MODIFICATION OF AMINES AND ALCOHOLS
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United States of America Patent
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Issued Date -
Apr 30, 2009
app pub date -
Dec 21, 2005
filing date -
Dec 23, 2004
priority date (Note) -
Abandoned
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Abstract
A process for the modification of amines and alcohols, comprising (i) providing a substrate having amino groups or alcohol groups, wherein said substrate is, e.g., a polysaccharide; (ii) providing a modifying agent which is a lactone, an ester, a polyester, a carbonate, a polycarbonate, a lactide, a glycolide, an anhydride, an acid, a thioester or a carbamate; (iii) providing a catalyst which is, e.g., a amino acid or an organic acid; and (iv) reacting the substrate with the modifying agent in the presence of the catalyst.
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