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Filtering by: Committee Member Ostroverkhova, Oksana Remove constraint Committee Member: Ostroverkhova, Oksana Degree Field Chemistry Remove constraint Degree Field: Chemistry Degree Name Master of Science (M.S.) Remove constraint Degree Name: Master of Science (M.S.)

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Total Synthesis of Isotopologues of Xanthohumol and its Congeners for Biological Studies

Creator:

Plagmann, Layhna S.

Abstract:

Xanthohumol [XN, (E)-6´-methoxy-3´-(3-methylbuten-2-yl)-2´,4´,4´´-trihydroxychalcone], the principal prenylated chalcone from hops, and its 2,3-dihydro- (DXN) and O6-desmethyl-2,3-dihydro- (DDXN) congeners, are of potential utility for the amelioration of metabolic syndrome; however, their complex bioactivity profiles cannot be properly studied and understood without access to appropriately produced synthetic materials. In the first part of...

Resource Type:

Masters Thesis
Theoretical study of beryllium borohydride Be(BH₄)₂

Creator:

Alghamdi, Maha D.

Abstract:

Ab initio calculations using the B3LYP and CCSD(T) methods were employed in this work to explore the most stable structure of the intriguing compound Be(BH₄)₂, for which as many as seven different structures have been proposed in the literature. Use of the B3LYP density functional method with several large basis...

Resource Type:

Masters Thesis
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
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

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Academic Affiliation

Chemistry4

Advisor

Blakemore, Paul R.3
Kong, Wei1
Nibler, Joseph1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2009 to 2022

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Committee Member

Ostroverkhova, Oksana[remove]4
Gable, Kevin P.2
Fang, Chong1
Gable, Kevin1
Proteau, Phil1
more Committee Members »

Creator

Alghamdi, Maha D.1
Hoyt, Amanda1
Melbardis, John1
Plagmann, Layhna S.1

Contributor

Ellinwood, Duncan C.1

Date

Date range begin – Date range end

Current results range from 2009 to 2021

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Decade

2020-20291
2010-20192
2000-20091

Degree Field

Chemistry[remove]4

Degree Level

Master's4

Degree Name

Master of Science (M.S.)[remove]4

Language

English [eng]4

License

All rights reserved4

Non-Academic Affiliation

Oregon State University. Graduate School3

Peer Reviewed

No4

Resource Type

Masters Thesis4

Rights Statement

In Copyright4

Subject

Alkaloids -- Synthesis1
Beryllium compounds1
Hydrides1
Organolithium compounds1
Sparteine -- Synthesis1
more Subjects »

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