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An approach toward the synthesis of euonyminol and cathedulin K- 19

Creator:: Shin, Hyunik
Abstract:: A synthetic approach toward the two major fragments of cathedulin K-19, euonyminol (4) and dimethyl cathate (69), was investigated. Synthesis of dimethyl cathate was accomplished in 3 steps starting from 73. Efforts directed towards the synthesis of euonyminol, a highly oxygenated dihydroagarofuran sesquiterpene, was advanced to a stage in which...
Resource Type:: Dissertation
Full Text:: Cathedulin K-19. Abstract approved by: A synthetic approach toward the two major fragments of cathedulin K

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:: not straightforward. Bazzanin K is a macrocyclic bis(bibenzyls) with diastereotopic protons at its

Divalent carbon intermediates in some bridged polycyclic compounds

Creator:: Hardy, Thomas A.
Resource Type:: Dissertation
Full Text:: . Peter K. Freaman The generation and attempted generation of carbenes in several alicyclic systems is

Fundamental Studies of the Structure-Property Correlations of Na-ion and K-ion Storage in Non-Graphitic Carbon

Creator:: Li, Zhifei
Abstract:: Grid-scale energy storage systems are urgently needed to increase the flexibility and rigidity of the grid for modern society and take full advantage of the renewable green energy resources such as solar energy and wind energy. Na-ion batteries (NIBs) and K-ion batteries (KIBs) have been emerged as one of the...
Resource Type:: Dissertation
Full Text:: . Title: Fundamental Studies of the Structure-Property Correlations of Na-ion and K-ion Storage in Non

Carbene rearrangements : intramolecular interaction of a triple bond with a carbene center

Creator:: Dan̄ino, José C.
Abstract:: The tosylhydrazones of 2-heptanone, 4,4-dimethy1-2- heptanone, 6-heptyn-2-one and 4,4-dimethy1-6-heptyn-2- one were synthesized and decomposed under a variety of reaction conditions: dry lithium and sodium salt pyrolyses, sodium methoxide thermolyses in diglyme and photolyses of the lithium salt in tetrahydrofuran. The saturated analogues 2-heptanone tosylhydrazone and its 4,4-dimethyl isomer afforded the...
Resource Type:: Dissertation
Full Text:: triplet methylene by measuring its absorption spectrum at 4°K. But a different conclusion was arrived at

Mechanistic study of some internal substitution reactions and a substitution at sulfenyl sulfur

Creator:: Hanson, Gary Craig
Resource Type:: Dissertation
Full Text:: given below. Cpd. To(C) dkx105 ,x105 k x05 (sec-1) kffec-1) (sac-11) E-Me 135 9.1 28.1 43.5 a-Naph

Photoresist and ion-exchange chemistry of HafSOx

Creator:: Telecky, Alan J.
Abstract:: The chemistry of hafnium oxide based and materials are described in the context of ion exchange and lithography. HafSOx, represented by the composition HfO₂₋[subscript x](SO₄)x, is described to possess a significant capacity towards ion exchange in acidic and basic solutions, enabling films of HafSOx to be cleanly and readily be...
Resource Type:: Dissertation
Full Text:: : __________________________________________________ Douglas A. Keszler The chemistry of hafnium oxide based and

New, complex group 13 borates : synthesis, structures, and properties

Creator:: Chang, Ki-Seog
Resource Type:: Dissertation
Full Text:: .; Graham, E. K.; Zalkin, A. J. AppL Phys. 1987, 62, 1968. 17. Tu, T.; Keszler, D. A. Mat. Res. Bull., 1995

The chemistry of selected carbene and radical ion intermediates

Creator:: Pugh, James K.
Resource Type:: Dissertation
Full Text:: Radical Ion Intermediates by James K. Pugh A Thesis Submitted to Oregon State University In Partial

Photochemistry of some bromoarenes

Creator:: Jang, Jung-suk
Abstract:: The photodebromination of selected bromoarenes has been studied at 300 nm to determine the the possible mechanistic pathways leading to product. Irradiation of 4-bromobiphenyl (BpBr) at this wavelength leads to the product biphenyl. The quantum yield of intersystem crossing (0.98) and quenching studies with cis-1 ,3-pentadiene suggest that the reaction...
Resource Type:: Dissertation
Full Text:: : Photochemistry of Some Bromoarenes Abstract approved: Redacted for Privacy Peter K. Freeman The

ScholarsArchive@OSU

An approach toward the synthesis of euonyminol and cathedulin K- 19

Total Synthesis of Cephalotaxus Alkaloids and Synthetic Studies toward Bazzanin K

Divalent carbon intermediates in some bridged polycyclic compounds

Fundamental Studies of the Structure-Property Correlations of Na-ion and K-ion Storage in Non-Graphitic Carbon

Carbene rearrangements : intramolecular interaction of a triple bond with a carbene center

Mechanistic study of some internal substitution reactions and a substitution at sulfenyl sulfur

Photoresist and ion-exchange chemistry of HafSOx

New, complex group 13 borates : synthesis, structures, and properties

The chemistry of selected carbene and radical ion intermediates

Photochemistry of some bromoarenes

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