Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Origin of reduced lignin structures: Quinone methides
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
2005 (English)In: Appita Annu. Conf., 2005, 147-150 p.Conference paper, Published paper (Refereed)
Abstract [en]

Recent discoveries have shown the presence of reduced lignin structures in softwood lignin, such as dihydroconiferyl alcohol and secoisolariciresinol. During lignin polymerization, the oxidative radical coupling of monolignols generates quinone methides as intermediates. Several reduction agents were tested on a quinone methide model. The products were analyzed by GC-MS and 1H, 13C, DEPT and HSQC NMR techniques were used to confirm the structure of the reduced quinone methide. An uncatalyzed reduction of this quinone methide model was achieved with β-NADH, a biologically significant reducing agent, demonstrating that the formation of reduced lignin structures is not necessarily biologically controlled.

Place, publisher, year, edition, pages
2005. 147-150 p.
Series
Appita Annual Conference, ISSN 1443-5454 ; 3
Keyword [en]
Alcohols, Nuclear magnetic resonance spectroscopy, Polymerization, Softwoods, Lignin structures, Oxidative radical coupling, Quinone methides, Lignin, Lignins, Nuclear Magnetic Resonance
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:kth:diva-156481Scopus ID: 2-s2.0-29344432392OAI: oai:DiVA.org:kth-156481DiVA: diva2:768302
Conference
59th Appita Annual Conference and Exhibition, incorporating the 13th ISWFPC: International Symposium on Wood, Fibre and Pulping Chemistry, 16-19 May 2005, Auckland, New Zealand
Note

QC 20141203

Available from: 2014-12-03 Created: 2014-11-28 Last updated: 2014-12-03Bibliographically approved

Open Access in DiVA

No full text

Scopus

Search in DiVA

By author/editor
Holmgren, AndersZhang, LimingHenriksson, Gunnar
By organisation
Fibre and Polymer Technology
Paper, Pulp and Fiber Technology

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 17 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf