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NMR spectra of carbohydrates

In dimethyl sulfoxide, exchange of hydroxyl protons is slow enough that hydroxyl protons are observed separately coupled to adjacent CH protons in the NMR spectra of carbohydrates [237,238,239]. Hydroxyl protons involved in intramolecular hydrogen bonds are shielded in comparison to those involved in intermolecular hydrogen bonds to dimethyl sulfoxide [240,241]. The coupling constants can be used in conjunction with Karplus-type relationships [242,243] to identify the orientation of the OH groups. The J values observed for... [Pg.26]

Ho S C, Koch H J, Stuart R S 1978 The effect of 0-deuteration upon the proton-decoupled, C-NMR spectra of carbohydrates. Carbohyd Res 64 251-256... [Pg.115]

See other pages where NMR spectra of carbohydrates is mentioned: [Pg.188]    [Pg.224]    [Pg.168]   
See also in sourсe #XX -- [ Pg.190 , Pg.192 ]

See also in sourсe #XX -- [ Pg.190 , Pg.191 ]

See also in sourсe #XX -- [ Pg.190 , Pg.191 ]

See also in sourсe #XX -- [ Pg.190 , Pg.191 ]



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Spectra carbohydrates

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