Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.674902
Title: A chiral auxiliary approach to the synthesis of mechanically planar-chiral rotaxanes
Author: Bordoli, Robert J.
ISNI:       0000 0004 5370 2348
Awarding Body: Queen Mary, University of London
Current Institution: Queen Mary, University of London
Date of Award: 2015
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Abstract:
Rotaxanes are a class of compounds composed of two or more mechanically interlocked molecules. Mechanically planar chiral rotaxanes are a novel class of compound in that their chirality is due to the isomerism of a mechanical bond, as opposed to the covalent bonding of the individual components. We know of no method to synthesise enantiomerically pure samples of the mechanical isomers of a mechanically planar chiral rotaxane without resorting to advanced purification techniques. The lack of ready availability of these materials has hampered the full investigation of their properties and applications. Of particular interest are their properties as chiral reaction-spaces, such as ligands, organo-catalysts, and chiral resolution agents. This thesis addresses these issues by developing a chiral-auxiliary approach toward the synthesis of mechanically planar chiral rotaxanes whereby an intermediate pair of diastereomeric rotaxanes are synthesised and separated using reliable and scalable standard laboratory techniques. Cleavage of the chiral auxiliary allows for the synthesis of enantiopure mechanically planar chiral rotaxanes. Tuning the structure of the mechanically interlocked components as well as the reaction conditions allows for control over the diastereoselectivity during the mechanical bond forming step.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.674902  DOI: Not available
Keywords: Rotaxanes ; mechanical isomers
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