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HERO ID
7618239
Reference Type
Journal Article
Title
STUDIES ON THE FORMATION OF BENZANTHRONES IN ALKALINE ANTHRAQUINONE PULPING
Author(s)
Karhunen, P; Brunow, G; ,
Year
1991
Is Peer Reviewed?
Yes
Journal
Acta Chemica Scandinavica
ISSN:
0904-213X
EISSN:
1902-3103
Publisher
MUNKSGAARD INT PUBL LTD
Location
COPENHAGEN
Volume
45
Page Numbers
945-948
Language
English
DOI
10.3891/acta.chem.scand.45-0945
Web of Science Id
WOS:A1991GM29700010
Abstract
Loss of anthraquinone (AQ) in alkaline pulping is partly attributed to irreversible reactions of AQ or AQ-derived compounds with lignin fragments. 3-(4-Hydroxy-3-methoxyphenyl)benz[d,e]anthracen-7-one, 3-(4-hydroxy-3,5-dimethoxyphenyl)benz[d,e]anthracen-7-one and 3-(4-hydroxyphenyl)benz[d,e]anthracen-7-one have been synthesized and their formation in reactions of isolated lignins has been studied. 2-(4-Hydroxy-3-methoxyphenyl)anthracene-9,10-dione (2-vanillylanthraquinone) has also been prepared.
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