Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Iron and ruthenium catalysts for hydrogen transfer reactions

Tools
- Tools
+ Tools

Johnson, Tarn C. (2012) Iron and ruthenium catalysts for hydrogen transfer reactions. PhD thesis, University of Warwick.

[img]
Preview
Text
WRAP_THESIS_Johnson_2012.pdf - Submitted Version

Download (5Mb) | Preview
Official URL: http://webcat.warwick.ac.uk/record=b2582820~S1

Request Changes to record.

Abstract

The ruthenium catalysed oxidation of 1-phenylethanol derivatives with the
release of hydrogen gas has been studied. A hydrogen acceptor was introduced in
an effort to elucidate the rate-determining step of the reaction.
The transfer of hydrogen from complex alcohols to simple aldehydes and
ketones was pursued as a process for obtaining simple alcohols for fuel cell
applications. The Shvo catalyst was identified as being the most efficient catalyst
for the oxidation of difficult substrates.
A family of iron analogues of the Shvo catalyst were synthesised and
studied as precatalysts for the oxidation of alcohols. Catalyst activation was
achieved by the removal of a CO ligand using trimethylamine-N-oxide and the
oxidation of 1-phenylethanol derivatives with acetone was studied. Simple
aldehydes were evaluated as hydrogen acceptors and a novel formylation reaction
was discovered.
Asymmetric iron analogues of the Shvo catalyst were synthesised and
applied to the asymmetric transfer hydrogenation of acetophenone using 5:2 formic
acid/triethylamine. The synthesis of further analogues with a tethering group was
investigated to improve catalyst stability and enantioselectivity.
Novel chiral diamine and amino-alcohol ligands containing 1,2,3-triazole
functionalities were developed as ligands for the asymmetric transfer hydrogenation
of ketones. Tridentate diaminotriazoles provided the best activity and selectivity in
the reduction reactions with Ru3(CO)12.

Item Type: Thesis or Dissertation (PhD)
Subjects: Q Science > QD Chemistry
Library of Congress Subject Headings (LCSH): Iron catalysts, Ruthenium, Catalysts, Oxidation
Official Date: May 2012
Dates:
DateEvent
May 2012Submitted
Institution: University of Warwick
Theses Department: Department of Chemistry
Thesis Type: PhD
Publication Status: Unpublished
Supervisor(s)/Advisor: Wills, Martin
Sponsors: Engineering and Physical Sciences Research Council (EPSRC)
Extent: viii, 236 leaves : ill., charts
Language: eng

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics

twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us