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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 (författare)
- KTH,Kärnkemi
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- Lind, Johan (författare)
- KTH,Kärnkemi
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- Merényi, Gabor (författare)
- KTH,Kärnkemi
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(creator_code:org_t)
- 2006
- 2006
- Engelska.
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Ingår i: Holzforschung. - 0018-3830 .- 1437-434X. ; 60:2, s. 130-136
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Nyckelord
- carbohydrate
- carbonate radical
- glucosidic cleavage
- hydrogen abstraction
- intramolecular
- model compounds
- selectivity
- Chemistry
- Kemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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