Log in

Relevant bibliographies by topics / Synthesis of cyclopropanes

Contents

Dissertations / Theses

Academic literature on the topic 'Synthesis of cyclopropanes'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Synthesis of cyclopropanes.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Dissertations / Theses on the topic "Synthesis of cyclopropanes"

1

Ambler, P. W. "Asymmetric synthesis of cyclopropanes." Thesis, University of Oxford, 1988. https://ora.ox.ac.uk/objects/uuid:958e77c2-d15e-4d8f-af84-36dca36e4215.

Full text

Abstract:

This thesis is concerned with the asymmetric synthesis of cyclopropyl derivatives via the use of chiral iron acyl complexes of the type (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Fe(CO)(PPh<sub>3</sub>)(COCH=CR'R), Chapter 1 reviews previous routes to optically active cyclopropyl derivatives and reviews the use of the chiral auxiliary (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Fe(CO)(PPh<sub>3</sub>) for asymmetric synthesis. Chapter 2 describes the synthesis of the complexes (η<sup>5</sup>-C<sub>5</sub>H<sub>5</sub>)Fe(CO)(PPh<sub>3</sub>)(COCH=CRR') and presents a conformational an

APA, Harvard, Vancouver, ISO, and other styles

2

Watson, Hayley. "Synthesis and reactivity of cyclopropanes and cyclopropenes." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/9032.

Full text

Abstract:

Activated cyclopropanes have been extensively used in synthetic chemistry as precursors for cycloaddition reactions. The rationale behind this is their ability to undergo ring-opening when activated by a Lewis acid, this can be enhanced further by the presence of a carbocation stabilising group like electron-rich aromatics. The stabilised dipole formed after ring opening can be trapped with suitable electrophiles such as imines and aldehydes via a [3+2] cycloaddition reaction. This results in the synthesis of pyrrolidines and tetrahydrofurans in excellent yields but moderate diastereoselectivi

APA, Harvard, Vancouver, ISO, and other styles

3

Minicone, Fabrizio. "Stereoselective synthesis of cyclopropanes with quaternary carbon centres." Thesis, Queen Mary, University of London, 2014. http://qmro.qmul.ac.uk/xmlui/handle/123456789/8766.

Full text

Abstract:

Multi-substituted optically pure cyclopropanes are important motifs present in many agrochemicals, pharmaceuticals and materials employed in manifold applications. Their synthesis is challenging due to both the strained conformation and the need to control both the relative and absolute stereochemistry. This thesis describes an investigation of the scope of the Wadsworth-Emmons cyclopropanation, highlighting it as a potential efficient methodology for diastereoselective and enantiospecific synthesis of these valuable ring systems. Chapter 1 is an introduction to the cyclopropanation protocols

APA, Harvard, Vancouver, ISO, and other styles

4

Sweesi, Miloud E. M. "Studies of the synthesis of cyclopropanes and cyclobutenes." Thesis, Bangor University, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.438828.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Clarke, C. "Comparative chemistry of protected phosphines within the synthesis of cyclopropanes." Thesis, University of Cambridge, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597723.

Full text

Abstract:

On treatment with base, diphenylphosphinoyl esters 3 (X=O) give cyclopropanes 4 <i>via</i> a series of steps including intramolecular acyl and phosphinoyl transfer processes. β-Substituted esters have been shown to give cyclopropanes with high diastereoselectivity. This thesis describes the synthesis of optically active β-substituted esters using Evans’ alkylation methodology and their use in the stereocontrolled synthesis of substituted cyclopropanes. It was found that that phosphine oxide 1 (X=O) is unstable in the conditions of the alkylation reaction and the corresponding phosphine borane

APA, Harvard, Vancouver, ISO, and other styles

6

Ner, S. K. "The synthesis and testing of cyclopropane inhibitors of Carboxypeptidase A." Thesis, University of Strathclyde, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.381719.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Huang, Weisheng. "Catalytic asymmetric cyclopropanation and oxidation of tri-, di- and monofluoromethyl styrenes Rhodium catalysed enantioselective synthesis of mono-(halo)-methyl-cyclopropanes Catalytic enantioselective synthesis of highly functionalized difluoromethylated cyclopropanes General catalytic enantioselective access to monohalomethyl and trifluoromethyl cyclopropanes Catalytic asymmetric synthesis of α,α-difluoromethylated and α-fluoromethylated tertiary alcohols". Thesis, Normandie, 2019. http://www.theses.fr/2019NORMIR25.

Full text

Abstract:

Ce manuscrit décrit la synthèse énantiosélective de cyclopropanes trifluorométhylés, difluorométhylés et mono-halométhylés hautement fonctionnalisés. Cette synthèse repose sur la cyclopropanation d’alcènes. De plus, la synthèse d’alcools tertiaires difluorométhylés à partir des oléfines fluorées correspondantes suivant un processus de dihydroxylation asymétrique est décrite. Ce manuscrit se découpe en 3 chapitres. Le premier chapitre décrit la première synthèse catalytique asymétrique de cyclopropanes difluorométhylés en utilisant le Rh₂((S)-BTPCP)₄ comme catalyseur pour la réaction de cyclopr

APA, Harvard, Vancouver, ISO, and other styles

8

Dorsey, Gordon Owen. "Design and synthesis of substituted cyclopropanes as conformationally restrained dipeptide mimics." Thesis, Austin, Texas : University of Texas at Austin, 1992. http://handle.dtic.mil/100.2/ADA252441.

Full text

Abstract:

Thesis (M.A. in Chemistry)--University of Texas at Austin, May 1992.<br>"May 1992." Description based on title screen as viewed on April 8, 2009. Includes bibliographical references (p. 94-101). Also available in print.

APA, Harvard, Vancouver, ISO, and other styles

9

Ivashkin, Pavel. "Synthesis of original fluorinated cyclopropylcarboxylates." Phd thesis, INSA de Rouen, 2013. http://tel.archives-ouvertes.fr/tel-00924650.

Full text

Abstract:

Organofluorine compounds constitute a large part of all the drugs, crop protection agents and advanced materials produced nowadays. Therefore, there is a great interest in developing the new methods of synthesis of organofluorine compounds. In this thesis we report a novel method of synthesis of monofluorinated cyclopropanes based on the Michael-initiating ring closure (MIRC) reaction. Our method allows obtaining polysubstituted monofluorinated cyclopropanes from ethyl dibromofluoroacetate and various Michael acceptors. We have also implemented the asymetric version of cyclopropanation using a

APA, Harvard, Vancouver, ISO, and other styles

10

Highton, Adrian. "Organic synthesis using iron (III) mediated fragmentation reactions of silyoxycyclopropanes." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311749.

Full text

APA, Harvard, Vancouver, ISO, and other styles

More sources

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!