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Relevant bibliographies by topics / Terpenoids-synthesis / Dissertations / Theses

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Dissertations / Theses on the topic 'Terpenoids-synthesis'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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1

Kaliappan, K. "Synthetic Investigations On Terpenoids." Thesis, Indian Institute of Science, 1996. http://hdl.handle.net/2005/115.

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The thesis entitled "SYNTHETIC INVESTIGATIONS ON TERPENOIDS" consists of two chapters. Chapter I deals with the total synthesis of the sesquiterpenes, 2-pupukeanone 1 Norpatchoulenol 2 and patchouli alcohol 3 and is divided into four sections.

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2

Chen, Ligong. "Polyene cyclisations initiated by acyl radicals leading to polycycle constructions." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240260.

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3

Mahmood, Arshed. "Enantioselective approaches to the synthesis of terpenoids and terpenoid derived alkaloids." Thesis, University of Salford, 1999. http://usir.salford.ac.uk/26791/.

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Previous work at Salford involved the deprotonation of meso epoxide (Ha) with chiral lithium amide bases, to produce the crural allylic alcohol (Ilia) and the enantioselective deprotonation of meso ketone (I) to provide chiral silyl enol ether (V). In this thesis the potential utility of highly functionalised [3.3.0]bicyclooctane systems (Illb) and (VI) as flexible precursors to biologically active natural products is investigated. Meso epoxide (lib), was prepared stereoselectively in the exo form. Conditions were explored for transforming the epoxide to allylic alcohol (Illb), using a variety

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4

Smitt, Olof. "Syntheses of Allelochemicals for Insect Control." Doctoral thesis, KTH, Chemistry, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3401.

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<p>This thesis describes the synthetic preparation of somecompounds, which can serve as chemical signals for use in thedevelopment of control methods for pest insects. The compoundssynthesised are of the isoprenoid type and of two kinds:carvone derivatives and germacranes. The derivatives of carvoneare based on modifications of this compound, by reactions ofeither its endocyclic or its exocyclic double bond. One type ofmodifications was accomplished by chemoselective additions ofthiophenol. The latter ones imply additions to the exocyclicdouble bond and seem to constitute general, previously r

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5

Shah, Parin Ajay. "Synthesis of terpenoids using a tandem cationic cascade cyclization-electrophilic aromatic substitution reaction." Diss., University of Iowa, 2018. https://ir.uiowa.edu/etd/6639.

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The terpene and terpenoid family of compounds is considered to be the largest group of natural products. These compounds not only display great diversity in their structural features but are also known to have a multitude of biological activities including but not limited to anti-bacterial, anti-cancer, anti-inflammatory, and anti-HIV properties. Remarkably, all the terpenoids formed in nature come from two molecules viz. isopentenyl pyrophosphate and its isomer, dimethylallyl pyrophosphate both consisting of just five carbons but assembled in many ways. Nature utilizes highly efficient, enzym

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6

Ellerbrock, Pascal [Verfasser], and Dirk [Akademischer Betreuer] Trauner. "Biomimetic synthesis of polyketides : dibefurin and epicolactone and synthetic studies toward gracilin terpenoids / Pascal Ellerbrock. Betreuer: Dirk Trauner." München : Universitätsbibliothek der Ludwig-Maximilians-Universität, 2015. http://d-nb.info/1090785569/34.

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7

Ly, Tai Wei. "Synthetic studies on terpenoids, total synthesis of the marine natural product nanaimoal : towards the total synthesis of solidago alcohol via an intermolecular Diels-Alder approach." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0011/NQ59991.pdf.

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8

Selvakumar, N. "Synthetic investigations on terpenoids." Thesis, Indian Institute of Science, 1994. http://hdl.handle.net/2005/110.

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The thesis entitled "Synthetic Investigations on Terpenoids" is divided into two sections. Section 1 deals with the total synthesis of sesquiterpenes belonging to the Zizsene group and Section 2 contains the synthetic investigations on the furanoid dlterpenes of labdane group.

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9

Iqbal, Shagufta. "Effects of azadirachtin on protein synthesis in specific tissues of the desert locust Schistocerca gregaria." Thesis, University of Glasgow, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301503.

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10

Isaksson, Dan. "Lipase catalysed reactions of terpenoids : formation of hemiacetal esters : resolution of cryptone and its transformation to cadinenes." Doctoral thesis, Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-588.

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11

"Development of Biomimetic Polyene Cyclization Directed towards Total Synthesis of Polycyclic Terpenoids." Thesis, 2007. http://hdl.handle.net/2237/7529.

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12

Uyanik, Muhammet. "Development of Biomimetic Polyene Cyclization Directed towards Total Synthesis of Polycyclic Terpenoids." Thesis, 2007. http://hdl.handle.net/2237/7529.

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13

Ravi, G. "Total Synthesis Of Sesquiterpenes, Seychellene, Trachyopsanes And Bisepoxysecocalamenenes." Thesis, 2009. http://hdl.handle.net/2005/947.

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Among Nature's creation, terpenoids are more versatile and exciting natural products. In a remarkable display of synthetic ingenuity and creativity, nature has endowed terpenes with a bewildering array of carbocyclic frameworks with unusual assemblage of rings and functionalities. This phenomenal structural diversity of terpenes makes them ideal targets for developing and testing new synthetic strategies for efficient articulation of carbocyclic frameworks. The thesis entitled “Total Synthesis of Sesquiterpenes Seychellene, Trachyopsanes and Bisepoxysecocalamenenes” describes the studies direc

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14

Tang, Fei. "Integrating Diverse Methodologies and Strategies for the Total Synthesis of Certain Alkaloids and Terpenoids." Phd thesis, 2018. http://hdl.handle.net/1885/155149.

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The body of this thesis is comprised of five scientific articles and is preceded by an overview that contextualizes all of this published/submitted/to be submitted work. The first major part of this thesis is comprised of publication 1. This is a review concerned with the application of Raney-cobalt in organic synthesis. The author's work described in publications 2 and 3 featured Raney-cobalt mediated reductive cyclization reactions as key steps in the construction of the framework of various uleine alkaloids and certain of these are highlighted in this review. Publication 2 comprises t

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15

Shripad, Likhite Nachiket. "Synthesis Of Bioactive Marine Meroterpenoids : Frondosins And Liphagal." Thesis, 2009. http://etd.iisc.ernet.in/handle/2005/1993.

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The sea conceals a mermaid’s grotto of useful chemicals-marine natural products of therapeutic potential. Marine sponges in particular are a rich source of natural products with structural diversity and novel biological activity. In recent times, there has been a growing interest in the synthesis of marine natural products. The present thesis entitled, “Synthesis of bioactive marine meroterpenoids: frondosins and liphagal” is an endeavor along the same lines and is organized under two parts –Part A and Part B. Part A: Studies towards the total synthesis of (±) frondosins A and B Frondosins A

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16

Pallavi, Kotapalli. "Synthesis Of Medium Ring Carbasugar Analogues And Terpenoid Natural Products." Thesis, 2007. http://hdl.handle.net/2005/593.

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Nature’s expertise in creating breathtaking structural wonders which are vital for sustenance of life on this planet has astonished and inspired many synthetic chemists. We too have been attracted towards understanding, exploring and mimicking a few of these magnificent molecular entities. Our efforts are directed towards the synthesis of two types of molecular assembles of contemporary interest; first of them are medium ring carbohydrate mimetics which are unnatural compounds inspired by Nature and other class consisted of the terpenoid natural products which are conceived and assembled by Na

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17

Umarye, Jayant Durgaram. "Towards The Total Synthesis Of Terpenoid Natural Products." Thesis, 2004. http://hdl.handle.net/2005/302.

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The construction of diverse molecular architecture conceived and created by Nature, continues to be the most exiting and challenging task to the practitioners of organic synthesis. As a result of refinement in isolation and purification techniques, recent advances in the spectroscopic methods particularly two-dimensional NMR spectroscopy and routine use of single crystal X-ray crystallography, the isolation and structural elucidation of the complex natural products has become a routine exercise. Even those natural products which are present in minute quantity, are being unraveled from the newe

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