n \ (CH2 ) (CH 2)n XVIII XIX XX Cyclooctatetraene (XXI), when treated with two

Identification of a product of the Friedel-Crafts cyclization of β -(3- cyclohexenyl) propionyl chloride

Creator:: McEwen, Terry Earl
Abstract:: An improved procedure for the preparation of β-(3-cyclohexenyl) propionic acid from 4-vinylcyclohexene was developed. The Friedel-Crafts cyclization of β-(3-(3-cyclohexenyl) propionyl chloride with aluminum chloride was shown to give one bicyclic chlorine containing ketone in 41% yield. This ketone was identified by a combination of spectral and chemical methods as a...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: Redacted for privacy Elliot N. Marvell An improved procedure for the preparation of p

Polybenzimidazole synthesis from compounds with sulfonate ester linkages

Creator:: Seckin, Turgay
Abstract:: This investigation of polybenzimidazole synthesis involved the two-stage low temperature solution polymerization of dialdehydes, One-step polycondensation of dialdehydes, two-stage melt polycondensation of diesters, and one-step solution polycondensation of diesters with 3,3'-diaminobenzidine. Dialdehyde or diester monomers were prepared which contained aromatic units which were hooked together with sulfonate linkages. Polymerization of...
Resource Type:: Masters Thesis
Full Text:: , obtained by dissolving the polymer in dipolar approtic solvents such as N,N-dimethylacetamide or N,N

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:: -propanetetracarboxamide (107), followed by N,N´-diallylation of the resulting 2,4,6,8-tetraoxo-3,7- diazabicyclo[3.3.1

Semi-volatile fluorinated organic compounds in Asian and Pacific Northwestern U.S. air masses

Creator:: Piekarz, Arkadiusz M.
Abstract:: Current studies suggest that perfluorinated organic compounds, such as fluorotelomer alcohols (FtOHs) in the troposphere, may be precursors of perfluorocarboxylic acids and perfluorosulfonates in remote regions. Fluorinated organic compounds were investigated in archived extracts collected from remote locations in Okinawa, Japan (HSO) and Mount Bachelor, Oregon (MBO) during the springs...
Resource Type:: Masters Thesis
Full Text:: perfluorooctane sulfonamide N-EtFOSA F3C C F2 C F2 CF 2 CF 2 CF 2 CF 2 CF 2 S NH O O CH 2C H 3 ABCR

Synthetic studies on indolic enamide natural products: 1. Total syntheses of coscinamide A, concinamide B and igzamide: 2. Synthetic studies towards the synthesis of halocyamine B

Creator:: Ma, Yuelong
Abstract:: The 3-substituded indolic enamide moiety has been found in many marine compounds over the past 20 years. These indolic enamides exhibit various biological properties such as cytotoxic, anthelmintic, antimicrobial and HW-inhibitory activities. Among these indolic enamides, some are (E)-enamides, like coscinamide A and coscinamide B, others are (Z)-configuration in their...
Resource Type:: Masters Thesis
Full Text:: for the dehydration reaction. (.E)-Indolic enamides were the main products with N, N

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:: different organolithium initiators (n-BuLi, t-BuLi, and PhLi). Observation of kinetic resolution in such

ScholarsArchive@OSU

Diffusion of n-alkanes in polydimethylsilicones

Preparation and characterization of n-octadecylcycloazadiboron

Attempts to prepare cis-a, 2-dicyclohexenylethylene

Thermal valence isomerization of trienes

Identification of a product of the Friedel-Crafts cyclization of β -(3- cyclohexenyl) propionyl chloride

Polybenzimidazole synthesis from compounds with sulfonate ester linkages

Total synthesis of sparteine alkaloids from a common tetraoxobispidine intermediate

Semi-volatile fluorinated organic compounds in Asian and Pacific Northwestern U.S. air masses

Synthetic studies on indolic enamide natural products: 1. Total syntheses of coscinamide A, concinamide B and igzamide: 2. Synthetic studies towards the synthesis of halocyamine B

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

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