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A re-investigation of the phosphorylation of dextran with polyphosphoric acid: Evidence for the formation of different types of phosphate moieties

✍ Scribed by Daniel Sacco; Danièle Klett-Zygmunt; Edith Dellacherie

Publisher: Elsevier Science
Year: 1988
Tongue: English
Weight: 563 KB
Volume: 184
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(88)80017-x

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✦ Synopsis

The products of phosphorylation of dextran with polyphosphoric acid have been re-investigated by gel filtration, potentiometric titration, and 31P-n.m.r. spectroscopy. Mainly (SO-88%) alkyl phosphates are formed together with alkyl diphosphates and dialkyl phosphates, the percentages of which depended on the duration of phosphorylation. Mild acid treatment of the crude samples hydrolyzed the diphosphates and gave products with ~95% of monophosphate structures.

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