Alditol acetate

Chromatography Forum: GC Archives: Alditol acetate
Top of pagePrevious messageNext messageBottom of pageLink to this message  By Tanja Thomson on Wednesday, May 19, 2004 - 12:39 am:

At our lab, we analyse polymeric carbohydrates by hydrolysing the polymers and turning the monomeric sugars into alditol acetates with acetic anhydride and 1-methylimidazol as katalysator. Solvent is ethylacetate. The dervatisation take several steps. 1. reduction af monosaccharides to the alditol derivat. 1. acetylation. Today we consider doing this in a on-pot synthesis. Do any one see any problem with that?


Top of pagePrevious messageNext messageBottom of pageLink to this message  By Fabiano on Monday, May 24, 2004 - 05:16 am:

Donīt you remove the boric acid formed with a cation exchanger?
We use a Oxime-TMS derivative with the advantage of consecutive reactions in same vial.


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