Crystalline 3---d-glucopyranosyl--d-arabinopyranose monohydrate, mp 120 to 121 °C, and 3---d-gluecopyranosyl--d-arabinopyranose, mp 155 to 157 °C, were prepared from a sirup obtained by the Ruff degradation of calcium maltobionate. For the monohydrate, , and for the anhydrous form, . The structure of the sugar was established by converting it into maltose. Treatment of the form with pyridine-acetic anhydride gave a heptaacetate, mp 127 to 128 °C, ( 2.5, chloroform). The form gave a heptaacetate, mp 194.5-195.5° C, ( 2.5, chloroform).
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| http://dx.doi.org/10.6028/jres.072A.051 | DOI Listing |
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