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13C-selective, 1H-detected 2D {1H, 13C} correlation spectra of oligosaccharides

✍ Scribed by Leszek Poppe; Herman van Halbeek

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
295 KB
Volume
29
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Two‐dimensional ^1^H‐detected {^1^H, ^13^C} shift correlation spectra of oligosaccharides usually suffer from low resolution in the ^13^C frequency domain. This drawback can be overcome through a simple modification of the HSQC experiment, namely by implementing a selective ^13^C 180° pulse. It is illustrated for the mixture of the α‐and β‐anomers of the trisaccharide sialyl‐α(2→6)‐lactose that ^13^C‐selective HSQC allows both one‐bond and multiple‐bond {^1^H, ^13^C} correlation spectra to be obtained with high resolution in the ^13^C domain.

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