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- W2469073578 abstract "The bromination of regenerated chitin with tribromoimidazole and triphenylphosphine was studied under homogeneous conditions in a binary solvent system composed of LiBr and N,N-dimethylacetamide. Bromodeoxychitin samples with ds values close to 1 were obtained in which C-6 hydroxyl groups were regioselectively substituted with bromine atoms. The effects of reaction conditions on the bromination were studied in detail. The results of viscometric measurements of the brominated samples showed that the molecular chain scission occurred significantly, especially at higher molar ratios of bromination reagents to the repeating unit of chitin and after longer reaction periods. The dibromination of repeating units did not occur, contrary to the case of the bromination of cellulose with the same reagent system." @default.
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- W2469073578 date "1995-01-01" @default.
- W2469073578 modified "2023-10-06" @default.
- W2469073578 title "Bromination of regenerated chitin with tribromoimidazole and triphenylphosphine under homogeneous conditions in lithium Bromide-N,N-dimethylacetamide" @default.
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