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The composition and conformation of d-threo-3,4-hexodiulose in solution, and the X-ray crystal structure of its ββ anomer

✍ Scribed by Stephen J. Angyal; Donald C. Craig; János Kuszmann

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
534 KB
Volume
194
Category
Article
ISSN
0008-6215

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✦ Synopsis

The crystal structure of D-threo-3,Chexodiulose was determined, and it showed that the crystalline form is the p/3 anomer. In solution, the (~a anomer is preponderant, although all of its hydroxyl groups are cis to each other. In the crystal, the diulose assumes the endo,exo conformation; in the aqueous solutions of both anomers, the endo,endo form preponderates, whereas the acetates in chloroform are mainly in the exo,exo conformation. *Dedicated to the memory of Professor Edgar Lederer.

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