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The composition of reducing sugars in aqueous solution : glyceraldehyde, erythrose, threose
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In the syrupy state,
DL-glyceraldehyde, D-erythrose and D-threose consist mainly of mixtures of
dimeric forms. Their aqueous solutions also contain some dimers; glyceraldehyde
is present mainly as the aldehydrol, and the tetroses as mixtures of the furanoses
and the aldehydrol. All the solutions contain some (> 1 %) of the aldehydo
form. The proportion of the monomeric forms has been determined, from the 1H
n.m.r. spectra, at various temperatures.
Title: The composition of reducing sugars in aqueous solution : glyceraldehyde, erythrose, threose
Description:
In the syrupy state,
DL-glyceraldehyde, D-erythrose and D-threose consist mainly of mixtures of
dimeric forms.
Their aqueous solutions also contain some dimers; glyceraldehyde
is present mainly as the aldehydrol, and the tetroses as mixtures of the furanoses
and the aldehydrol.
All the solutions contain some (> 1 %) of the aldehydo
form.
The proportion of the monomeric forms has been determined, from the 1H
n.
m.
r.
spectra, at various temperatures.
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