Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637211
Title: Organic synthesis with the aid of microporous solids
Author: Hammond, M. E. W.
Awarding Body: University of Wales Swansea
Current Institution: Swansea University
Date of Award: 1999
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Abstract:
An introduction to aluminosilicates used as catalysts, particularly those which can act as heterogeneous acid catalysts, is provided in chapter one. Reference is made to the structure of zeolites, clays and certain amorphous solids, relating this aspect of the solid to its role as a catalyst. Chapter two provides background information to aromatic nitration with particular reference to the use of solid supports. A discussion of the possible reaction mechanism is included. This chapter goes on to detail the investigation of nitration of p-terphenyl and p-quinquephenyl, effected in particular by benzoyl nitrate over solid support catalysts. Chapter three has a discussion of electrophilic chlorination of aromatic substrates. The discussion focuses on factors affecting the o:p substitution ratio. The investigation of highly selective mono-chlorination reactions of toluene is reported. These reactions were effected by n-alkyl and t-alkyl hypochlorites in various organic solvents over a range of solid catalysts. The halogenation theme is continued in chapter four with the bromination of toluene. Molecular bromine and t-butyl hypobromite were used in conjunction with solid acid catalysts. Chapter five contains the notes of some preliminary investigations in to the use of titanosilicate catalysts for oxidation reactions.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.637211  DOI: Not available
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