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Macromolecular Research, Vol.24, No.7, 650-653, July, 2016
Selective and full derivatization of amino group in chitosan with alkyl chloroformate of low stereo-hindrance
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Chitosan alkoxy formamide derivatives were prepared from chitosan of ultrahigh deacetylation degree via two-step reactions. It was found that amino groups in the chitosan were almost completely alkoxyformylated when low stereo-hindrance alkyl chloreformates were used as the modifying agents, while hydroxyls in chitosan were unreaaacted.
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