STUDIES ON LIGNIN AND RELATED COMPOUNDS: IX. ETHERS OF GLYCOL-LIGNIN
Keyword(s):
Glycol-lignin prepared from spruce wood has been found to form a sodium salt which reacts with chloro-derivatives, giving rise to the corresponding glycol-lignin ethers. These compounds are insoluble in aqueous sodium hydroxide but still contain free hydroxyl groups which can be methylated without the ethereal linkage being broken. Hence glycol-lignin contains several free hydroxyl groups, one or more of which possess acidic properties. Both the methoxymethyl ether and the 2:4-dinitrophenyl ether of glycol-lignin have been prepared. The evidence would seem to indicate the presence of both phenolic and aliphatic hydroxyl groups.
Keyword(s):
1996 ◽
Vol 25
(8)
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pp. 711-729
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2000 ◽
Vol 198
(1-2)
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pp. 127-137
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Keyword(s):
1973 ◽
Vol 21
(12)
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pp. 2679-2683
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1997 ◽
Vol 159
(1)
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pp. 119-135
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1992 ◽
Vol 229
(2)
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pp. 369-375
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