Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Synthesis os S-Thioacetate Functionalized Cobalt(II) Porphyrins and Heterogenization on gold Surface
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
Visa övriga samt affilieringar
2006 (Engelska)Ingår i: European Journal of Organic Chemistry, ISSN 1434-193X, E-ISSN 1099-0690, nr 5, s. 1193-1199Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Cobalt tetraarylporphyrins 1-Co and 2-Co with thioacetate-functionalized carbon chains on the aryl groups were synthesized. The cobalt porphyrin 2-Co was immobilized on a gold surface after deprotection of the S-acetyl group. The immobilized porphyrin was studied by X-ray Photoelectron Spectroscopy (XPS) and the results suggest that a complete monolayer of porphyrins is formed.

Ort, förlag, år, upplaga, sidor
Wiley-VCH Verlagsgesellschaft, 2006. nr 5, s. 1193-1199
Nyckelord [en]
functionalized porphyrin, immobilization, gold surface, monolayers, photoelectron spectroscopy
Nationell ämneskategori
Kemi
Identifikatorer
URN: urn:nbn:se:su:diva-24478DOI: 10.1002/ejoc.200500656OAI: oai:DiVA.org:su-24478DiVA, id: diva2:197627
Anmärkning

Part of urn:nbn:se:su:diva-71

Tillgänglig från: 2004-03-11 Skapad: 2004-03-11 Senast uppdaterad: 2017-12-13Bibliografiskt granskad
Ingår i avhandling
1. Studies of Biomimtic Oxidations and Racemizations
Öppna denna publikation i ny flik eller fönster >>Studies of Biomimtic Oxidations and Racemizations
2004 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

This thesis deals with studies of ruthenium-catalyzed hydrogen transfer reactions for oxidations and racemization.

Through optimisation of the substrate-selective redox catalyst, the electron and proton transfer mediator (a benzoquinone derivative), and the oxygen-activating metal macrocycle a highly efficient biomimetic oxidation of secondary alcohols was obtained. Several alcohols were subjected to the new oxidation protocol and the corresponding ketones were isolated in high yield.

The deactivation of the oxygen-activating metal macrocycle retarded the aerobic oxidation of primary alcohols. Encapsulation of the metal macrocycle into zeolite, described in chapter 3, proved to be an efficient method to solve this problem and comparable conversion of alcohols was achieved. The immobilization of the oxygen-activating porphyrin to a surface can be an alternative approach to solve the deactivation problem. Therefore as the first step towards studies of immobilized porphyrins on a metal surface (of gold or silver), S-thioacetyl derivatized porphyrins were synthesized; two alternative syntheses are described in chapter 4.

A new and effecient ruthenium-catalyzed racemization protocol was established by proper ligand tuning. The racemization of the enantiomerically pure alcohols was increased significantly; this work is reported in chapter 5.

Ort, förlag, år, upplaga, sidor
Stockholm: Institutionen för organisk kemi, 2004. s. 52
Nyckelord
oxidation of alcohols, ruthenium, porphyrin, racemization
Nationell ämneskategori
Organisk kemi
Identifikatorer
urn:nbn:se:su:diva-71 (URN)91-7265-819-3 (ISBN)
Disputation
2004-04-01, Magnélisalen, Arrheniuslaboratoriet, Svante Arrhenius väg 12 A, Stockholm, 14:00
Opponent
Handledare
Tillgänglig från: 2004-03-11 Skapad: 2004-03-11 Senast uppdaterad: 2013-08-15Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltext
Av organisationen
Institutionen för organisk kemi
I samma tidskrift
European Journal of Organic Chemistry
Kemi

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 1167 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf