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High Resolution 1H NMR Structural Studies of Sucrose Octaacetate in Supercritical Carbon Dioxide

High Resolution 1H NMR Structural Studies of Sucrose Octaacetate in Supercritical Carbon Dioxide

Baby Chandrika, Laura K Schnackenberg, Poovathinthodiyil Raveendran, Scott L Wallen

Chemistry. 2005 Oct 21;11(21):6266-71.

PMID: 16078290

Abstract:

High pressure (HP), high resolution (HR), proton nuclear magnetic resonance (1H NMR) spectroscopy has been utilized for the first time to investigate the solution structure of a carbohydrate based system, sucrose octaacetate (SOA), in supercritical CO2. The studies indicate that the average solution state conformation of the alpha-D-Glucopyranosyl ring of SOA in scCO2 medium is consistent with the 4C1 chair form, while the beta-D-fructofuranosyl ring adopts an envelope conformation. The investigations also suggest that scCO2 is a promising medium to study the solution structure and conformation of acetylated sugar systems. Spectral manifestations of a specific interaction between the acetate methyl protons and CO2 molecules are also presented.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP126147-A	D-(+)-Sucrose octaacetate		126-14-7	Price

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