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Date Permissions Signed
5-13-2016
Date of Award
Spring 2016
Document Type
Masters Thesis
Degree Name
Master of Science (MS)
Department
Chemistry
First Advisor
O'Neil, Gregory (Gregory W.)
Second Advisor
Murphy, Amanda R.
Third Advisor
Antos, John M.
Abstract
We have developed a new samarium diiodide-mediated elimination/isomerization reaction of benzoyl esters, capable of delivering olefinic products with high yield and selectivity depending on substrate structure and the additives used. The ability to selectively synthesize terminal, non-conjugated alkene substituents inspired us to use these optimized conditions in order to complete the total synthesis of the natural product, honokiol. Honokiol is a biaryl natural product isolated from magnolia trees that displays desirable oncological properties as evidenced by several biological studies in recent years. We found that our initially proposed pathway for completing the synthesis of honokiol was not a feasible route due to the sensitivity of the allylic groups. However, after adjusting our synthetic route, we were able to complete the synthesis of honokiol in 40% overall yield.
Type
Text
DOI
https://doi.org/10.25710/30yh-hj12
Publisher
Western Washington University
OCLC Number
949905132
Subject – LCSH
Samarium--Isotopes; Honokiol--Synthesis; Biphenyl compounds--Synthesis; Lignans--Synthesis
Format
application/pdf
Genre/Form
masters theses
Language
English
Rights
Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.
Recommended Citation
Wright, Alicia M., "Development of a Samarium Based Allylic Benzoate Elimination/Isomerization: Application to a Total Synthesis of Honokiol" (2016). WWU Graduate School Collection. 486.
https://cedar.wwu.edu/wwuet/486