Reaction of periodic acid on the difructose anhydrides.
نویسندگان
چکیده
Diheterolevulosan, difructose anhydrides I. III, and II react, respectively, with 4, 2, 1, and 1 moles of periodic acid per mole of sugar. These results are in keeping with the known structures of the first three sugars. It is suggested that difructose anhydride II is a 1,2' -2,4'-difructofuranose. CONTENTS Page
منابع مشابه
Structure of difructose anhydride II.
The difructose anhydrides include four welldefined crystalline sugars. Diheterolevulosan was first prepared by Pictet and Chavan [1]l by the action of concentrated hydrochloric acid on fructose at 0° C. This sugar is a difructopyranose in which carbon atoms 1 and 2 of each fructose residue are joined to form a dioxane ring. The other members [2,3] of this group arc designated difructose anhydri...
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The effects of difructose anhydride III (DFAIII) on stimulating calcium absorption was investigated in humans. We studied changes in the time-course of characteristics urinary calcium excretion in 12 healthy men given 0.3, 1.0 or 3.0 g of DFAIII and 300 mg of calcium as calcium carbonate. In addition, urinary excretion and urine concentrations of creatinine and deoxypyridinoline were determined...
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متن کاملDifructose Anhydride III in Rats
ilVbrthet:n Advancement Clenterfor Science and 7leehnologyL Colabo-Hbkkaido, Supporo OOi-OCI2i. Jbpan toepartment ofIlood Science and Hbeman Mstrition, fuculty of Hiiman Lijle Science, Fletji PVbmen ls Uhiversity, lshikari 061-3204, lapan 3Central Research Cente4 thnci Cbtporation, Ybkohama 244-080a Jbpan Division ofApplied Biosciencq Graduate School ofAgriculture, HOkkaido Uitiversity, Samporo...
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ورودعنوان ژورنال:
- Journal of research of the National Bureau of Standards
دوره 35 شماره
صفحات -
تاریخ انتشار 1945