ELECTRON-TRANSFER REACTIONS IN PULPING SYSTEMS .7. DEGRADATION REACTIONS OF BETA-METHOXY LIGNIN MODELS

Authors
DIMMEL DR BOVEE LF BROGDON BN
Citation
Dr. Dimmel et al., ELECTRON-TRANSFER REACTIONS IN PULPING SYSTEMS .7. DEGRADATION REACTIONS OF BETA-METHOXY LIGNIN MODELS, Journal of wood chemistry and technology, 14(1), 1994, pp. 1-15
Citations number
19
Categorie Soggetti
Materials Science, Paper & Wood
Journal title
Journal of wood chemistry and technology → ACNP
ISSN journal
02773813
Volume
14
Issue
1
Year of publication
1994
Pages
1 - 15
Database
ISI
SICI code
0277-3813(1994)14:1<1:ERIPS.>2.0.ZU;2-X
Abstract
Two beta-methoxy lignin model compounds were heated at 150-degrees-C i n aqueous sodium hydroxide and in mixtures of NaOH/glucose, and NaOH/g lucose/AQ. Practically no beta-ether cleavage was observed under these simulated pulping conditions. The principal products were vinyl ether s and C(alpha)-reduction products; the former dominating in NaOH, the latter in the anthraquinone case. The observation of C(alpha)-reductio n products indicates that electron transfer reactions had occurred. At tempts to prepare beta-(3-butenyl)-beta-methoxy lignin models failed.