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A selectivity study...
A selectivity study of reaction of the carbonate radical anion with methyl beta- D-cellobioside and methyl beta-D-glucoside in oxygenated aqueous solutions
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- Carlsson, Magnus (author)
- KTH,Kärnkemi
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- Lind, Johan (author)
- KTH,Kärnkemi
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- Merényi, Gabor (author)
- KTH,Kärnkemi
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(creator_code:org_t)
- 2006
- 2006
- English.
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In: Holzforschung. - 0018-3830 .- 1437-434X. ; 60:2, s. 130-136
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https://urn.kb.se/re...
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Abstract
Subject headings
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- In the presence of oxygen, radiolytically generated carbonate radical anions, CO3.-, were reacted with methyl beta-D-cellobioside and methyl beta-D-glucoside. From the ensuing product pattern, it was concluded that CO3 center dot- abstracts hydrogen atoms predominantly from glucosidic C1 - H bonds. This high intramolecular selectivity was rationalised mainly in terms of a polar effect on the transition state of the hydrogen abstraction reaction. The present findings are in sharp contrast to the relative inertness of CO3(center dot-) towards glucosidic C1 - H bonds previously observed in cotton linters. The reasons for this discrepancy are discussed in light of a possible future role of CO3 center dot- as a bleaching agent for pulp.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- carbohydrate
- carbonate radical
- glucosidic cleavage
- hydrogen abstraction
- intramolecular
- model compounds
- selectivity
- Chemistry
- Kemi
Publication and Content Type
- ref (subject category)
- art (subject category)
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